anchor.diff:  ;;    GAMEPAD_BUTTON_LEFT_THUMB,
   ;;    GAMEPAD_BUTTON_RIGHT_THUMB
   ;;} GamepadButton;
  -;;
  +(define-constant +gamepad-button-unknown+ 0)
  +(define-constant +gamepad-button-left-face-up+ 1)
  +(define-constant +gamepad-button-left-face-right+ 2)
  +(define-constant +gamepad-button-left-face-down+ 3)
  +(define-constant +gamepad-button-left-face-left+ 4)
  +(define-constant +gamepad-button-right-face-up+ 5)
  +(define-constant +gamepad-button-right-face-right+ 6)
  +(define-constant +gamepad-button-right-face-down+ 7)
  +(define-constant +gamepad-button-right-face-left+ 8)
  +(define-constant +gamepad-button-left-trigger-1+ 9)
  +(define-constant +gamepad-button-left-trigger-2+ 10)
  +(define-constant +gamepad-button-right-trigger-1+ 11)
  +(define-constant +gamepad-button-right-trigger-2+ 12)
  +(define-constant +gamepad-button-middle-left+ 13)
  +(define-constant +gamepad-button-middle+ 14)
  +(define-constant +gamepad-button-middle-right+ 15)
  +(define-constant +gamepad-button-left-thumb+ 16)
  +(define-constant +gamepad-button-right-thumb+ 17)
  +
   ;;typedef enum {
   ;;    // This is here just for error checking
   ;;    GAMEPAD_AXIS_UNKNOWN = 0,
  
positive.code: ;;    GESTURE_PINCH_IN    = 256,
  ;;    GESTURE_PINCH_OUT   = 512
  ;;} GestureType;
  ;;
  ;;// Camera system modes
  ;;typedef enum {
  ;;    CAMERA_CUSTOM = 0,
  
negative.code: ;;    GAMEPAD_AXIS_LEFT_TRIGGER,      // [1..-1] (pressure-level)
  ;;    GAMEPAD_AXIS_RIGHT_TRIGGER      // [1..-1] (pressure-level)
  ;;} GamepadAxis;
  (define-constant +gamepad-axis-unknown+ 0)
  (define-constant +gamepad-axis-left-x+ 1)
  (define-constant +gamepad-axis-left-y+ 2)
  (define-constant +gamepad-axis-right-x+ 3)
  (define-constant +gamepad-axis-right-y+ 4)
  (define-constant +gamepad-axis-left-trigger+ 5)
  (define-constant +gamepad-axis-right-trigger+ 6)
  
  ;;// Shader location point type
  ;;typedef enum {
  ;;    LOC_VERTEX_POSITION = 0,
  