text: //======= Copyright (c) Valve Corporation, All rights reserved. ===============
  //
  // Purpose: Header for flatted SteamAPI. Use this for binding to other languages.
  // This file is auto-generated, do not edit it.
  //
  //=============================================================================
  
  #ifndef __OPENVR_API_FLAT_H__
  #define __OPENVR_API_FLAT_H__
  #if defined( _WIN32 ) || defined( __clang__ )
  #pragma once
  #endif
  
  #ifdef __cplusplus
  #define EXTERN_C extern "C"
  #else
  #define EXTERN_C
  #endif
  
  #define OPENVR_FNTABLE_CALLTYPE __stdcall
  
  // OPENVR API export macro
  #if defined( _WIN32 ) && !defined( _X360 )
  	#if defined( OPENVR_API_EXPORTS )
  	#define S_API EXTERN_C __declspec( dllexport )
  	#elif defined( OPENVR_API_NODLL )
  	#define S_API EXTERN_C
  	#else
  	#define S_API extern "C" __declspec( dllimport ) 
  	#endif // OPENVR_API_EXPORTS
  #elif defined(__GNUC__)
  	#if defined( OPENVR_API_EXPORTS )
  	#define S_API EXTERN_C __attribute__ ((visibility("default")))
  	#else
  	#define S_API EXTERN_C
  	#endif // OPENVR_API_EXPORTS
  #else // !WIN32
  	#if defined( OPENVR_API_EXPORTS )
  	#define S_API EXTERN_C
  	#else
  	#define S_API EXTERN_C
  	#endif // OPENVR_API_EXPORTS
  #endif
  
  #include <stdint.h>
  
  #if defined( __WIN32 )
  typedef char bool;
  #else
  #include <stdbool.h>
  #endif
  
  
  // OpenVR Constants
  
  static const unsigned int k_unTrackingStringSize = 32;
  static const unsigned int k_unMaxDriverDebugResponseSize = 32768;
  static const unsigned int k_unTrackedDeviceIndex_Hmd = 0;
  static const unsigned int k_unMaxTrackedDeviceCount = 16;
  static const unsigned int k_unTrackedDeviceIndexOther = 4294967294;
  static const unsigned int k_unTrackedDeviceIndexInvalid = 4294967295;
  static const unsigned int k_unMaxPropertyStringSize = 32768;
  static const unsigned int k_unControllerStateAxisCount = 5;
  static const unsigned long k_ulOverlayHandleInvalid = 0;
  static const unsigned int k_unScreenshotHandleInvalid = 0;
  static const char * IVRSystem_Version = "IVRSystem_012";
  static const char * IVRExtendedDisplay_Version = "IVRExtendedDisplay_001";
  static const char * IVRTrackedCamera_Version = "IVRTrackedCamera_003";
  static const unsigned int k_unMaxApplicationKeyLength = 128;
  static const char * k_pch_MimeType_HomeApp = "vr/home";
  static const char * k_pch_MimeType_GameTheater = "vr/game_theater";
  static const char * IVRApplications_Version = "IVRApplications_006";
  static const char * IVRChaperone_Version = "IVRChaperone_003";
  static const char * IVRChaperoneSetup_Version = "IVRChaperoneSetup_005";
  static const char * IVRCompositor_Version = "IVRCompositor_016";
  static const unsigned int k_unVROverlayMaxKeyLength = 128;
  static const unsigned int k_unVROverlayMaxNameLength = 128;
  static const unsigned int k_unMaxOverlayCount = 64;
  static const char * IVROverlay_Version = "IVROverlay_013";
  static const char * k_pch_Controller_Component_GDC2015 = "gdc2015";
  static const char * k_pch_Controller_Component_Base = "base";
  static const char * k_pch_Controller_Component_Tip = "tip";
  static const char * k_pch_Controller_Component_HandGrip = "handgrip";
  static const char * k_pch_Controller_Component_Status = "status";
  static const char * IVRRenderModels_Version = "IVRRenderModels_005";
  static const unsigned int k_unNotificationTextMaxSize = 256;
  static const char * IVRNotifications_Version = "IVRNotifications_002";
  static const unsigned int k_unMaxSettingsKeyLength = 128;
  static const char * IVRSettings_Version = "IVRSettings_002";
  static const char * k_pch_SteamVR_Section = "steamvr";
  static const char * k_pch_SteamVR_RequireHmd_String = "requireHmd";
  static const char * k_pch_SteamVR_ForcedDriverKey_String = "forcedDriver";
  static const char * k_pch_SteamVR_ForcedHmdKey_String = "forcedHmd";
  static const char * k_pch_SteamVR_DisplayDebug_Bool = "displayDebug";
  static const char * k_pch_SteamVR_DebugProcessPipe_String = "debugProcessPipe";
  static const char * k_pch_SteamVR_EnableDistortion_Bool = "enableDistortion";
  static const char * k_pch_SteamVR_DisplayDebugX_Int32 = "displayDebugX";
  static const char * k_pch_SteamVR_DisplayDebugY_Int32 = "displayDebugY";
  static const char * k_pch_SteamVR_SendSystemButtonToAllApps_Bool = "sendSystemButtonToAllApps";
  static const char * k_pch_SteamVR_LogLevel_Int32 = "loglevel";
  static const char * k_pch_SteamVR_IPD_Float = "ipd";
  static const char * k_pch_SteamVR_Background_String = "background";
  static const char * k_pch_SteamVR_BackgroundCameraHeight_Float = "backgroundCameraHeight";
  static const char * k_pch_SteamVR_BackgroundDomeRadius_Float = "backgroundDomeRadius";
  static const char * k_pch_SteamVR_Environment_String = "environment";
  static const char * k_pch_SteamVR_GridColor_String = "gridColor";
  static const char * k_pch_SteamVR_PlayAreaColor_String = "playAreaColor";
  static const char * k_pch_SteamVR_ShowStage_Bool = "showStage";
  static const char * k_pch_SteamVR_ActivateMultipleDrivers_Bool = "activateMultipleDrivers";
  static const char * k_pch_SteamVR_DirectMode_Bool = "directMode";
  static const char * k_pch_SteamVR_DirectModeEdidVid_Int32 = "directModeEdidVid";
  static const char * k_pch_SteamVR_DirectModeEdidPid_Int32 = "directModeEdidPid";
  static const char * k_pch_SteamVR_UsingSpeakers_Bool = "usingSpeakers";
  static const char * k_pch_SteamVR_SpeakersForwardYawOffsetDegrees_Float = "speakersForwardYawOffsetDegrees";
  static const char * k_pch_SteamVR_BaseStationPowerManagement_Bool = "basestationPowerManagement";
  static const char * k_pch_SteamVR_NeverKillProcesses_Bool = "neverKillProcesses";
  static const char * k_pch_SteamVR_RenderTargetMultiplier_Float = "renderTargetMultiplier";
  static const char * k_pch_SteamVR_AllowReprojection_Bool = "allowReprojection";
  static const char * k_pch_SteamVR_ForceReprojection_Bool = "forceReprojection";
  static const char * k_pch_SteamVR_ForceFadeOnBadTracking_Bool = "forceFadeOnBadTracking";
  static const char * k_pch_SteamVR_DefaultMirrorView_Int32 = "defaultMirrorView";
  static const char * k_pch_SteamVR_ShowMirrorView_Bool = "showMirrorView";
  static const char * k_pch_SteamVR_MirrorViewGeometry_String = "mirrorViewGeometry";
  static const char * k_pch_SteamVR_StartMonitorFromAppLaunch = "startMonitorFromAppLaunch";
  static const char * k_pch_SteamVR_EnableHomeApp = "enableHomeApp";
  static const char * k_pch_SteamVR_SetInitialDefaultHomeApp = "setInitialDefaultHomeApp";
  static const char * k_pch_SteamVR_CycleBackgroundImageTimeSec_Int32 = "CycleBackgroundImageTimeSec";
  static const char * k_pch_SteamVR_RetailDemo_Bool = "retailDemo";
  static const char * k_pch_Lighthouse_Section = "driver_lighthouse";
  static const char * k_pch_Lighthouse_DisableIMU_Bool = "disableimu";
  static const char * k_pch_Lighthouse_UseDisambiguation_String = "usedisambiguation";
  static const char * k_pch_Lighthouse_DisambiguationDebug_Int32 = "disambiguationdebug";
  static const char * k_pch_Lighthouse_PrimaryBasestation_Int32 = "primarybasestation";
  static const char * k_pch_Lighthouse_DBHistory_Bool = "dbhistory";
  static const char * k_pch_Null_Section = "driver_null";
  static const char * k_pch_Null_EnableNullDriver_Bool = "enable";
  static const char * k_pch_Null_SerialNumber_String = "serialNumber";
  static const char * k_pch_Null_ModelNumber_String = "modelNumber";
  static const char * k_pch_Null_WindowX_Int32 = "windowX";
  static const char * k_pch_Null_WindowY_Int32 = "windowY";
  static const char * k_pch_Null_WindowWidth_Int32 = "windowWidth";
  static const char * k_pch_Null_WindowHeight_Int32 = "windowHeight";
  static const char * k_pch_Null_RenderWidth_Int32 = "renderWidth";
  static const char * k_pch_Null_RenderHeight_Int32 = "renderHeight";
  static const char * k_pch_Null_SecondsFromVsyncToPhotons_Float = "secondsFromVsyncToPhotons";
  static const char * k_pch_Null_DisplayFrequency_Float = "displayFrequency";
  static const char * k_pch_UserInterface_Section = "userinterface";
  static const char * k_pch_UserInterface_StatusAlwaysOnTop_Bool = "StatusAlwaysOnTop";
  static const char * k_pch_UserInterface_Screenshots_Bool = "screenshots";
  static const char * k_pch_UserInterface_ScreenshotType_Int = "screenshotType";
  static const char * k_pch_Notifications_Section = "notifications";
  static const char * k_pch_Notifications_DoNotDisturb_Bool = "DoNotDisturb";
  static const char * k_pch_Keyboard_Section = "keyboard";
  static const char * k_pch_Keyboard_TutorialCompletions = "TutorialCompletions";
  static const char * k_pch_Keyboard_ScaleX = "ScaleX";
  static const char * k_pch_Keyboard_ScaleY = "ScaleY";
  static const char * k_pch_Keyboard_OffsetLeftX = "OffsetLeftX";
  static const char * k_pch_Keyboard_OffsetRightX = "OffsetRightX";
  static const char * k_pch_Keyboard_OffsetY = "OffsetY";
  static const char * k_pch_Keyboard_Smoothing = "Smoothing";
  static const char * k_pch_Perf_Section = "perfcheck";
  static const char * k_pch_Perf_HeuristicActive_Bool = "heuristicActive";
  static const char * k_pch_Perf_NotifyInHMD_Bool = "warnInHMD";
  static const char * k_pch_Perf_NotifyOnlyOnce_Bool = "warnOnlyOnce";
  static const char * k_pch_Perf_AllowTimingStore_Bool = "allowTimingStore";
  static const char * k_pch_Perf_SaveTimingsOnExit_Bool = "saveTimingsOnExit";
  static const char * k_pch_Perf_TestData_Float = "perfTestData";
  static const char * k_pch_CollisionBounds_Section = "collisionBounds";
  static const char * k_pch_CollisionBounds_Style_Int32 = "CollisionBoundsStyle";
  static const char * k_pch_CollisionBounds_GroundPerimeterOn_Bool = "CollisionBoundsGroundPerimeterOn";
  static const char * k_pch_CollisionBounds_CenterMarkerOn_Bool = "CollisionBoundsCenterMarkerOn";
  static const char * k_pch_CollisionBounds_PlaySpaceOn_Bool = "CollisionBoundsPlaySpaceOn";
  static const char * k_pch_CollisionBounds_FadeDistance_Float = "CollisionBoundsFadeDistance";
  static const char * k_pch_CollisionBounds_ColorGammaR_Int32 = "CollisionBoundsColorGammaR";
  static const char * k_pch_CollisionBounds_ColorGammaG_Int32 = "CollisionBoundsColorGammaG";
  static const char * k_pch_CollisionBounds_ColorGammaB_Int32 = "CollisionBoundsColorGammaB";
  static const char * k_pch_CollisionBounds_ColorGammaA_Int32 = "CollisionBoundsColorGammaA";
  static const char * k_pch_Camera_Section = "camera";
  static const char * k_pch_Camera_EnableCamera_Bool = "enableCamera";
  static const char * k_pch_Camera_EnableCameraInDashboard_Bool = "enableCameraInDashboard";
  static const char * k_pch_Camera_EnableCameraForCollisionBounds_Bool = "enableCameraForCollisionBounds";
  static const char * k_pch_Camera_EnableCameraForRoomView_Bool = "enableCameraForRoomView";
  static const char * k_pch_Camera_BoundsColorGammaR_Int32 = "cameraBoundsColorGammaR";
  static const char * k_pch_Camera_BoundsColorGammaG_Int32 = "cameraBoundsColorGammaG";
  static const char * k_pch_Camera_BoundsColorGammaB_Int32 = "cameraBoundsColorGammaB";
  static const char * k_pch_Camera_BoundsColorGammaA_Int32 = "cameraBoundsColorGammaA";
  static const char * k_pch_Camera_BoundsStrength_Int32 = "cameraBoundsStrength";
  static const char * k_pch_audio_Section = "audio";
  static const char * k_pch_audio_OnPlaybackDevice_String = "onPlaybackDevice";
  static const char * k_pch_audio_OnRecordDevice_String = "onRecordDevice";
  static const char * k_pch_audio_OnPlaybackMirrorDevice_String = "onPlaybackMirrorDevice";
  static const char * k_pch_audio_OffPlaybackDevice_String = "offPlaybackDevice";
  static const char * k_pch_audio_OffRecordDevice_String = "offRecordDevice";
  static const char * k_pch_audio_VIVEHDMIGain = "viveHDMIGain";
  static const char * k_pch_Power_Section = "power";
  static const char * k_pch_Power_PowerOffOnExit_Bool = "powerOffOnExit";
  static const char * k_pch_Power_TurnOffScreensTimeout_Float = "turnOffScreensTimeout";
  static const char * k_pch_Power_TurnOffControllersTimeout_Float = "turnOffControllersTimeout";
  static const char * k_pch_Power_ReturnToWatchdogTimeout_Float = "returnToWatchdogTimeout";
  static const char * k_pch_Power_AutoLaunchSteamVROnButtonPress = "autoLaunchSteamVROnButtonPress";
  static const char * k_pch_Dashboard_Section = "dashboard";
  static const char * k_pch_Dashboard_EnableDashboard_Bool = "enableDashboard";
  static const char * k_pch_Dashboard_ArcadeMode_Bool = "arcadeMode";
  static const char * k_pch_modelskin_Section = "modelskins";
  static const char * IVRScreenshots_Version = "IVRScreenshots_001";
  static const char * IVRResources_Version = "IVRResources_001";
  
  // OpenVR Enums
  
  typedef enum EVREye
  {
  	EVREye_Eye_Left = 0,
  	EVREye_Eye_Right = 1,
  } EVREye;
  
  typedef enum EGraphicsAPIConvention
  {
  	EGraphicsAPIConvention_API_DirectX = 0,
  	EGraphicsAPIConvention_API_OpenGL = 1,
  } EGraphicsAPIConvention;
  
  typedef enum EColorSpace
  {
  	EColorSpace_ColorSpace_Auto = 0,
  	EColorSpace_ColorSpace_Gamma = 1,
  	EColorSpace_ColorSpace_Linear = 2,
  } EColorSpace;
  
  typedef enum ETrackingResult
  {
  	ETrackingResult_TrackingResult_Uninitialized = 1,
  	ETrackingResult_TrackingResult_Calibrating_InProgress = 100,
  	ETrackingResult_TrackingResult_Calibrating_OutOfRange = 101,
  	ETrackingResult_TrackingResult_Running_OK = 200,
  	ETrackingResult_TrackingResult_Running_OutOfRange = 201,
  } ETrackingResult;
  
  typedef enum ETrackedDeviceClass
  {
  	ETrackedDeviceClass_TrackedDeviceClass_Invalid = 0,
  	ETrackedDeviceClass_TrackedDeviceClass_HMD = 1,
  	ETrackedDeviceClass_TrackedDeviceClass_Controller = 2,
  	ETrackedDeviceClass_TrackedDeviceClass_TrackingReference = 4,
  	ETrackedDeviceClass_TrackedDeviceClass_Count = 5,
  	ETrackedDeviceClass_TrackedDeviceClass_Other = 1000,
  } ETrackedDeviceClass;
  
  typedef enum ETrackedControllerRole
  {
  	ETrackedControllerRole_TrackedControllerRole_Invalid = 0,
  	ETrackedControllerRole_TrackedControllerRole_LeftHand = 1,
  	ETrackedControllerRole_TrackedControllerRole_RightHand = 2,
  } ETrackedControllerRole;
  
  typedef enum ETrackingUniverseOrigin
  {
  	ETrackingUniverseOrigin_TrackingUniverseSeated = 0,
  	ETrackingUniverseOrigin_TrackingUniverseStanding = 1,
  	ETrackingUniverseOrigin_TrackingUniverseRawAndUncalibrated = 2,
  } ETrackingUniverseOrigin;
  
  typedef enum ETrackedDeviceProperty
  {
  	ETrackedDeviceProperty_Prop_TrackingSystemName_String = 1000,
  	ETrackedDeviceProperty_Prop_ModelNumber_String = 1001,
  	ETrackedDeviceProperty_Prop_SerialNumber_String = 1002,
  	ETrackedDeviceProperty_Prop_RenderModelName_String = 1003,
  	ETrackedDeviceProperty_Prop_WillDriftInYaw_Bool = 1004,
  	ETrackedDeviceProperty_Prop_ManufacturerName_String = 1005,
  	ETrackedDeviceProperty_Prop_TrackingFirmwareVersion_String = 1006,
  	ETrackedDeviceProperty_Prop_HardwareRevision_String = 1007,
  	ETrackedDeviceProperty_Prop_AllWirelessDongleDescriptions_String = 1008,
  	ETrackedDeviceProperty_Prop_ConnectedWirelessDongle_String = 1009,
  	ETrackedDeviceProperty_Prop_DeviceIsWireless_Bool = 1010,
  	ETrackedDeviceProperty_Prop_DeviceIsCharging_Bool = 1011,
  	ETrackedDeviceProperty_Prop_DeviceBatteryPercentage_Float = 1012,
  	ETrackedDeviceProperty_Prop_StatusDisplayTransform_Matrix34 = 1013,
  	ETrackedDeviceProperty_Prop_Firmware_UpdateAvailable_Bool = 1014,
  	ETrackedDeviceProperty_Prop_Firmware_ManualUpdate_Bool = 1015,
  	ETrackedDeviceProperty_Prop_Firmware_ManualUpdateURL_String = 1016,
  	ETrackedDeviceProperty_Prop_HardwareRevision_Uint64 = 1017,
  	ETrackedDeviceProperty_Prop_FirmwareVersion_Uint64 = 1018,
  	ETrackedDeviceProperty_Prop_FPGAVersion_Uint64 = 1019,
  	ETrackedDeviceProperty_Prop_VRCVersion_Uint64 = 1020,
  	ETrackedDeviceProperty_Prop_RadioVersion_Uint64 = 1021,
  	ETrackedDeviceProperty_Prop_DongleVersion_Uint64 = 1022,
  	ETrackedDeviceProperty_Prop_BlockServerShutdown_Bool = 1023,
  	ETrackedDeviceProperty_Prop_CanUnifyCoordinateSystemWithHmd_Bool = 1024,
  	ETrackedDeviceProperty_Prop_ContainsProximitySensor_Bool = 1025,
  	ETrackedDeviceProperty_Prop_DeviceProvidesBatteryStatus_Bool = 1026,
  	ETrackedDeviceProperty_Prop_DeviceCanPowerOff_Bool = 1027,
  	ETrackedDeviceProperty_Prop_Firmware_ProgrammingTarget_String = 1028,
  	ETrackedDeviceProperty_Prop_DeviceClass_Int32 = 1029,
  	ETrackedDeviceProperty_Prop_HasCamera_Bool = 1030,
  	ETrackedDeviceProperty_Prop_DriverVersion_String = 1031,
  	ETrackedDeviceProperty_Prop_Firmware_ForceUpdateRequired_Bool = 1032,
  	ETrackedDeviceProperty_Prop_ReportsTimeSinceVSync_Bool = 2000,
  	ETrackedDeviceProperty_Prop_SecondsFromVsyncToPhotons_Float = 2001,
  	ETrackedDeviceProperty_Prop_DisplayFrequency_Float = 2002,
  	ETrackedDeviceProperty_Prop_UserIpdMeters_Float = 2003,
  	ETrackedDeviceProperty_Prop_CurrentUniverseId_Uint64 = 2004,
  	ETrackedDeviceProperty_Prop_PreviousUniverseId_Uint64 = 2005,
  	ETrackedDeviceProperty_Prop_DisplayFirmwareVersion_Uint64 = 2006,
  	ETrackedDeviceProperty_Prop_IsOnDesktop_Bool = 2007,
  	ETrackedDeviceProperty_Prop_DisplayMCType_Int32 = 2008,
  	ETrackedDeviceProperty_Prop_DisplayMCOffset_Float = 2009,
  	ETrackedDeviceProperty_Prop_DisplayMCScale_Float = 2010,
  	ETrackedDeviceProperty_Prop_EdidVendorID_Int32 = 2011,
  	ETrackedDeviceProperty_Prop_DisplayMCImageLeft_String = 2012,
  	ETrackedDeviceProperty_Prop_DisplayMCImageRight_String = 2013,
  	ETrackedDeviceProperty_Prop_DisplayGCBlackClamp_Float = 2014,
  	ETrackedDeviceProperty_Prop_EdidProductID_Int32 = 2015,
  	ETrackedDeviceProperty_Prop_CameraToHeadTransform_Matrix34 = 2016,
  	ETrackedDeviceProperty_Prop_DisplayGCType_Int32 = 2017,
  	ETrackedDeviceProperty_Prop_DisplayGCOffset_Float = 2018,
  	ETrackedDeviceProperty_Prop_DisplayGCScale_Float = 2019,
  	ETrackedDeviceProperty_Prop_DisplayGCPrescale_Float = 2020,
  	ETrackedDeviceProperty_Prop_DisplayGCImage_String = 2021,
  	ETrackedDeviceProperty_Prop_LensCenterLeftU_Float = 2022,
  	ETrackedDeviceProperty_Prop_LensCenterLeftV_Float = 2023,
  	ETrackedDeviceProperty_Prop_LensCenterRightU_Float = 2024,
  	ETrackedDeviceProperty_Prop_LensCenterRightV_Float = 2025,
  	ETrackedDeviceProperty_Prop_UserHeadToEyeDepthMeters_Float = 2026,
  	ETrackedDeviceProperty_Prop_CameraFirmwareVersion_Uint64 = 2027,
  	ETrackedDeviceProperty_Prop_CameraFirmwareDescription_String = 2028,
  	ETrackedDeviceProperty_Prop_DisplayFPGAVersion_Uint64 = 2029,
  	ETrackedDeviceProperty_Prop_DisplayBootloaderVersion_Uint64 = 2030,
  	ETrackedDeviceProperty_Prop_DisplayHardwareVersion_Uint64 = 2031,
  	ETrackedDeviceProperty_Prop_AudioFirmwareVersion_Uint64 = 2032,
  	ETrackedDeviceProperty_Prop_CameraCompatibilityMode_Int32 = 2033,
  	ETrackedDeviceProperty_Prop_ScreenshotHorizontalFieldOfViewDegrees_Float = 2034,
  	ETrackedDeviceProperty_Prop_ScreenshotVerticalFieldOfViewDegrees_Float = 2035,
  	ETrackedDeviceProperty_Prop_DisplaySuppressed_Bool = 2036,
  	ETrackedDeviceProperty_Prop_AttachedDeviceId_String = 3000,
  	ETrackedDeviceProperty_Prop_SupportedButtons_Uint64 = 3001,
  	ETrackedDeviceProperty_Prop_Axis0Type_Int32 = 3002,
  	ETrackedDeviceProperty_Prop_Axis1Type_Int32 = 3003,
  	ETrackedDeviceProperty_Prop_Axis2Type_Int32 = 3004,
  	ETrackedDeviceProperty_Prop_Axis3Type_Int32 = 3005,
  	ETrackedDeviceProperty_Prop_Axis4Type_Int32 = 3006,
  	ETrackedDeviceProperty_Prop_ControllerRoleHint_Int32 = 3007,
  	ETrackedDeviceProperty_Prop_FieldOfViewLeftDegrees_Float = 4000,
  	ETrackedDeviceProperty_Prop_FieldOfViewRightDegrees_Float = 4001,
  	ETrackedDeviceProperty_Prop_FieldOfViewTopDegrees_Float = 4002,
  	ETrackedDeviceProperty_Prop_FieldOfViewBottomDegrees_Float = 4003,
  	ETrackedDeviceProperty_Prop_TrackingRangeMinimumMeters_Float = 4004,
  	ETrackedDeviceProperty_Prop_TrackingRangeMaximumMeters_Float = 4005,
  	ETrackedDeviceProperty_Prop_ModeLabel_String = 4006,
  	ETrackedDeviceProperty_Prop_IconPathName_String = 5000,
  	ETrackedDeviceProperty_Prop_NamedIconPathDeviceOff_String = 5001,
  	ETrackedDeviceProperty_Prop_NamedIconPathDeviceSearching_String = 5002,
  	ETrackedDeviceProperty_Prop_NamedIconPathDeviceSearchingAlert_String = 5003,
  	ETrackedDeviceProperty_Prop_NamedIconPathDeviceReady_String = 5004,
  	ETrackedDeviceProperty_Prop_NamedIconPathDeviceReadyAlert_String = 5005,
  	ETrackedDeviceProperty_Prop_NamedIconPathDeviceNotReady_String = 5006,
  	ETrackedDeviceProperty_Prop_NamedIconPathDeviceStandby_String = 5007,
  	ETrackedDeviceProperty_Prop_NamedIconPathDeviceAlertLow_String = 5008,
  	ETrackedDeviceProperty_Prop_VendorSpecific_Reserved_Start = 10000,
  	ETrackedDeviceProperty_Prop_VendorSpecific_Reserved_End = 10999,
  } ETrackedDeviceProperty;
  
  typedef enum ETrackedPropertyError
  {
  	ETrackedPropertyError_TrackedProp_Success = 0,
  	ETrackedPropertyError_TrackedProp_WrongDataType = 1,
  	ETrackedPropertyError_TrackedProp_WrongDeviceClass = 2,
  	ETrackedPropertyError_TrackedProp_BufferTooSmall = 3,
  	ETrackedPropertyError_TrackedProp_UnknownProperty = 4,
  	ETrackedPropertyError_TrackedProp_InvalidDevice = 5,
  	ETrackedPropertyError_TrackedProp_CouldNotContactServer = 6,
  	ETrackedPropertyError_TrackedProp_ValueNotProvidedByDevice = 7,
  	ETrackedPropertyError_TrackedProp_StringExceedsMaximumLength = 8,
  	ETrackedPropertyError_TrackedProp_NotYetAvailable = 9,
  } ETrackedPropertyError;
  
  typedef enum EVRSubmitFlags
  {
  	EVRSubmitFlags_Submit_Default = 0,
  	EVRSubmitFlags_Submit_LensDistortionAlreadyApplied = 1,
  	EVRSubmitFlags_Submit_GlRenderBuffer = 2,
  	EVRSubmitFlags_Submit_VulkanTexture = 4,
  } EVRSubmitFlags;
  
  typedef enum EVRState
  {
  	EVRState_VRState_Undefined = -1,
  	EVRState_VRState_Off = 0,
  	EVRState_VRState_Searching = 1,
  	EVRState_VRState_Searching_Alert = 2,
  	EVRState_VRState_Ready = 3,
  	EVRState_VRState_Ready_Alert = 4,
  	EVRState_VRState_NotReady = 5,
  	EVRState_VRState_Standby = 6,
  	EVRState_VRState_Ready_Alert_Low = 7,
  } EVRState;
  
  typedef enum EVREventType
  {
  	EVREventType_VREvent_None = 0,
  	EVREventType_VREvent_TrackedDeviceActivated = 100,
  	EVREventType_VREvent_TrackedDeviceDeactivated = 101,
  	EVREventType_VREvent_TrackedDeviceUpdated = 102,
  	EVREventType_VREvent_TrackedDeviceUserInteractionStarted = 103,
  	EVREventType_VREvent_TrackedDeviceUserInteractionEnded = 104,
  	EVREventType_VREvent_IpdChanged = 105,
  	EVREventType_VREvent_EnterStandbyMode = 106,
  	EVREventType_VREvent_LeaveStandbyMode = 107,
  	EVREventType_VREvent_TrackedDeviceRoleChanged = 108,
  	EVREventType_VREvent_WatchdogWakeUpRequested = 109,
  	EVREventType_VREvent_LensDistortionChanged = 110,
  	EVREventType_VREvent_ButtonPress = 200,
  	EVREventType_VREvent_ButtonUnpress = 201,
  	EVREventType_VREvent_ButtonTouch = 202,
  	EVREventType_VREvent_ButtonUntouch = 203,
  	EVREventType_VREvent_MouseMove = 300,
  	EVREventType_VREvent_MouseButtonDown = 301,
  	EVREventType_VREvent_MouseButtonUp = 302,
  	EVREventType_VREvent_FocusEnter = 303,
  	EVREventType_VREvent_FocusLeave = 304,
  	EVREventType_VREvent_Scroll = 305,
  	EVREventType_VREvent_TouchPadMove = 306,
  	EVREventType_VREvent_OverlayFocusChanged = 307,
  	EVREventType_VREvent_InputFocusCaptured = 400,
  	EVREventType_VREvent_InputFocusReleased = 401,
  	EVREventType_VREvent_SceneFocusLost = 402,
  	EVREventType_VREvent_SceneFocusGained = 403,
  	EVREventType_VREvent_SceneApplicationChanged = 404,
  	EVREventType_VREvent_SceneFocusChanged = 405,
  	EVREventType_VREvent_InputFocusChanged = 406,
  	EVREventType_VREvent_SceneApplicationSecondaryRenderingStarted = 407,
  	EVREventType_VREvent_HideRenderModels = 410,
  	EVREventType_VREvent_ShowRenderModels = 411,
  	EVREventType_VREvent_OverlayShown = 500,
  	EVREventType_VREvent_OverlayHidden = 501,
  	EVREventType_VREvent_DashboardActivated = 502,
  	EVREventType_VREvent_DashboardDeactivated = 503,
  	EVREventType_VREvent_DashboardThumbSelected = 504,
  	EVREventType_VREvent_DashboardRequested = 505,
  	EVREventType_VREvent_ResetDashboard = 506,
  	EVREventType_VREvent_RenderToast = 507,
  	EVREventType_VREvent_ImageLoaded = 508,
  	EVREventType_VREvent_ShowKeyboard = 509,
  	EVREventType_VREvent_HideKeyboard = 510,
  	EVREventType_VREvent_OverlayGamepadFocusGained = 511,
  	EVREventType_VREvent_OverlayGamepadFocusLost = 512,
  	EVREventType_VREvent_OverlaySharedTextureChanged = 513,
  	EVREventType_VREvent_DashboardGuideButtonDown = 514,
  	EVREventType_VREvent_DashboardGuideButtonUp = 515,
  	EVREventType_VREvent_ScreenshotTriggered = 516,
  	EVREventType_VREvent_ImageFailed = 517,
  	EVREventType_VREvent_DashboardOverlayCreated = 518,
  	EVREventType_VREvent_RequestScreenshot = 520,
  	EVREventType_VREvent_ScreenshotTaken = 521,
  	EVREventType_VREvent_ScreenshotFailed = 522,
  	EVREventType_VREvent_SubmitScreenshotToDashboard = 523,
  	EVREventType_VREvent_ScreenshotProgressToDashboard = 524,
  	EVREventType_VREvent_Notification_Shown = 600,
  	EVREventType_VREvent_Notification_Hidden = 601,
  	EVREventType_VREvent_Notification_BeginInteraction = 602,
  	EVREventType_VREvent_Notification_Destroyed = 603,
  	EVREventType_VREvent_Quit = 700,
  	EVREventType_VREvent_ProcessQuit = 701,
  	EVREventType_VREvent_QuitAborted_UserPrompt = 702,
  	EVREventType_VREvent_QuitAcknowledged = 703,
  	EVREventType_VREvent_DriverRequestedQuit = 704,
  	EVREventType_VREvent_ChaperoneDataHasChanged = 800,
  	EVREventType_VREvent_ChaperoneUniverseHasChanged = 801,
  	EVREventType_VREvent_ChaperoneTempDataHasChanged = 802,
  	EVREventType_VREvent_ChaperoneSettingsHaveChanged = 803,
  	EVREventType_VREvent_SeatedZeroPoseReset = 804,
  	EVREventType_VREvent_AudioSettingsHaveChanged = 820,
  	EVREventType_VREvent_BackgroundSettingHasChanged = 850,
  	EVREventType_VREvent_CameraSettingsHaveChanged = 851,
  	EVREventType_VREvent_ReprojectionSettingHasChanged = 852,
  	EVREventType_VREvent_ModelSkinSettingsHaveChanged = 853,
  	EVREventType_VREvent_EnvironmentSettingsHaveChanged = 854,
  	EVREventType_VREvent_PowerSettingsHaveChanged = 855,
  	EVREventType_VREvent_StatusUpdate = 900,
  	EVREventType_VREvent_MCImageUpdated = 1000,
  	EVREventType_VREvent_FirmwareUpdateStarted = 1100,
  	EVREventType_VREvent_FirmwareUpdateFinished = 1101,
  	EVREventType_VREvent_KeyboardClosed = 1200,
  	EVREventType_VREvent_KeyboardCharInput = 1201,
  	EVREventType_VREvent_KeyboardDone = 1202,
  	EVREventType_VREvent_ApplicationTransitionStarted = 1300,
  	EVREventType_VREvent_ApplicationTransitionAborted = 1301,
  	EVREventType_VREvent_ApplicationTransitionNewAppStarted = 1302,
  	EVREventType_VREvent_ApplicationListUpdated = 1303,
  	EVREventType_VREvent_ApplicationMimeTypeLoad = 1304,
  	EVREventType_VREvent_Compositor_MirrorWindowShown = 1400,
  	EVREventType_VREvent_Compositor_MirrorWindowHidden = 1401,
  	EVREventType_VREvent_Compositor_ChaperoneBoundsShown = 1410,
  	EVREventType_VREvent_Compositor_ChaperoneBoundsHidden = 1411,
  	EVREventType_VREvent_TrackedCamera_StartVideoStream = 1500,
  	EVREventType_VREvent_TrackedCamera_StopVideoStream = 1501,
  	EVREventType_VREvent_TrackedCamera_PauseVideoStream = 1502,
  	EVREventType_VREvent_TrackedCamera_ResumeVideoStream = 1503,
  	EVREventType_VREvent_TrackedCamera_EditingSurface = 1550,
  	EVREventType_VREvent_PerformanceTest_EnableCapture = 1600,
  	EVREventType_VREvent_PerformanceTest_DisableCapture = 1601,
  	EVREventType_VREvent_PerformanceTest_FidelityLevel = 1602,
  	EVREventType_VREvent_VendorSpecific_Reserved_Start = 10000,
  	EVREventType_VREvent_VendorSpecific_Reserved_End = 19999,
  } EVREventType;
  
  typedef enum EDeviceActivityLevel
  {
  	EDeviceActivityLevel_k_EDeviceActivityLevel_Unknown = -1,
  	EDeviceActivityLevel_k_EDeviceActivityLevel_Idle = 0,
  	EDeviceActivityLevel_k_EDeviceActivityLevel_UserInteraction = 1,
  	EDeviceActivityLevel_k_EDeviceActivityLevel_UserInteraction_Timeout = 2,
  	EDeviceActivityLevel_k_EDeviceActivityLevel_Standby = 3,
  } EDeviceActivityLevel;
  
  typedef enum EVRButtonId
  {
  	EVRButtonId_k_EButton_System = 0,
  	EVRButtonId_k_EButton_ApplicationMenu = 1,
  	EVRButtonId_k_EButton_Grip = 2,
  	EVRButtonId_k_EButton_DPad_Left = 3,
  	EVRButtonId_k_EButton_DPad_Up = 4,
  	EVRButtonId_k_EButton_DPad_Right = 5,
  	EVRButtonId_k_EButton_DPad_Down = 6,
  	EVRButtonId_k_EButton_A = 7,
  	EVRButtonId_k_EButton_ProximitySensor = 31,
  	EVRButtonId_k_EButton_Axis0 = 32,
  	EVRButtonId_k_EButton_Axis1 = 33,
  	EVRButtonId_k_EButton_Axis2 = 34,
  	EVRButtonId_k_EButton_Axis3 = 35,
  	EVRButtonId_k_EButton_Axis4 = 36,
  	EVRButtonId_k_EButton_SteamVR_Touchpad = 32,
  	EVRButtonId_k_EButton_SteamVR_Trigger = 33,
  	EVRButtonId_k_EButton_Dashboard_Back = 2,
  	EVRButtonId_k_EButton_Max = 64,
  } EVRButtonId;
  
  typedef enum EVRMouseButton
  {
  	EVRMouseButton_VRMouseButton_Left = 1,
  	EVRMouseButton_VRMouseButton_Right = 2,
  	EVRMouseButton_VRMouseButton_Middle = 4,
  } EVRMouseButton;
  
  typedef enum EVRControllerAxisType
  {
  	EVRControllerAxisType_k_eControllerAxis_None = 0,
  	EVRControllerAxisType_k_eControllerAxis_TrackPad = 1,
  	EVRControllerAxisType_k_eControllerAxis_Joystick = 2,
  	EVRControllerAxisType_k_eControllerAxis_Trigger = 3,
  } EVRControllerAxisType;
  
  typedef enum EVRControllerEventOutputType
  {
  	EVRControllerEventOutputType_ControllerEventOutput_OSEvents = 0,
  	EVRControllerEventOutputType_ControllerEventOutput_VREvents = 1,
  } EVRControllerEventOutputType;
  
  typedef enum ECollisionBoundsStyle
  {
  	ECollisionBoundsStyle_COLLISION_BOUNDS_STYLE_BEGINNER = 0,
  	ECollisionBoundsStyle_COLLISION_BOUNDS_STYLE_INTERMEDIATE = 1,
  	ECollisionBoundsStyle_COLLISION_BOUNDS_STYLE_SQUARES = 2,
  	ECollisionBoundsStyle_COLLISION_BOUNDS_STYLE_ADVANCED = 3,
  	ECollisionBoundsStyle_COLLISION_BOUNDS_STYLE_NONE = 4,
  	ECollisionBoundsStyle_COLLISION_BOUNDS_STYLE_COUNT = 5,
  } ECollisionBoundsStyle;
  
  typedef enum EVROverlayError
  {
  	EVROverlayError_VROverlayError_None = 0,
  	EVROverlayError_VROverlayError_UnknownOverlay = 10,
  	EVROverlayError_VROverlayError_InvalidHandle = 11,
  	EVROverlayError_VROverlayError_PermissionDenied = 12,
  	EVROverlayError_VROverlayError_OverlayLimitExceeded = 13,
  	EVROverlayError_VROverlayError_WrongVisibilityType = 14,
  	EVROverlayError_VROverlayError_KeyTooLong = 15,
  	EVROverlayError_VROverlayError_NameTooLong = 16,
  	EVROverlayError_VROverlayError_KeyInUse = 17,
  	EVROverlayError_VROverlayError_WrongTransformType = 18,
  	EVROverlayError_VROverlayError_InvalidTrackedDevice = 19,
  	EVROverlayError_VROverlayError_InvalidParameter = 20,
  	EVROverlayError_VROverlayError_ThumbnailCantBeDestroyed = 21,
  	EVROverlayError_VROverlayError_ArrayTooSmall = 22,
  	EVROverlayError_VROverlayError_RequestFailed = 23,
  	EVROverlayError_VROverlayError_InvalidTexture = 24,
  	EVROverlayError_VROverlayError_UnableToLoadFile = 25,
  	EVROverlayError_VROverlayError_KeyboardAlreadyInUse = 26,
  	EVROverlayError_VROverlayError_NoNeighbor = 27,
  } EVROverlayError;
  
  typedef enum EVRApplicationType
  {
  	EVRApplicationType_VRApplication_Other = 0,
  	EVRApplicationType_VRApplication_Scene = 1,
  	EVRApplicationType_VRApplication_Overlay = 2,
  	EVRApplicationType_VRApplication_Background = 3,
  	EVRApplicationType_VRApplication_Utility = 4,
  	EVRApplicationType_VRApplication_VRMonitor = 5,
  	EVRApplicationType_VRApplication_SteamWatchdog = 6,
  	EVRApplicationType_VRApplication_Max = 7,
  } EVRApplicationType;
  
  typedef enum EVRFirmwareError
  {
  	EVRFirmwareError_VRFirmwareError_None = 0,
  	EVRFirmwareError_VRFirmwareError_Success = 1,
  	EVRFirmwareError_VRFirmwareError_Fail = 2,
  } EVRFirmwareError;
  
  typedef enum EVRNotificationError
  {
  	EVRNotificationError_VRNotificationError_OK = 0,
  	EVRNotificationError_VRNotificationError_InvalidNotificationId = 100,
  	EVRNotificationError_VRNotificationError_NotificationQueueFull = 101,
  	EVRNotificationError_VRNotificationError_InvalidOverlayHandle = 102,
  	EVRNotificationError_VRNotificationError_SystemWithUserValueAlreadyExists = 103,
  } EVRNotificationError;
  
  typedef enum EVRInitError
  {
  	EVRInitError_VRInitError_None = 0,
  	EVRInitError_VRInitError_Unknown = 1,
  	EVRInitError_VRInitError_Init_InstallationNotFound = 100,
  	EVRInitError_VRInitError_Init_InstallationCorrupt = 101,
  	EVRInitError_VRInitError_Init_VRClientDLLNotFound = 102,
  	EVRInitError_VRInitError_Init_FileNotFound = 103,
  	EVRInitError_VRInitError_Init_FactoryNotFound = 104,
  	EVRInitError_VRInitError_Init_InterfaceNotFound = 105,
  	EVRInitError_VRInitError_Init_InvalidInterface = 106,
  	EVRInitError_VRInitError_Init_UserConfigDirectoryInvalid = 107,
  	EVRInitError_VRInitError_Init_HmdNotFound = 108,
  	EVRInitError_VRInitError_Init_NotInitialized = 109,
  	EVRInitError_VRInitError_Init_PathRegistryNotFound = 110,
  	EVRInitError_VRInitError_Init_NoConfigPath = 111,
  	EVRInitError_VRInitError_Init_NoLogPath = 112,
  	EVRInitError_VRInitError_Init_PathRegistryNotWritable = 113,
  	EVRInitError_VRInitError_Init_AppInfoInitFailed = 114,
  	EVRInitError_VRInitError_Init_Retry = 115,
  	EVRInitError_VRInitError_Init_InitCanceledByUser = 116,
  	EVRInitError_VRInitError_Init_AnotherAppLaunching = 117,
  	EVRInitError_VRInitError_Init_SettingsInitFailed = 118,
  	EVRInitError_VRInitError_Init_ShuttingDown = 119,
  	EVRInitError_VRInitError_Init_TooManyObjects = 120,
  	EVRInitError_VRInitError_Init_NoServerForBackgroundApp = 121,
  	EVRInitError_VRInitError_Init_NotSupportedWithCompositor = 122,
  	EVRInitError_VRInitError_Init_NotAvailableToUtilityApps = 123,
  	EVRInitError_VRInitError_Init_Internal = 124,
  	EVRInitError_VRInitError_Init_HmdDriverIdIsNone = 125,
  	EVRInitError_VRInitError_Init_HmdNotFoundPresenceFailed = 126,
  	EVRInitError_VRInitError_Init_VRMonitorNotFound = 127,
  	EVRInitError_VRInitError_Init_VRMonitorStartupFailed = 128,
  	EVRInitError_VRInitError_Init_LowPowerWatchdogNotSupported = 129,
  	EVRInitError_VRInitError_Init_InvalidApplicationType = 130,
  	EVRInitError_VRInitError_Init_NotAvailableToWatchdogApps = 131,
  	EVRInitError_VRInitError_Init_WatchdogDisabledInSettings = 132,
  	EVRInitError_VRInitError_Driver_Failed = 200,
  	EVRInitError_VRInitError_Driver_Unknown = 201,
  	EVRInitError_VRInitError_Driver_HmdUnknown = 202,
  	EVRInitError_VRInitError_Driver_NotLoaded = 203,
  	EVRInitError_VRInitError_Driver_RuntimeOutOfDate = 204,
  	EVRInitError_VRInitError_Driver_HmdInUse = 205,
  	EVRInitError_VRInitError_Driver_NotCalibrated = 206,
  	EVRInitError_VRInitError_Driver_CalibrationInvalid = 207,
  	EVRInitError_VRInitError_Driver_HmdDisplayNotFound = 208,
  	EVRInitError_VRInitError_Driver_TrackedDeviceInterfaceUnknown = 209,
  	EVRInitError_VRInitError_Driver_HmdDriverIdOutOfBounds = 211,
  	EVRInitError_VRInitError_Driver_HmdDisplayMirrored = 212,
  	EVRInitError_VRInitError_IPC_ServerInitFailed = 300,
  	EVRInitError_VRInitError_IPC_ConnectFailed = 301,
  	EVRInitError_VRInitError_IPC_SharedStateInitFailed = 302,
  	EVRInitError_VRInitError_IPC_CompositorInitFailed = 303,
  	EVRInitError_VRInitError_IPC_MutexInitFailed = 304,
  	EVRInitError_VRInitError_IPC_Failed = 305,
  	EVRInitError_VRInitError_IPC_CompositorConnectFailed = 306,
  	EVRInitError_VRInitError_IPC_CompositorInvalidConnectResponse = 307,
  	EVRInitError_VRInitError_IPC_ConnectFailedAfterMultipleAttempts = 308,
  	EVRInitError_VRInitError_Compositor_Failed = 400,
  	EVRInitError_VRInitError_Compositor_D3D11HardwareRequired = 401,
  	EVRInitError_VRInitError_Compositor_FirmwareRequiresUpdate = 402,
  	EVRInitError_VRInitError_Compositor_OverlayInitFailed = 403,
  	EVRInitError_VRInitError_Compositor_ScreenshotsInitFailed = 404,
  	EVRInitError_VRInitError_VendorSpecific_UnableToConnectToOculusRuntime = 1000,
  	EVRInitError_VRInitError_VendorSpecific_HmdFound_CantOpenDevice = 1101,
  	EVRInitError_VRInitError_VendorSpecific_HmdFound_UnableToRequestConfigStart = 1102,
  	EVRInitError_VRInitError_VendorSpecific_HmdFound_NoStoredConfig = 1103,
  	EVRInitError_VRInitError_VendorSpecific_HmdFound_ConfigTooBig = 1104,
  	EVRInitError_VRInitError_VendorSpecific_HmdFound_ConfigTooSmall = 1105,
  	EVRInitError_VRInitError_VendorSpecific_HmdFound_UnableToInitZLib = 1106,
  	EVRInitError_VRInitError_VendorSpecific_HmdFound_CantReadFirmwareVersion = 1107,
  	EVRInitError_VRInitError_VendorSpecific_HmdFound_UnableToSendUserDataStart = 1108,
  	EVRInitError_VRInitError_VendorSpecific_HmdFound_UnableToGetUserDataStart = 1109,
  	EVRInitError_VRInitError_VendorSpecific_HmdFound_UnableToGetUserDataNext = 1110,
  	EVRInitError_VRInitError_VendorSpecific_HmdFound_UserDataAddressRange = 1111,
  	EVRInitError_VRInitError_VendorSpecific_HmdFound_UserDataError = 1112,
  	EVRInitError_VRInitError_VendorSpecific_HmdFound_ConfigFailedSanityCheck = 1113,
  	EVRInitError_VRInitError_Steam_SteamInstallationNotFound = 2000,
  } EVRInitError;
  
  typedef enum EVRScreenshotType
  {
  	EVRScreenshotType_VRScreenshotType_None = 0,
  	EVRScreenshotType_VRScreenshotType_Mono = 1,
  	EVRScreenshotType_VRScreenshotType_Stereo = 2,
  	EVRScreenshotType_VRScreenshotType_Cubemap = 3,
  	EVRScreenshotType_VRScreenshotType_MonoPanorama = 4,
  	EVRScreenshotType_VRScreenshotType_StereoPanorama = 5,
  } EVRScreenshotType;
  
  typedef enum EVRScreenshotPropertyFilenames
  {
  	EVRScreenshotPropertyFilenames_VRScreenshotPropertyFilenames_Preview = 0,
  	EVRScreenshotPropertyFilenames_VRScreenshotPropertyFilenames_VR = 1,
  } EVRScreenshotPropertyFilenames;
  
  typedef enum EVRTrackedCameraError
  {
  	EVRTrackedCameraError_VRTrackedCameraError_None = 0,
  	EVRTrackedCameraError_VRTrackedCameraError_OperationFailed = 100,
  	EVRTrackedCameraError_VRTrackedCameraError_InvalidHandle = 101,
  	EVRTrackedCameraError_VRTrackedCameraError_InvalidFrameHeaderVersion = 102,
  	EVRTrackedCameraError_VRTrackedCameraError_OutOfHandles = 103,
  	EVRTrackedCameraError_VRTrackedCameraError_IPCFailure = 104,
  	EVRTrackedCameraError_VRTrackedCameraError_NotSupportedForThisDevice = 105,
  	EVRTrackedCameraError_VRTrackedCameraError_SharedMemoryFailure = 106,
  	EVRTrackedCameraError_VRTrackedCameraError_FrameBufferingFailure = 107,
  	EVRTrackedCameraError_VRTrackedCameraError_StreamSetupFailure = 108,
  	EVRTrackedCameraError_VRTrackedCameraError_InvalidGLTextureId = 109,
  	EVRTrackedCameraError_VRTrackedCameraError_InvalidSharedTextureHandle = 110,
  	EVRTrackedCameraError_VRTrackedCameraError_FailedToGetGLTextureId = 111,
  	EVRTrackedCameraError_VRTrackedCameraError_SharedTextureFailure = 112,
  	EVRTrackedCameraError_VRTrackedCameraError_NoFrameAvailable = 113,
  	EVRTrackedCameraError_VRTrackedCameraError_InvalidArgument = 114,
  	EVRTrackedCameraError_VRTrackedCameraError_InvalidFrameBufferSize = 115,
  } EVRTrackedCameraError;
  
  typedef enum EVRTrackedCameraFrameType
  {
  	EVRTrackedCameraFrameType_VRTrackedCameraFrameType_Distorted = 0,
  	EVRTrackedCameraFrameType_VRTrackedCameraFrameType_Undistorted = 1,
  	EVRTrackedCameraFrameType_VRTrackedCameraFrameType_MaximumUndistorted = 2,
  	EVRTrackedCameraFrameType_MAX_CAMERA_FRAME_TYPES = 3,
  } EVRTrackedCameraFrameType;
  
  typedef enum EVRApplicationError
  {
  	EVRApplicationError_VRApplicationError_None = 0,
  	EVRApplicationError_VRApplicationError_AppKeyAlreadyExists = 100,
  	EVRApplicationError_VRApplicationError_NoManifest = 101,
  	EVRApplicationError_VRApplicationError_NoApplication = 102,
  	EVRApplicationError_VRApplicationError_InvalidIndex = 103,
  	EVRApplicationError_VRApplicationError_UnknownApplication = 104,
  	EVRApplicationError_VRApplicationError_IPCFailed = 105,
  	EVRApplicationError_VRApplicationError_ApplicationAlreadyRunning = 106,
  	EVRApplicationError_VRApplicationError_InvalidManifest = 107,
  	EVRApplicationError_VRApplicationError_InvalidApplication = 108,
  	EVRApplicationError_VRApplicationError_LaunchFailed = 109,
  	EVRApplicationError_VRApplicationError_ApplicationAlreadyStarting = 110,
  	EVRApplicationError_VRApplicationError_LaunchInProgress = 111,
  	EVRApplicationError_VRApplicationError_OldApplicationQuitting = 112,
  	EVRApplicationError_VRApplicationError_TransitionAborted = 113,
  	EVRApplicationError_VRApplicationError_IsTemplate = 114,
  	EVRApplicationError_VRApplicationError_BufferTooSmall = 200,
  	EVRApplicationError_VRApplicationError_PropertyNotSet = 201,
  	EVRApplicationError_VRApplicationError_UnknownProperty = 202,
  	EVRApplicationError_VRApplicationError_InvalidParameter = 203,
  } EVRApplicationError;
  
  typedef enum EVRApplicationProperty
  {
  	EVRApplicationProperty_VRApplicationProperty_Name_String = 0,
  	EVRApplicationProperty_VRApplicationProperty_LaunchType_String = 11,
  	EVRApplicationProperty_VRApplicationProperty_WorkingDirectory_String = 12,
  	EVRApplicationProperty_VRApplicationProperty_BinaryPath_String = 13,
  	EVRApplicationProperty_VRApplicationProperty_Arguments_String = 14,
  	EVRApplicationProperty_VRApplicationProperty_URL_String = 15,
  	EVRApplicationProperty_VRApplicationProperty_Description_String = 50,
  	EVRApplicationProperty_VRApplicationProperty_NewsURL_String = 51,
  	EVRApplicationProperty_VRApplicationProperty_ImagePath_String = 52,
  	EVRApplicationProperty_VRApplicationProperty_Source_String = 53,
  	EVRApplicationProperty_VRApplicationProperty_IsDashboardOverlay_Bool = 60,
  	EVRApplicationProperty_VRApplicationProperty_IsTemplate_Bool = 61,
  	EVRApplicationProperty_VRApplicationProperty_IsInstanced_Bool = 62,
  	EVRApplicationProperty_VRApplicationProperty_LastLaunchTime_Uint64 = 70,
  } EVRApplicationProperty;
  
  typedef enum EVRApplicationTransitionState
  {
  	EVRApplicationTransitionState_VRApplicationTransition_None = 0,
  	EVRApplicationTransitionState_VRApplicationTransition_OldAppQuitSent = 10,
  	EVRApplicationTransitionState_VRApplicationTransition_WaitingForExternalLaunch = 11,
  	EVRApplicationTransitionState_VRApplicationTransition_NewAppLaunched = 20,
  } EVRApplicationTransitionState;
  
  typedef enum ChaperoneCalibrationState
  {
  	ChaperoneCalibrationState_OK = 1,
  	ChaperoneCalibrationState_Warning = 100,
  	ChaperoneCalibrationState_Warning_BaseStationMayHaveMoved = 101,
  	ChaperoneCalibrationState_Warning_BaseStationRemoved = 102,
  	ChaperoneCalibrationState_Warning_SeatedBoundsInvalid = 103,
  	ChaperoneCalibrationState_Error = 200,
  	ChaperoneCalibrationState_Error_BaseStationUninitalized = 201,
  	ChaperoneCalibrationState_Error_BaseStationConflict = 202,
  	ChaperoneCalibrationState_Error_PlayAreaInvalid = 203,
  	ChaperoneCalibrationState_Error_CollisionBoundsInvalid = 204,
  } ChaperoneCalibrationState;
  
  typedef enum EChaperoneConfigFile
  {
  	EChaperoneConfigFile_Live = 1,
  	EChaperoneConfigFile_Temp = 2,
  } EChaperoneConfigFile;
  
  typedef enum EChaperoneImportFlags
  {
  	EChaperoneImportFlags_EChaperoneImport_BoundsOnly = 1,
  } EChaperoneImportFlags;
  
  typedef enum EVRCompositorError
  {
  	EVRCompositorError_VRCompositorError_None = 0,
  	EVRCompositorError_VRCompositorError_RequestFailed = 1,
  	EVRCompositorError_VRCompositorError_IncompatibleVersion = 100,
  	EVRCompositorError_VRCompositorError_DoNotHaveFocus = 101,
  	EVRCompositorError_VRCompositorError_InvalidTexture = 102,
  	EVRCompositorError_VRCompositorError_IsNotSceneApplication = 103,
  	EVRCompositorError_VRCompositorError_TextureIsOnWrongDevice = 104,
  	EVRCompositorError_VRCompositorError_TextureUsesUnsupportedFormat = 105,
  	EVRCompositorError_VRCompositorError_SharedTexturesNotSupported = 106,
  	EVRCompositorError_VRCompositorError_IndexOutOfRange = 107,
  } EVRCompositorError;
  
  typedef enum VROverlayInputMethod
  {
  	VROverlayInputMethod_None = 0,
  	VROverlayInputMethod_Mouse = 1,
  } VROverlayInputMethod;
  
  typedef enum VROverlayTransformType
  {
  	VROverlayTransformType_VROverlayTransform_Absolute = 0,
  	VROverlayTransformType_VROverlayTransform_TrackedDeviceRelative = 1,
  	VROverlayTransformType_VROverlayTransform_SystemOverlay = 2,
  	VROverlayTransformType_VROverlayTransform_TrackedComponent = 3,
  } VROverlayTransformType;
  
  typedef enum VROverlayFlags
  {
  	VROverlayFlags_None = 0,
  	VROverlayFlags_Curved = 1,
  	VROverlayFlags_RGSS4X = 2,
  	VROverlayFlags_NoDashboardTab = 3,
  	VROverlayFlags_AcceptsGamepadEvents = 4,
  	VROverlayFlags_ShowGamepadFocus = 5,
  	VROverlayFlags_SendVRScrollEvents = 6,
  	VROverlayFlags_SendVRTouchpadEvents = 7,
  	VROverlayFlags_ShowTouchPadScrollWheel = 8,
  	VROverlayFlags_TransferOwnershipToInternalProcess = 9,
  	VROverlayFlags_SideBySide_Parallel = 10,
  	VROverlayFlags_SideBySide_Crossed = 11,
  	VROverlayFlags_Panorama = 12,
  	VROverlayFlags_StereoPanorama = 13,
  	VROverlayFlags_SortWithNonSceneOverlays = 14,
  } VROverlayFlags;
  
  typedef enum EGamepadTextInputMode
  {
  	EGamepadTextInputMode_k_EGamepadTextInputModeNormal = 0,
  	EGamepadTextInputMode_k_EGamepadTextInputModePassword = 1,
  	EGamepadTextInputMode_k_EGamepadTextInputModeSubmit = 2,
  } EGamepadTextInputMode;
  
  typedef enum EGamepadTextInputLineMode
  {
  	EGamepadTextInputLineMode_k_EGamepadTextInputLineModeSingleLine = 0,
  	EGamepadTextInputLineMode_k_EGamepadTextInputLineModeMultipleLines = 1,
  } EGamepadTextInputLineMode;
  
  typedef enum EOverlayDirection
  {
  	EOverlayDirection_OverlayDirection_Up = 0,
  	EOverlayDirection_OverlayDirection_Down = 1,
  	EOverlayDirection_OverlayDirection_Left = 2,
  	EOverlayDirection_OverlayDirection_Right = 3,
  	EOverlayDirection_OverlayDirection_Count = 4,
  } EOverlayDirection;
  
  typedef enum EVRRenderModelError
  {
  	EVRRenderModelError_VRRenderModelError_None = 0,
  	EVRRenderModelError_VRRenderModelError_Loading = 100,
  	EVRRenderModelError_VRRenderModelError_NotSupported = 200,
  	EVRRenderModelError_VRRenderModelError_InvalidArg = 300,
  	EVRRenderModelError_VRRenderModelError_InvalidModel = 301,
  	EVRRenderModelError_VRRenderModelError_NoShapes = 302,
  	EVRRenderModelError_VRRenderModelError_MultipleShapes = 303,
  	EVRRenderModelError_VRRenderModelError_TooManyVertices = 304,
  	EVRRenderModelError_VRRenderModelError_MultipleTextures = 305,
  	EVRRenderModelError_VRRenderModelError_BufferTooSmall = 306,
  	EVRRenderModelError_VRRenderModelError_NotEnoughNormals = 307,
  	EVRRenderModelError_VRRenderModelError_NotEnoughTexCoords = 308,
  	EVRRenderModelError_VRRenderModelError_InvalidTexture = 400,
  } EVRRenderModelError;
  
  typedef enum EVRComponentProperty
  {
  	EVRComponentProperty_VRComponentProperty_IsStatic = 1,
  	EVRComponentProperty_VRComponentProperty_IsVisible = 2,
  	EVRComponentProperty_VRComponentProperty_IsTouched = 4,
  	EVRComponentProperty_VRComponentProperty_IsPressed = 8,
  	EVRComponentProperty_VRComponentProperty_IsScrolled = 16,
  } EVRComponentProperty;
  
  typedef enum EVRNotificationType
  {
  	EVRNotificationType_Transient = 0,
  	EVRNotificationType_Persistent = 1,
  	EVRNotificationType_Transient_SystemWithUserValue = 2,
  } EVRNotificationType;
  
  typedef enum EVRNotificationStyle
  {
  	EVRNotificationStyle_None = 0,
  	EVRNotificationStyle_Application = 100,
  	EVRNotificationStyle_Contact_Disabled = 200,
  	EVRNotificationStyle_Contact_Enabled = 201,
  	EVRNotificationStyle_Contact_Active = 202,
  } EVRNotificationStyle;
  
  typedef enum EVRSettingsError
  {
  	EVRSettingsError_VRSettingsError_None = 0,
  	EVRSettingsError_VRSettingsError_IPCFailed = 1,
  	EVRSettingsError_VRSettingsError_WriteFailed = 2,
  	EVRSettingsError_VRSettingsError_ReadFailed = 3,
  	EVRSettingsError_VRSettingsError_JsonParseFailed = 4,
  	EVRSettingsError_VRSettingsError_UnsetSettingHasNoDefault = 5,
  } EVRSettingsError;
  
  typedef enum EVRScreenshotError
  {
  	EVRScreenshotError_VRScreenshotError_None = 0,
  	EVRScreenshotError_VRScreenshotError_RequestFailed = 1,
  	EVRScreenshotError_VRScreenshotError_IncompatibleVersion = 100,
  	EVRScreenshotError_VRScreenshotError_NotFound = 101,
  	EVRScreenshotError_VRScreenshotError_BufferTooSmall = 102,
  	EVRScreenshotError_VRScreenshotError_ScreenshotAlreadyInProgress = 108,
  } EVRScreenshotError;
  
  
  // OpenVR typedefs
  
  typedef uint32_t TrackedDeviceIndex_t;
  typedef uint32_t VRNotificationId;
  typedef uint64_t VROverlayHandle_t;
  typedef void * glSharedTextureHandle_t;
  typedef int32_t glInt_t;
  typedef uint32_t glUInt_t;
  typedef uint64_t SharedTextureHandle_t;
  typedef uint32_t TrackedDeviceIndex_t;
  typedef uint64_t VROverlayHandle_t;
  typedef uint64_t TrackedCameraHandle_t;
  typedef uint32_t ScreenshotHandle_t;
  typedef uint32_t VRComponentProperties;
  typedef int32_t TextureID_t;
  typedef uint32_t VRNotificationId;
  typedef EVRInitError HmdError;
  typedef EVREye Hmd_Eye;
  typedef EGraphicsAPIConvention GraphicsAPIConvention;
  typedef EColorSpace ColorSpace;
  typedef ETrackingResult HmdTrackingResult;
  typedef ETrackedDeviceClass TrackedDeviceClass;
  typedef ETrackingUniverseOrigin TrackingUniverseOrigin;
  typedef ETrackedDeviceProperty TrackedDeviceProperty;
  typedef ETrackedPropertyError TrackedPropertyError;
  typedef EVRSubmitFlags VRSubmitFlags_t;
  typedef EVRState VRState_t;
  typedef ECollisionBoundsStyle CollisionBoundsStyle_t;
  typedef EVROverlayError VROverlayError;
  typedef EVRFirmwareError VRFirmwareError;
  typedef EVRCompositorError VRCompositorError;
  typedef EVRScreenshotError VRScreenshotsError;
  
  // OpenVR Structs
  
  typedef struct HmdMatrix34_t
  {
  	float m[3][4]; //float[3][4]
  } HmdMatrix34_t;
  
  typedef struct HmdMatrix44_t
  {
  	float m[4][4]; //float[4][4]
  } HmdMatrix44_t;
  
  typedef struct HmdVector3_t
  {
  	float v[3]; //float[3]
  } HmdVector3_t;
  
  typedef struct HmdVector4_t
  {
  	float v[4]; //float[4]
  } HmdVector4_t;
  
  typedef struct HmdVector3d_t
  {
  	double v[3]; //double[3]
  } HmdVector3d_t;
  
  typedef struct HmdVector2_t
  {
  	float v[2]; //float[2]
  } HmdVector2_t;
  
  typedef struct HmdQuaternion_t
  {
  	double w;
  	double x;
  	double y;
  	double z;
  } HmdQuaternion_t;
  
  typedef struct HmdColor_t
  {
  	float r;
  	float g;
  	float b;
  	float a;
  } HmdColor_t;
  
  typedef struct HmdQuad_t
  {
  	struct HmdVector3_t vCorners[4]; //struct vr::HmdVector3_t[4]
  } HmdQuad_t;
  
  typedef struct HmdRect2_t
  {
  	struct HmdVector2_t vTopLeft;
  	struct HmdVector2_t vBottomRight;
  } HmdRect2_t;
  
  typedef struct DistortionCoordinates_t
  {
  	float rfRed[2]; //float[2]
  	float rfGreen[2]; //float[2]
  	float rfBlue[2]; //float[2]
  } DistortionCoordinates_t;
  
  typedef struct Texture_t
  {
  	void * handle; // void *
  	enum EGraphicsAPIConvention eType;
  	enum EColorSpace eColorSpace;
  } Texture_t;
  
  typedef struct TrackedDevicePose_t
  {
  	struct HmdMatrix34_t mDeviceToAbsoluteTracking;
  	struct HmdVector3_t vVelocity;
  	struct HmdVector3_t vAngularVelocity;
  	enum ETrackingResult eTrackingResult;
  	bool bPoseIsValid;
  	bool bDeviceIsConnected;
  } TrackedDevicePose_t;
  
  typedef struct VRTextureBounds_t
  {
  	float uMin;
  	float vMin;
  	float uMax;
  	float vMax;
  } VRTextureBounds_t;
  
  typedef struct VulkanData_t
  {
  	uint64_t m_nImage;
  	struct VkDevice_T * m_pDevice; // struct VkDevice_T *
  	struct VkPhysicalDevice_T * m_pPhysicalDevice; // struct VkPhysicalDevice_T *
  	struct VkInstance_T * m_pInstance; // struct VkInstance_T *
  	struct VkQueue_T * m_pQueue; // struct VkQueue_T *
  	uint32_t m_nQueueFamilyIndex;
  	uint32_t m_nWidth;
  	uint32_t m_nHeight;
  	uint32_t m_nFormat;
  	uint32_t m_nSampleCount;
  } VulkanData_t;
  
  typedef struct VREvent_Controller_t
  {
  	uint32_t button;
  } VREvent_Controller_t;
  
  typedef struct VREvent_Mouse_t
  {
  	float x;
  	float y;
  	uint32_t button;
  } VREvent_Mouse_t;
  
  typedef struct VREvent_Scroll_t
  {
  	float xdelta;
  	float ydelta;
  	uint32_t repeatCount;
  } VREvent_Scroll_t;
  
  typedef struct VREvent_TouchPadMove_t
  {
  	bool bFingerDown;
  	float flSecondsFingerDown;
  	float fValueXFirst;
  	float fValueYFirst;
  	float fValueXRaw;
  	float fValueYRaw;
  } VREvent_TouchPadMove_t;
  
  typedef struct VREvent_Notification_t
  {
  	uint64_t ulUserValue;
  	uint32_t notificationId;
  } VREvent_Notification_t;
  
  typedef struct VREvent_Process_t
  {
  	uint32_t pid;
  	uint32_t oldPid;
  	bool bForced;
  } VREvent_Process_t;
  
  typedef struct VREvent_Overlay_t
  {
  	uint64_t overlayHandle;
  } VREvent_Overlay_t;
  
  typedef struct VREvent_Status_t
  {
  	uint32_t statusState;
  } VREvent_Status_t;
  
  typedef struct VREvent_Keyboard_t
  {
  	char * cNewInput[8]; //char[8]
  	uint64_t uUserValue;
  } VREvent_Keyboard_t;
  
  typedef struct VREvent_Ipd_t
  {
  	float ipdMeters;
  } VREvent_Ipd_t;
  
  typedef struct VREvent_Chaperone_t
  {
  	uint64_t m_nPreviousUniverse;
  	uint64_t m_nCurrentUniverse;
  } VREvent_Chaperone_t;
  
  typedef struct VREvent_Reserved_t
  {
  	uint64_t reserved0;
  	uint64_t reserved1;
  } VREvent_Reserved_t;
  
  typedef struct VREvent_PerformanceTest_t
  {
  	uint32_t m_nFidelityLevel;
  } VREvent_PerformanceTest_t;
  
  typedef struct VREvent_SeatedZeroPoseReset_t
  {
  	bool bResetBySystemMenu;
  } VREvent_SeatedZeroPoseReset_t;
  
  typedef struct VREvent_Screenshot_t
  {
  	uint32_t handle;
  	uint32_t type;
  } VREvent_Screenshot_t;
  
  typedef struct VREvent_ScreenshotProgress_t
  {
  	float progress;
  } VREvent_ScreenshotProgress_t;
  
  typedef struct VREvent_ApplicationLaunch_t
  {
  	uint32_t pid;
  	uint32_t unArgsHandle;
  } VREvent_ApplicationLaunch_t;
  
  typedef struct VREvent_EditingCameraSurface_t
  {
  	uint64_t overlayHandle;
  	uint32_t nVisualMode;
  } VREvent_EditingCameraSurface_t;
  
  typedef struct HiddenAreaMesh_t
  {
  	struct HmdVector2_t * pVertexData; // const struct vr::HmdVector2_t *
  	uint32_t unTriangleCount;
  } HiddenAreaMesh_t;
  
  typedef struct VRControllerAxis_t
  {
  	float x;
  	float y;
  } VRControllerAxis_t;
  
  typedef struct VRControllerState_t
  {
  	uint32_t unPacketNum;
  	uint64_t ulButtonPressed;
  	uint64_t ulButtonTouched;
  	struct VRControllerAxis_t rAxis[5]; //struct vr::VRControllerAxis_t[5]
  } VRControllerState_t;
  
  typedef struct Compositor_OverlaySettings
  {
  	uint32_t size;
  	bool curved;
  	bool antialias;
  	float scale;
  	float distance;
  	float alpha;
  	float uOffset;
  	float vOffset;
  	float uScale;
  	float vScale;
  	float gridDivs;
  	float gridWidth;
  	float gridScale;
  	struct HmdMatrix44_t transform;
  } Compositor_OverlaySettings;
  
  typedef struct CameraVideoStreamFrameHeader_t
  {
  	enum EVRTrackedCameraFrameType eFrameType;
  	uint32_t nWidth;
  	uint32_t nHeight;
  	uint32_t nBytesPerPixel;
  	uint32_t nFrameSequence;
  	struct TrackedDevicePose_t standingTrackedDevicePose;
  } CameraVideoStreamFrameHeader_t;
  
  typedef struct AppOverrideKeys_t
  {
  	char * pchKey; // const char *
  	char * pchValue; // const char *
  } AppOverrideKeys_t;
  
  typedef struct Compositor_FrameTiming
  {
  	uint32_t m_nSize;
  	uint32_t m_nFrameIndex;
  	uint32_t m_nNumFramePresents;
  	uint32_t m_nNumDroppedFrames;
  	uint32_t m_nReprojectionFlags;
  	double m_flSystemTimeInSeconds;
  	float m_flPreSubmitGpuMs;
  	float m_flPostSubmitGpuMs;
  	float m_flTotalRenderGpuMs;
  	float m_flCompositorRenderGpuMs;
  	float m_flCompositorRenderCpuMs;
  	float m_flCompositorIdleCpuMs;
  	float m_flClientFrameIntervalMs;
  	float m_flPresentCallCpuMs;
  	float m_flWaitForPresentCpuMs;
  	float m_flSubmitFrameMs;
  	float m_flWaitGetPosesCalledMs;
  	float m_flNewPosesReadyMs;
  	float m_flNewFrameReadyMs;
  	float m_flCompositorUpdateStartMs;
  	float m_flCompositorUpdateEndMs;
  	float m_flCompositorRenderStartMs;
  	TrackedDevicePose_t m_HmdPose;
  } Compositor_FrameTiming;
  
  typedef struct Compositor_CumulativeStats
  {
  	uint32_t m_nPid;
  	uint32_t m_nNumFramePresents;
  	uint32_t m_nNumDroppedFrames;
  	uint32_t m_nNumReprojectedFrames;
  	uint32_t m_nNumFramePresentsOnStartup;
  	uint32_t m_nNumDroppedFramesOnStartup;
  	uint32_t m_nNumReprojectedFramesOnStartup;
  	uint32_t m_nNumLoading;
  	uint32_t m_nNumFramePresentsLoading;
  	uint32_t m_nNumDroppedFramesLoading;
  	uint32_t m_nNumReprojectedFramesLoading;
  	uint32_t m_nNumTimedOut;
  	uint32_t m_nNumFramePresentsTimedOut;
  	uint32_t m_nNumDroppedFramesTimedOut;
  	uint32_t m_nNumReprojectedFramesTimedOut;
  } Compositor_CumulativeStats;
  
  typedef struct VROverlayIntersectionParams_t
  {
  	struct HmdVector3_t vSource;
  	struct HmdVector3_t vDirection;
  	enum ETrackingUniverseOrigin eOrigin;
  } VROverlayIntersectionParams_t;
  
  typedef struct VROverlayIntersectionResults_t
  {
  	struct HmdVector3_t vPoint;
  	struct HmdVector3_t vNormal;
  	struct HmdVector2_t vUVs;
  	float fDistance;
  } VROverlayIntersectionResults_t;
  
  typedef struct RenderModel_ComponentState_t
  {
  	struct HmdMatrix34_t mTrackingToComponentRenderModel;
  	struct HmdMatrix34_t mTrackingToComponentLocal;
  	VRComponentProperties uProperties;
  } RenderModel_ComponentState_t;
  
  typedef struct RenderModel_Vertex_t
  {
  	struct HmdVector3_t vPosition;
  	struct HmdVector3_t vNormal;
  	float rfTextureCoord[2]; //float[2]
  } RenderModel_Vertex_t;
  
  typedef struct RenderModel_TextureMap_t
  {
  	uint16_t unWidth;
  	uint16_t unHeight;
  	uint8_t * rubTextureMapData; // const uint8_t *
  } RenderModel_TextureMap_t;
  
  typedef struct RenderModel_t
  {
  	struct RenderModel_Vertex_t * rVertexData; // const struct vr::RenderModel_Vertex_t *
  	uint32_t unVertexCount;
  	uint16_t * rIndexData; // const uint16_t *
  	uint32_t unTriangleCount;
  	TextureID_t diffuseTextureId;
  } RenderModel_t;
  
  typedef struct RenderModel_ControllerMode_State_t
  {
  	bool bScrollWheelVisible;
  } RenderModel_ControllerMode_State_t;
  
  typedef struct NotificationBitmap_t
  {
  	void * m_pImageData; // void *
  	int32_t m_nWidth;
  	int32_t m_nHeight;
  	int32_t m_nBytesPerPixel;
  } NotificationBitmap_t;
  
  typedef struct COpenVRContext
  {
  	intptr_t m_pVRSystem; // class vr::IVRSystem *
  	intptr_t m_pVRChaperone; // class vr::IVRChaperone *
  	intptr_t m_pVRChaperoneSetup; // class vr::IVRChaperoneSetup *
  	intptr_t m_pVRCompositor; // class vr::IVRCompositor *
  	intptr_t m_pVROverlay; // class vr::IVROverlay *
  	intptr_t m_pVRResources; // class vr::IVRResources *
  	intptr_t m_pVRRenderModels; // class vr::IVRRenderModels *
  	intptr_t m_pVRExtendedDisplay; // class vr::IVRExtendedDisplay *
  	intptr_t m_pVRSettings; // class vr::IVRSettings *
  	intptr_t m_pVRApplications; // class vr::IVRApplications *
  	intptr_t m_pVRTrackedCamera; // class vr::IVRTrackedCamera *
  	intptr_t m_pVRScreenshots; // class vr::IVRScreenshots *
  } COpenVRContext;
  
  
  typedef union
  {
  	VREvent_Reserved_t reserved;
  	VREvent_Controller_t controller;
  	VREvent_Mouse_t mouse;
  	VREvent_Scroll_t scroll;
  	VREvent_Process_t process;
  	VREvent_Notification_t notification;
  	VREvent_Overlay_t overlay;
  	VREvent_Status_t status;
  	VREvent_Keyboard_t keyboard;
  	VREvent_Ipd_t ipd;
  	VREvent_Chaperone_t chaperone;
  	VREvent_PerformanceTest_t performanceTest;
  	VREvent_TouchPadMove_t touchPadMove;
  	VREvent_SeatedZeroPoseReset_t seatedZeroPoseReset;
  } VREvent_Data_t;
  
  /** An event posted by the server to all running applications */
  struct VREvent_t
  {
  	uint32_t eventType; // EVREventType enum
  	TrackedDeviceIndex_t trackedDeviceIndex;
  	float eventAgeSeconds;
  	// event data must be the end of the struct as its size is variable
  	VREvent_Data_t data;
  };
  
  
  // OpenVR Function Pointer Tables
  
  struct VR_IVRSystem_FnTable
  {
  	void (OPENVR_FNTABLE_CALLTYPE *GetRecommendedRenderTargetSize)(uint32_t * pnWidth, uint32_t * pnHeight);
  	struct HmdMatrix44_t (OPENVR_FNTABLE_CALLTYPE *GetProjectionMatrix)(EVREye eEye, float fNearZ, float fFarZ, EGraphicsAPIConvention eProjType);
  	void (OPENVR_FNTABLE_CALLTYPE *GetProjectionRaw)(EVREye eEye, float * pfLeft, float * pfRight, float * pfTop, float * pfBottom);
  	struct DistortionCoordinates_t (OPENVR_FNTABLE_CALLTYPE *ComputeDistortion)(EVREye eEye, float fU, float fV);
  	struct HmdMatrix34_t (OPENVR_FNTABLE_CALLTYPE *GetEyeToHeadTransform)(EVREye eEye);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetTimeSinceLastVsync)(float * pfSecondsSinceLastVsync, uint64_t * pulFrameCounter);
  	int32_t (OPENVR_FNTABLE_CALLTYPE *GetD3D9AdapterIndex)();
  	void (OPENVR_FNTABLE_CALLTYPE *GetDXGIOutputInfo)(int32_t * pnAdapterIndex);
  	bool (OPENVR_FNTABLE_CALLTYPE *IsDisplayOnDesktop)();
  	bool (OPENVR_FNTABLE_CALLTYPE *SetDisplayVisibility)(bool bIsVisibleOnDesktop);
  	void (OPENVR_FNTABLE_CALLTYPE *GetDeviceToAbsoluteTrackingPose)(ETrackingUniverseOrigin eOrigin, float fPredictedSecondsToPhotonsFromNow, struct TrackedDevicePose_t * pTrackedDevicePoseArray, uint32_t unTrackedDevicePoseArrayCount);
  	void (OPENVR_FNTABLE_CALLTYPE *ResetSeatedZeroPose)();
  	struct HmdMatrix34_t (OPENVR_FNTABLE_CALLTYPE *GetSeatedZeroPoseToStandingAbsoluteTrackingPose)();
  	struct HmdMatrix34_t (OPENVR_FNTABLE_CALLTYPE *GetRawZeroPoseToStandingAbsoluteTrackingPose)();
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetSortedTrackedDeviceIndicesOfClass)(ETrackedDeviceClass eTrackedDeviceClass, TrackedDeviceIndex_t * punTrackedDeviceIndexArray, uint32_t unTrackedDeviceIndexArrayCount, TrackedDeviceIndex_t unRelativeToTrackedDeviceIndex);
  	EDeviceActivityLevel (OPENVR_FNTABLE_CALLTYPE *GetTrackedDeviceActivityLevel)(TrackedDeviceIndex_t unDeviceId);
  	void (OPENVR_FNTABLE_CALLTYPE *ApplyTransform)(struct TrackedDevicePose_t * pOutputPose, struct TrackedDevicePose_t * pTrackedDevicePose, struct HmdMatrix34_t * pTransform);
  	TrackedDeviceIndex_t (OPENVR_FNTABLE_CALLTYPE *GetTrackedDeviceIndexForControllerRole)(ETrackedControllerRole unDeviceType);
  	ETrackedControllerRole (OPENVR_FNTABLE_CALLTYPE *GetControllerRoleForTrackedDeviceIndex)(TrackedDeviceIndex_t unDeviceIndex);
  	ETrackedDeviceClass (OPENVR_FNTABLE_CALLTYPE *GetTrackedDeviceClass)(TrackedDeviceIndex_t unDeviceIndex);
  	bool (OPENVR_FNTABLE_CALLTYPE *IsTrackedDeviceConnected)(TrackedDeviceIndex_t unDeviceIndex);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetBoolTrackedDeviceProperty)(TrackedDeviceIndex_t unDeviceIndex, ETrackedDeviceProperty prop, ETrackedPropertyError * pError);
  	float (OPENVR_FNTABLE_CALLTYPE *GetFloatTrackedDeviceProperty)(TrackedDeviceIndex_t unDeviceIndex, ETrackedDeviceProperty prop, ETrackedPropertyError * pError);
  	int32_t (OPENVR_FNTABLE_CALLTYPE *GetInt32TrackedDeviceProperty)(TrackedDeviceIndex_t unDeviceIndex, ETrackedDeviceProperty prop, ETrackedPropertyError * pError);
  	uint64_t (OPENVR_FNTABLE_CALLTYPE *GetUint64TrackedDeviceProperty)(TrackedDeviceIndex_t unDeviceIndex, ETrackedDeviceProperty prop, ETrackedPropertyError * pError);
  	struct HmdMatrix34_t (OPENVR_FNTABLE_CALLTYPE *GetMatrix34TrackedDeviceProperty)(TrackedDeviceIndex_t unDeviceIndex, ETrackedDeviceProperty prop, ETrackedPropertyError * pError);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetStringTrackedDeviceProperty)(TrackedDeviceIndex_t unDeviceIndex, ETrackedDeviceProperty prop, char * pchValue, uint32_t unBufferSize, ETrackedPropertyError * pError);
  	char * (OPENVR_FNTABLE_CALLTYPE *GetPropErrorNameFromEnum)(ETrackedPropertyError error);
  	bool (OPENVR_FNTABLE_CALLTYPE *PollNextEvent)(struct VREvent_t * pEvent, uint32_t uncbVREvent);
  	bool (OPENVR_FNTABLE_CALLTYPE *PollNextEventWithPose)(ETrackingUniverseOrigin eOrigin, struct VREvent_t * pEvent, uint32_t uncbVREvent, TrackedDevicePose_t * pTrackedDevicePose);
  	char * (OPENVR_FNTABLE_CALLTYPE *GetEventTypeNameFromEnum)(EVREventType eType);
  	struct HiddenAreaMesh_t (OPENVR_FNTABLE_CALLTYPE *GetHiddenAreaMesh)(EVREye eEye);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetControllerState)(TrackedDeviceIndex_t unControllerDeviceIndex, VRControllerState_t * pControllerState);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetControllerStateWithPose)(ETrackingUniverseOrigin eOrigin, TrackedDeviceIndex_t unControllerDeviceIndex, VRControllerState_t * pControllerState, struct TrackedDevicePose_t * pTrackedDevicePose);
  	void (OPENVR_FNTABLE_CALLTYPE *TriggerHapticPulse)(TrackedDeviceIndex_t unControllerDeviceIndex, uint32_t unAxisId, unsigned short usDurationMicroSec);
  	char * (OPENVR_FNTABLE_CALLTYPE *GetButtonIdNameFromEnum)(EVRButtonId eButtonId);
  	char * (OPENVR_FNTABLE_CALLTYPE *GetControllerAxisTypeNameFromEnum)(EVRControllerAxisType eAxisType);
  	bool (OPENVR_FNTABLE_CALLTYPE *CaptureInputFocus)();
  	void (OPENVR_FNTABLE_CALLTYPE *ReleaseInputFocus)();
  	bool (OPENVR_FNTABLE_CALLTYPE *IsInputFocusCapturedByAnotherProcess)();
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *DriverDebugRequest)(TrackedDeviceIndex_t unDeviceIndex, char * pchRequest, char * pchResponseBuffer, uint32_t unResponseBufferSize);
  	EVRFirmwareError (OPENVR_FNTABLE_CALLTYPE *PerformFirmwareUpdate)(TrackedDeviceIndex_t unDeviceIndex);
  	void (OPENVR_FNTABLE_CALLTYPE *AcknowledgeQuit_Exiting)();
  	void (OPENVR_FNTABLE_CALLTYPE *AcknowledgeQuit_UserPrompt)();
  };
  
  struct VR_IVRExtendedDisplay_FnTable
  {
  	void (OPENVR_FNTABLE_CALLTYPE *GetWindowBounds)(int32_t * pnX, int32_t * pnY, uint32_t * pnWidth, uint32_t * pnHeight);
  	void (OPENVR_FNTABLE_CALLTYPE *GetEyeOutputViewport)(EVREye eEye, uint32_t * pnX, uint32_t * pnY, uint32_t * pnWidth, uint32_t * pnHeight);
  	void (OPENVR_FNTABLE_CALLTYPE *GetDXGIOutputInfo)(int32_t * pnAdapterIndex, int32_t * pnAdapterOutputIndex);
  };
  
  struct VR_IVRTrackedCamera_FnTable
  {
  	char * (OPENVR_FNTABLE_CALLTYPE *GetCameraErrorNameFromEnum)(EVRTrackedCameraError eCameraError);
  	EVRTrackedCameraError (OPENVR_FNTABLE_CALLTYPE *HasCamera)(TrackedDeviceIndex_t nDeviceIndex, bool * pHasCamera);
  	EVRTrackedCameraError (OPENVR_FNTABLE_CALLTYPE *GetCameraFrameSize)(TrackedDeviceIndex_t nDeviceIndex, EVRTrackedCameraFrameType eFrameType, uint32_t * pnWidth, uint32_t * pnHeight, uint32_t * pnFrameBufferSize);
  	EVRTrackedCameraError (OPENVR_FNTABLE_CALLTYPE *GetCameraIntrinisics)(TrackedDeviceIndex_t nDeviceIndex, EVRTrackedCameraFrameType eFrameType, HmdVector2_t * pFocalLength, HmdVector2_t * pCenter);
  	EVRTrackedCameraError (OPENVR_FNTABLE_CALLTYPE *GetCameraProjection)(TrackedDeviceIndex_t nDeviceIndex, EVRTrackedCameraFrameType eFrameType, float flZNear, float flZFar, HmdMatrix44_t * pProjection);
  	EVRTrackedCameraError (OPENVR_FNTABLE_CALLTYPE *AcquireVideoStreamingService)(TrackedDeviceIndex_t nDeviceIndex, TrackedCameraHandle_t * pHandle);
  	EVRTrackedCameraError (OPENVR_FNTABLE_CALLTYPE *ReleaseVideoStreamingService)(TrackedCameraHandle_t hTrackedCamera);
  	EVRTrackedCameraError (OPENVR_FNTABLE_CALLTYPE *GetVideoStreamFrameBuffer)(TrackedCameraHandle_t hTrackedCamera, EVRTrackedCameraFrameType eFrameType, void * pFrameBuffer, uint32_t nFrameBufferSize, CameraVideoStreamFrameHeader_t * pFrameHeader, uint32_t nFrameHeaderSize);
  	EVRTrackedCameraError (OPENVR_FNTABLE_CALLTYPE *GetVideoStreamTextureSize)(TrackedDeviceIndex_t nDeviceIndex, EVRTrackedCameraFrameType eFrameType, VRTextureBounds_t * pTextureBounds, uint32_t * pnWidth, uint32_t * pnHeight);
  	EVRTrackedCameraError (OPENVR_FNTABLE_CALLTYPE *GetVideoStreamTextureD3D11)(TrackedCameraHandle_t hTrackedCamera, EVRTrackedCameraFrameType eFrameType, void * pD3D11DeviceOrResource, void ** ppD3D11ShaderResourceView, CameraVideoStreamFrameHeader_t * pFrameHeader, uint32_t nFrameHeaderSize);
  	EVRTrackedCameraError (OPENVR_FNTABLE_CALLTYPE *GetVideoStreamTextureGL)(TrackedCameraHandle_t hTrackedCamera, EVRTrackedCameraFrameType eFrameType, glUInt_t * pglTextureId, CameraVideoStreamFrameHeader_t * pFrameHeader, uint32_t nFrameHeaderSize);
  	EVRTrackedCameraError (OPENVR_FNTABLE_CALLTYPE *ReleaseVideoStreamTextureGL)(TrackedCameraHandle_t hTrackedCamera, glUInt_t glTextureId);
  };
  
  struct VR_IVRApplications_FnTable
  {
  	EVRApplicationError (OPENVR_FNTABLE_CALLTYPE *AddApplicationManifest)(char * pchApplicationManifestFullPath, bool bTemporary);
  	EVRApplicationError (OPENVR_FNTABLE_CALLTYPE *RemoveApplicationManifest)(char * pchApplicationManifestFullPath);
  	bool (OPENVR_FNTABLE_CALLTYPE *IsApplicationInstalled)(char * pchAppKey);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetApplicationCount)();
  	EVRApplicationError (OPENVR_FNTABLE_CALLTYPE *GetApplicationKeyByIndex)(uint32_t unApplicationIndex, char * pchAppKeyBuffer, uint32_t unAppKeyBufferLen);
  	EVRApplicationError (OPENVR_FNTABLE_CALLTYPE *GetApplicationKeyByProcessId)(uint32_t unProcessId, char * pchAppKeyBuffer, uint32_t unAppKeyBufferLen);
  	EVRApplicationError (OPENVR_FNTABLE_CALLTYPE *LaunchApplication)(char * pchAppKey);
  	EVRApplicationError (OPENVR_FNTABLE_CALLTYPE *LaunchTemplateApplication)(char * pchTemplateAppKey, char * pchNewAppKey, struct AppOverrideKeys_t * pKeys, uint32_t unKeys);
  	EVRApplicationError (OPENVR_FNTABLE_CALLTYPE *LaunchApplicationFromMimeType)(char * pchMimeType, char * pchArgs);
  	EVRApplicationError (OPENVR_FNTABLE_CALLTYPE *LaunchDashboardOverlay)(char * pchAppKey);
  	bool (OPENVR_FNTABLE_CALLTYPE *CancelApplicationLaunch)(char * pchAppKey);
  	EVRApplicationError (OPENVR_FNTABLE_CALLTYPE *IdentifyApplication)(uint32_t unProcessId, char * pchAppKey);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetApplicationProcessId)(char * pchAppKey);
  	char * (OPENVR_FNTABLE_CALLTYPE *GetApplicationsErrorNameFromEnum)(EVRApplicationError error);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetApplicationPropertyString)(char * pchAppKey, EVRApplicationProperty eProperty, char * pchPropertyValueBuffer, uint32_t unPropertyValueBufferLen, EVRApplicationError * peError);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetApplicationPropertyBool)(char * pchAppKey, EVRApplicationProperty eProperty, EVRApplicationError * peError);
  	uint64_t (OPENVR_FNTABLE_CALLTYPE *GetApplicationPropertyUint64)(char * pchAppKey, EVRApplicationProperty eProperty, EVRApplicationError * peError);
  	EVRApplicationError (OPENVR_FNTABLE_CALLTYPE *SetApplicationAutoLaunch)(char * pchAppKey, bool bAutoLaunch);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetApplicationAutoLaunch)(char * pchAppKey);
  	EVRApplicationError (OPENVR_FNTABLE_CALLTYPE *SetDefaultApplicationForMimeType)(char * pchAppKey, char * pchMimeType);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetDefaultApplicationForMimeType)(char * pchMimeType, char * pchAppKeyBuffer, uint32_t unAppKeyBufferLen);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetApplicationSupportedMimeTypes)(char * pchAppKey, char * pchMimeTypesBuffer, uint32_t unMimeTypesBuffer);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetApplicationsThatSupportMimeType)(char * pchMimeType, char * pchAppKeysThatSupportBuffer, uint32_t unAppKeysThatSupportBuffer);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetApplicationLaunchArguments)(uint32_t unHandle, char * pchArgs, uint32_t unArgs);
  	EVRApplicationError (OPENVR_FNTABLE_CALLTYPE *GetStartingApplication)(char * pchAppKeyBuffer, uint32_t unAppKeyBufferLen);
  	EVRApplicationTransitionState (OPENVR_FNTABLE_CALLTYPE *GetTransitionState)();
  	EVRApplicationError (OPENVR_FNTABLE_CALLTYPE *PerformApplicationPrelaunchCheck)(char * pchAppKey);
  	char * (OPENVR_FNTABLE_CALLTYPE *GetApplicationsTransitionStateNameFromEnum)(EVRApplicationTransitionState state);
  	bool (OPENVR_FNTABLE_CALLTYPE *IsQuitUserPromptRequested)();
  	EVRApplicationError (OPENVR_FNTABLE_CALLTYPE *LaunchInternalProcess)(char * pchBinaryPath, char * pchArguments, char * pchWorkingDirectory);
  };
  
  struct VR_IVRChaperone_FnTable
  {
  	ChaperoneCalibrationState (OPENVR_FNTABLE_CALLTYPE *GetCalibrationState)();
  	bool (OPENVR_FNTABLE_CALLTYPE *GetPlayAreaSize)(float * pSizeX, float * pSizeZ);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetPlayAreaRect)(struct HmdQuad_t * rect);
  	void (OPENVR_FNTABLE_CALLTYPE *ReloadInfo)();
  	void (OPENVR_FNTABLE_CALLTYPE *SetSceneColor)(struct HmdColor_t color);
  	void (OPENVR_FNTABLE_CALLTYPE *GetBoundsColor)(struct HmdColor_t * pOutputColorArray, int nNumOutputColors, float flCollisionBoundsFadeDistance, struct HmdColor_t * pOutputCameraColor);
  	bool (OPENVR_FNTABLE_CALLTYPE *AreBoundsVisible)();
  	void (OPENVR_FNTABLE_CALLTYPE *ForceBoundsVisible)(bool bForce);
  };
  
  struct VR_IVRChaperoneSetup_FnTable
  {
  	bool (OPENVR_FNTABLE_CALLTYPE *CommitWorkingCopy)(EChaperoneConfigFile configFile);
  	void (OPENVR_FNTABLE_CALLTYPE *RevertWorkingCopy)();
  	bool (OPENVR_FNTABLE_CALLTYPE *GetWorkingPlayAreaSize)(float * pSizeX, float * pSizeZ);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetWorkingPlayAreaRect)(struct HmdQuad_t * rect);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetWorkingCollisionBoundsInfo)(struct HmdQuad_t * pQuadsBuffer, uint32_t * punQuadsCount);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetLiveCollisionBoundsInfo)(struct HmdQuad_t * pQuadsBuffer, uint32_t * punQuadsCount);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetWorkingSeatedZeroPoseToRawTrackingPose)(struct HmdMatrix34_t * pmatSeatedZeroPoseToRawTrackingPose);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetWorkingStandingZeroPoseToRawTrackingPose)(struct HmdMatrix34_t * pmatStandingZeroPoseToRawTrackingPose);
  	void (OPENVR_FNTABLE_CALLTYPE *SetWorkingPlayAreaSize)(float sizeX, float sizeZ);
  	void (OPENVR_FNTABLE_CALLTYPE *SetWorkingCollisionBoundsInfo)(struct HmdQuad_t * pQuadsBuffer, uint32_t unQuadsCount);
  	void (OPENVR_FNTABLE_CALLTYPE *SetWorkingSeatedZeroPoseToRawTrackingPose)(struct HmdMatrix34_t * pMatSeatedZeroPoseToRawTrackingPose);
  	void (OPENVR_FNTABLE_CALLTYPE *SetWorkingStandingZeroPoseToRawTrackingPose)(struct HmdMatrix34_t * pMatStandingZeroPoseToRawTrackingPose);
  	void (OPENVR_FNTABLE_CALLTYPE *ReloadFromDisk)(EChaperoneConfigFile configFile);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetLiveSeatedZeroPoseToRawTrackingPose)(struct HmdMatrix34_t * pmatSeatedZeroPoseToRawTrackingPose);
  	void (OPENVR_FNTABLE_CALLTYPE *SetWorkingCollisionBoundsTagsInfo)(uint8_t * pTagsBuffer, uint32_t unTagCount);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetLiveCollisionBoundsTagsInfo)(uint8_t * pTagsBuffer, uint32_t * punTagCount);
  	bool (OPENVR_FNTABLE_CALLTYPE *SetWorkingPhysicalBoundsInfo)(struct HmdQuad_t * pQuadsBuffer, uint32_t unQuadsCount);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetLivePhysicalBoundsInfo)(struct HmdQuad_t * pQuadsBuffer, uint32_t * punQuadsCount);
  	bool (OPENVR_FNTABLE_CALLTYPE *ExportLiveToBuffer)(char * pBuffer, uint32_t * pnBufferLength);
  	bool (OPENVR_FNTABLE_CALLTYPE *ImportFromBufferToWorking)(char * pBuffer, uint32_t nImportFlags);
  };
  
  struct VR_IVRCompositor_FnTable
  {
  	void (OPENVR_FNTABLE_CALLTYPE *SetTrackingSpace)(ETrackingUniverseOrigin eOrigin);
  	ETrackingUniverseOrigin (OPENVR_FNTABLE_CALLTYPE *GetTrackingSpace)();
  	EVRCompositorError (OPENVR_FNTABLE_CALLTYPE *WaitGetPoses)(struct TrackedDevicePose_t * pRenderPoseArray, uint32_t unRenderPoseArrayCount, struct TrackedDevicePose_t * pGamePoseArray, uint32_t unGamePoseArrayCount);
  	EVRCompositorError (OPENVR_FNTABLE_CALLTYPE *GetLastPoses)(struct TrackedDevicePose_t * pRenderPoseArray, uint32_t unRenderPoseArrayCount, struct TrackedDevicePose_t * pGamePoseArray, uint32_t unGamePoseArrayCount);
  	EVRCompositorError (OPENVR_FNTABLE_CALLTYPE *GetLastPoseForTrackedDeviceIndex)(TrackedDeviceIndex_t unDeviceIndex, struct TrackedDevicePose_t * pOutputPose, struct TrackedDevicePose_t * pOutputGamePose);
  	EVRCompositorError (OPENVR_FNTABLE_CALLTYPE *Submit)(EVREye eEye, struct Texture_t * pTexture, struct VRTextureBounds_t * pBounds, EVRSubmitFlags nSubmitFlags);
  	void (OPENVR_FNTABLE_CALLTYPE *ClearLastSubmittedFrame)();
  	void (OPENVR_FNTABLE_CALLTYPE *PostPresentHandoff)();
  	bool (OPENVR_FNTABLE_CALLTYPE *GetFrameTiming)(struct Compositor_FrameTiming * pTiming, uint32_t unFramesAgo);
  	float (OPENVR_FNTABLE_CALLTYPE *GetFrameTimeRemaining)();
  	void (OPENVR_FNTABLE_CALLTYPE *GetCumulativeStats)(struct Compositor_CumulativeStats * pStats, uint32_t nStatsSizeInBytes);
  	void (OPENVR_FNTABLE_CALLTYPE *FadeToColor)(float fSeconds, float fRed, float fGreen, float fBlue, float fAlpha, bool bBackground);
  	void (OPENVR_FNTABLE_CALLTYPE *FadeGrid)(float fSeconds, bool bFadeIn);
  	EVRCompositorError (OPENVR_FNTABLE_CALLTYPE *SetSkyboxOverride)(struct Texture_t * pTextures, uint32_t unTextureCount);
  	void (OPENVR_FNTABLE_CALLTYPE *ClearSkyboxOverride)();
  	void (OPENVR_FNTABLE_CALLTYPE *CompositorBringToFront)();
  	void (OPENVR_FNTABLE_CALLTYPE *CompositorGoToBack)();
  	void (OPENVR_FNTABLE_CALLTYPE *CompositorQuit)();
  	bool (OPENVR_FNTABLE_CALLTYPE *IsFullscreen)();
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetCurrentSceneFocusProcess)();
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetLastFrameRenderer)();
  	bool (OPENVR_FNTABLE_CALLTYPE *CanRenderScene)();
  	void (OPENVR_FNTABLE_CALLTYPE *ShowMirrorWindow)();
  	void (OPENVR_FNTABLE_CALLTYPE *HideMirrorWindow)();
  	bool (OPENVR_FNTABLE_CALLTYPE *IsMirrorWindowVisible)();
  	void (OPENVR_FNTABLE_CALLTYPE *CompositorDumpImages)();
  	bool (OPENVR_FNTABLE_CALLTYPE *ShouldAppRenderWithLowResources)();
  	void (OPENVR_FNTABLE_CALLTYPE *ForceInterleavedReprojectionOn)(bool bOverride);
  	void (OPENVR_FNTABLE_CALLTYPE *ForceReconnectProcess)();
  	void (OPENVR_FNTABLE_CALLTYPE *SuspendRendering)(bool bSuspend);
  	EVRCompositorError (OPENVR_FNTABLE_CALLTYPE *GetMirrorTextureD3D11)(EVREye eEye, void * pD3D11DeviceOrResource, void ** ppD3D11ShaderResourceView);
  	EVRCompositorError (OPENVR_FNTABLE_CALLTYPE *GetMirrorTextureGL)(EVREye eEye, glUInt_t * pglTextureId, glSharedTextureHandle_t * pglSharedTextureHandle);
  	bool (OPENVR_FNTABLE_CALLTYPE *ReleaseSharedGLTexture)(glUInt_t glTextureId, glSharedTextureHandle_t glSharedTextureHandle);
  	void (OPENVR_FNTABLE_CALLTYPE *LockGLSharedTextureForAccess)(glSharedTextureHandle_t glSharedTextureHandle);
  	void (OPENVR_FNTABLE_CALLTYPE *UnlockGLSharedTextureForAccess)(glSharedTextureHandle_t glSharedTextureHandle);
  };
  
  struct VR_IVROverlay_FnTable
  {
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *FindOverlay)(char * pchOverlayKey, VROverlayHandle_t * pOverlayHandle);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *CreateOverlay)(char * pchOverlayKey, char * pchOverlayFriendlyName, VROverlayHandle_t * pOverlayHandle);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *DestroyOverlay)(VROverlayHandle_t ulOverlayHandle);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetHighQualityOverlay)(VROverlayHandle_t ulOverlayHandle);
  	VROverlayHandle_t (OPENVR_FNTABLE_CALLTYPE *GetHighQualityOverlay)();
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetOverlayKey)(VROverlayHandle_t ulOverlayHandle, char * pchValue, uint32_t unBufferSize, EVROverlayError * pError);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetOverlayName)(VROverlayHandle_t ulOverlayHandle, char * pchValue, uint32_t unBufferSize, EVROverlayError * pError);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayImageData)(VROverlayHandle_t ulOverlayHandle, void * pvBuffer, uint32_t unBufferSize, uint32_t * punWidth, uint32_t * punHeight);
  	char * (OPENVR_FNTABLE_CALLTYPE *GetOverlayErrorNameFromEnum)(EVROverlayError error);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayRenderingPid)(VROverlayHandle_t ulOverlayHandle, uint32_t unPID);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetOverlayRenderingPid)(VROverlayHandle_t ulOverlayHandle);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayFlag)(VROverlayHandle_t ulOverlayHandle, VROverlayFlags eOverlayFlag, bool bEnabled);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayFlag)(VROverlayHandle_t ulOverlayHandle, VROverlayFlags eOverlayFlag, bool * pbEnabled);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayColor)(VROverlayHandle_t ulOverlayHandle, float fRed, float fGreen, float fBlue);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayColor)(VROverlayHandle_t ulOverlayHandle, float * pfRed, float * pfGreen, float * pfBlue);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayAlpha)(VROverlayHandle_t ulOverlayHandle, float fAlpha);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayAlpha)(VROverlayHandle_t ulOverlayHandle, float * pfAlpha);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayTexelAspect)(VROverlayHandle_t ulOverlayHandle, float fTexelAspect);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayTexelAspect)(VROverlayHandle_t ulOverlayHandle, float * pfTexelAspect);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlaySortOrder)(VROverlayHandle_t ulOverlayHandle, uint32_t unSortOrder);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlaySortOrder)(VROverlayHandle_t ulOverlayHandle, uint32_t * punSortOrder);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayWidthInMeters)(VROverlayHandle_t ulOverlayHandle, float fWidthInMeters);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayWidthInMeters)(VROverlayHandle_t ulOverlayHandle, float * pfWidthInMeters);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayAutoCurveDistanceRangeInMeters)(VROverlayHandle_t ulOverlayHandle, float fMinDistanceInMeters, float fMaxDistanceInMeters);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayAutoCurveDistanceRangeInMeters)(VROverlayHandle_t ulOverlayHandle, float * pfMinDistanceInMeters, float * pfMaxDistanceInMeters);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayTextureColorSpace)(VROverlayHandle_t ulOverlayHandle, EColorSpace eTextureColorSpace);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayTextureColorSpace)(VROverlayHandle_t ulOverlayHandle, EColorSpace * peTextureColorSpace);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayTextureBounds)(VROverlayHandle_t ulOverlayHandle, struct VRTextureBounds_t * pOverlayTextureBounds);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayTextureBounds)(VROverlayHandle_t ulOverlayHandle, struct VRTextureBounds_t * pOverlayTextureBounds);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayTransformType)(VROverlayHandle_t ulOverlayHandle, VROverlayTransformType * peTransformType);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayTransformAbsolute)(VROverlayHandle_t ulOverlayHandle, ETrackingUniverseOrigin eTrackingOrigin, struct HmdMatrix34_t * pmatTrackingOriginToOverlayTransform);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayTransformAbsolute)(VROverlayHandle_t ulOverlayHandle, ETrackingUniverseOrigin * peTrackingOrigin, struct HmdMatrix34_t * pmatTrackingOriginToOverlayTransform);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayTransformTrackedDeviceRelative)(VROverlayHandle_t ulOverlayHandle, TrackedDeviceIndex_t unTrackedDevice, struct HmdMatrix34_t * pmatTrackedDeviceToOverlayTransform);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayTransformTrackedDeviceRelative)(VROverlayHandle_t ulOverlayHandle, TrackedDeviceIndex_t * punTrackedDevice, struct HmdMatrix34_t * pmatTrackedDeviceToOverlayTransform);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayTransformTrackedDeviceComponent)(VROverlayHandle_t ulOverlayHandle, TrackedDeviceIndex_t unDeviceIndex, char * pchComponentName);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayTransformTrackedDeviceComponent)(VROverlayHandle_t ulOverlayHandle, TrackedDeviceIndex_t * punDeviceIndex, char * pchComponentName, uint32_t unComponentNameSize);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *ShowOverlay)(VROverlayHandle_t ulOverlayHandle);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *HideOverlay)(VROverlayHandle_t ulOverlayHandle);
  	bool (OPENVR_FNTABLE_CALLTYPE *IsOverlayVisible)(VROverlayHandle_t ulOverlayHandle);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetTransformForOverlayCoordinates)(VROverlayHandle_t ulOverlayHandle, ETrackingUniverseOrigin eTrackingOrigin, struct HmdVector2_t coordinatesInOverlay, struct HmdMatrix34_t * pmatTransform);
  	bool (OPENVR_FNTABLE_CALLTYPE *PollNextOverlayEvent)(VROverlayHandle_t ulOverlayHandle, struct VREvent_t * pEvent, uint32_t uncbVREvent);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayInputMethod)(VROverlayHandle_t ulOverlayHandle, VROverlayInputMethod * peInputMethod);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayInputMethod)(VROverlayHandle_t ulOverlayHandle, VROverlayInputMethod eInputMethod);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayMouseScale)(VROverlayHandle_t ulOverlayHandle, struct HmdVector2_t * pvecMouseScale);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayMouseScale)(VROverlayHandle_t ulOverlayHandle, struct HmdVector2_t * pvecMouseScale);
  	bool (OPENVR_FNTABLE_CALLTYPE *ComputeOverlayIntersection)(VROverlayHandle_t ulOverlayHandle, struct VROverlayIntersectionParams_t * pParams, struct VROverlayIntersectionResults_t * pResults);
  	bool (OPENVR_FNTABLE_CALLTYPE *HandleControllerOverlayInteractionAsMouse)(VROverlayHandle_t ulOverlayHandle, TrackedDeviceIndex_t unControllerDeviceIndex);
  	bool (OPENVR_FNTABLE_CALLTYPE *IsHoverTargetOverlay)(VROverlayHandle_t ulOverlayHandle);
  	VROverlayHandle_t (OPENVR_FNTABLE_CALLTYPE *GetGamepadFocusOverlay)();
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetGamepadFocusOverlay)(VROverlayHandle_t ulNewFocusOverlay);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayNeighbor)(EOverlayDirection eDirection, VROverlayHandle_t ulFrom, VROverlayHandle_t ulTo);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *MoveGamepadFocusToNeighbor)(EOverlayDirection eDirection, VROverlayHandle_t ulFrom);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayTexture)(VROverlayHandle_t ulOverlayHandle, struct Texture_t * pTexture);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *ClearOverlayTexture)(VROverlayHandle_t ulOverlayHandle);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayRaw)(VROverlayHandle_t ulOverlayHandle, void * pvBuffer, uint32_t unWidth, uint32_t unHeight, uint32_t unDepth);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetOverlayFromFile)(VROverlayHandle_t ulOverlayHandle, char * pchFilePath);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayTexture)(VROverlayHandle_t ulOverlayHandle, void ** pNativeTextureHandle, void * pNativeTextureRef, uint32_t * pWidth, uint32_t * pHeight, uint32_t * pNativeFormat, EGraphicsAPIConvention * pAPI, EColorSpace * pColorSpace);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *ReleaseNativeOverlayHandle)(VROverlayHandle_t ulOverlayHandle, void * pNativeTextureHandle);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetOverlayTextureSize)(VROverlayHandle_t ulOverlayHandle, uint32_t * pWidth, uint32_t * pHeight);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *CreateDashboardOverlay)(char * pchOverlayKey, char * pchOverlayFriendlyName, VROverlayHandle_t * pMainHandle, VROverlayHandle_t * pThumbnailHandle);
  	bool (OPENVR_FNTABLE_CALLTYPE *IsDashboardVisible)();
  	bool (OPENVR_FNTABLE_CALLTYPE *IsActiveDashboardOverlay)(VROverlayHandle_t ulOverlayHandle);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *SetDashboardOverlaySceneProcess)(VROverlayHandle_t ulOverlayHandle, uint32_t unProcessId);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *GetDashboardOverlaySceneProcess)(VROverlayHandle_t ulOverlayHandle, uint32_t * punProcessId);
  	void (OPENVR_FNTABLE_CALLTYPE *ShowDashboard)(char * pchOverlayToShow);
  	TrackedDeviceIndex_t (OPENVR_FNTABLE_CALLTYPE *GetPrimaryDashboardDevice)();
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *ShowKeyboard)(EGamepadTextInputMode eInputMode, EGamepadTextInputLineMode eLineInputMode, char * pchDescription, uint32_t unCharMax, char * pchExistingText, bool bUseMinimalMode, uint64_t uUserValue);
  	EVROverlayError (OPENVR_FNTABLE_CALLTYPE *ShowKeyboardForOverlay)(VROverlayHandle_t ulOverlayHandle, EGamepadTextInputMode eInputMode, EGamepadTextInputLineMode eLineInputMode, char * pchDescription, uint32_t unCharMax, char * pchExistingText, bool bUseMinimalMode, uint64_t uUserValue);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetKeyboardText)(char * pchText, uint32_t cchText);
  	void (OPENVR_FNTABLE_CALLTYPE *HideKeyboard)();
  	void (OPENVR_FNTABLE_CALLTYPE *SetKeyboardTransformAbsolute)(ETrackingUniverseOrigin eTrackingOrigin, struct HmdMatrix34_t * pmatTrackingOriginToKeyboardTransform);
  	void (OPENVR_FNTABLE_CALLTYPE *SetKeyboardPositionForOverlay)(VROverlayHandle_t ulOverlayHandle, struct HmdRect2_t avoidRect);
  };
  
  struct VR_IVRRenderModels_FnTable
  {
  	EVRRenderModelError (OPENVR_FNTABLE_CALLTYPE *LoadRenderModel_Async)(char * pchRenderModelName, struct RenderModel_t ** ppRenderModel);
  	void (OPENVR_FNTABLE_CALLTYPE *FreeRenderModel)(struct RenderModel_t * pRenderModel);
  	EVRRenderModelError (OPENVR_FNTABLE_CALLTYPE *LoadTexture_Async)(TextureID_t textureId, struct RenderModel_TextureMap_t ** ppTexture);
  	void (OPENVR_FNTABLE_CALLTYPE *FreeTexture)(struct RenderModel_TextureMap_t * pTexture);
  	EVRRenderModelError (OPENVR_FNTABLE_CALLTYPE *LoadTextureD3D11_Async)(TextureID_t textureId, void * pD3D11Device, void ** ppD3D11Texture2D);
  	EVRRenderModelError (OPENVR_FNTABLE_CALLTYPE *LoadIntoTextureD3D11_Async)(TextureID_t textureId, void * pDstTexture);
  	void (OPENVR_FNTABLE_CALLTYPE *FreeTextureD3D11)(void * pD3D11Texture2D);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetRenderModelName)(uint32_t unRenderModelIndex, char * pchRenderModelName, uint32_t unRenderModelNameLen);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetRenderModelCount)();
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetComponentCount)(char * pchRenderModelName);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetComponentName)(char * pchRenderModelName, uint32_t unComponentIndex, char * pchComponentName, uint32_t unComponentNameLen);
  	uint64_t (OPENVR_FNTABLE_CALLTYPE *GetComponentButtonMask)(char * pchRenderModelName, char * pchComponentName);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetComponentRenderModelName)(char * pchRenderModelName, char * pchComponentName, char * pchComponentRenderModelName, uint32_t unComponentRenderModelNameLen);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetComponentState)(char * pchRenderModelName, char * pchComponentName, VRControllerState_t * pControllerState, struct RenderModel_ControllerMode_State_t * pState, struct RenderModel_ComponentState_t * pComponentState);
  	bool (OPENVR_FNTABLE_CALLTYPE *RenderModelHasComponent)(char * pchRenderModelName, char * pchComponentName);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetRenderModelThumbnailURL)(char * pchRenderModelName, char * pchThumbnailURL, uint32_t unThumbnailURLLen, EVRRenderModelError * peError);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetRenderModelOriginalPath)(char * pchRenderModelName, char * pchOriginalPath, uint32_t unOriginalPathLen, EVRRenderModelError * peError);
  	char * (OPENVR_FNTABLE_CALLTYPE *GetRenderModelErrorNameFromEnum)(EVRRenderModelError error);
  };
  
  struct VR_IVRNotifications_FnTable
  {
  	EVRNotificationError (OPENVR_FNTABLE_CALLTYPE *CreateNotification)(VROverlayHandle_t ulOverlayHandle, uint64_t ulUserValue, EVRNotificationType type, char * pchText, EVRNotificationStyle style, struct NotificationBitmap_t * pImage, VRNotificationId * pNotificationId);
  	EVRNotificationError (OPENVR_FNTABLE_CALLTYPE *RemoveNotification)(VRNotificationId notificationId);
  };
  
  struct VR_IVRSettings_FnTable
  {
  	char * (OPENVR_FNTABLE_CALLTYPE *GetSettingsErrorNameFromEnum)(EVRSettingsError eError);
  	bool (OPENVR_FNTABLE_CALLTYPE *Sync)(bool bForce, EVRSettingsError * peError);
  	void (OPENVR_FNTABLE_CALLTYPE *SetBool)(char * pchSection, char * pchSettingsKey, bool bValue, EVRSettingsError * peError);
  	void (OPENVR_FNTABLE_CALLTYPE *SetInt32)(char * pchSection, char * pchSettingsKey, int32_t nValue, EVRSettingsError * peError);
  	void (OPENVR_FNTABLE_CALLTYPE *SetFloat)(char * pchSection, char * pchSettingsKey, float flValue, EVRSettingsError * peError);
  	void (OPENVR_FNTABLE_CALLTYPE *SetString)(char * pchSection, char * pchSettingsKey, char * pchValue, EVRSettingsError * peError);
  	bool (OPENVR_FNTABLE_CALLTYPE *GetBool)(char * pchSection, char * pchSettingsKey, EVRSettingsError * peError);
  	int32_t (OPENVR_FNTABLE_CALLTYPE *GetInt32)(char * pchSection, char * pchSettingsKey, EVRSettingsError * peError);
  	float (OPENVR_FNTABLE_CALLTYPE *GetFloat)(char * pchSection, char * pchSettingsKey, EVRSettingsError * peError);
  	void (OPENVR_FNTABLE_CALLTYPE *GetString)(char * pchSection, char * pchSettingsKey, char * pchValue, uint32_t unValueLen, EVRSettingsError * peError);
  	void (OPENVR_FNTABLE_CALLTYPE *RemoveSection)(char * pchSection, EVRSettingsError * peError);
  	void (OPENVR_FNTABLE_CALLTYPE *RemoveKeyInSection)(char * pchSection, char * pchSettingsKey, EVRSettingsError * peError);
  };
  
  struct VR_IVRScreenshots_FnTable
  {
  	EVRScreenshotError (OPENVR_FNTABLE_CALLTYPE *RequestScreenshot)(ScreenshotHandle_t * pOutScreenshotHandle, EVRScreenshotType type, char * pchPreviewFilename, char * pchVRFilename);
  	EVRScreenshotError (OPENVR_FNTABLE_CALLTYPE *HookScreenshot)(EVRScreenshotType * pSupportedTypes, int numTypes);
  	EVRScreenshotType (OPENVR_FNTABLE_CALLTYPE *GetScreenshotPropertyType)(ScreenshotHandle_t screenshotHandle, EVRScreenshotError * pError);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetScreenshotPropertyFilename)(ScreenshotHandle_t screenshotHandle, EVRScreenshotPropertyFilenames filenameType, char * pchFilename, uint32_t cchFilename, EVRScreenshotError * pError);
  	EVRScreenshotError (OPENVR_FNTABLE_CALLTYPE *UpdateScreenshotProgress)(ScreenshotHandle_t screenshotHandle, float flProgress);
  	EVRScreenshotError (OPENVR_FNTABLE_CALLTYPE *TakeStereoScreenshot)(ScreenshotHandle_t * pOutScreenshotHandle, char * pchPreviewFilename, char * pchVRFilename);
  	EVRScreenshotError (OPENVR_FNTABLE_CALLTYPE *SubmitScreenshot)(ScreenshotHandle_t screenshotHandle, EVRScreenshotType type, char * pchSourcePreviewFilename, char * pchSourceVRFilename);
  };
  
  struct VR_IVRResources_FnTable
  {
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *LoadSharedResource)(char * pchResourceName, char * pchBuffer, uint32_t unBufferLen);
  	uint32_t (OPENVR_FNTABLE_CALLTYPE *GetResourceFullPath)(char * pchResourceName, char * pchResourceTypeDirectory, char * pchPathBuffer, uint32_t unBufferLen);
  };
  
  
  #if 0
  // Global entry points
  S_API intptr_t VR_InitInternal( EVRInitError *peError, EVRApplicationType eType );
  S_API void VR_ShutdownInternal();
  S_API bool VR_IsHmdPresent();
  S_API intptr_t VR_GetGenericInterface( const char *pchInterfaceVersion, EVRInitError *peError );
  S_API bool VR_IsRuntimeInstalled();
  S_API const char * VR_GetVRInitErrorAsSymbol( EVRInitError error );
  S_API const char * VR_GetVRInitErrorAsEnglishDescription( EVRInitError error );
  #endif
  
  #endif // __OPENVR_API_FLAT_H__
  
  
  