text: #pragma once
  
  #define SAIL_MOUSE_BUTTON_1      0
  #define SAIL_MOUSE_BUTTON_2      1
  #define SAIL_MOUSE_BUTTON_3      2
  #define SAIL_MOUSE_BUTTON_4      3
  #define SAIL_MOUSE_BUTTON_5      4
  //#define SAIL_MOUSE_WHEEL         5
  //#define SAIL_MOUSE_HWHEEL        6
  #define SAIL_MOUSE_LEFT_BUTTON   SAIL_MOUSE_BUTTON_1
  #define SAIL_MOUSE_RIGHT_BUTTON  SAIL_MOUSE_BUTTON_2
  #define SAIL_MOUSE_MIDDLE_BUTTON SAIL_MOUSE_BUTTON_3
  
  #define SAIL_NUM_MOUSE_BUTTONS 5