These represent the buttons on a mouse. 
| Enumerator | 
|---|
| Mouse_XPos  | 
 The mouses absolute position on the X-Axis.  
 | 
| Mouse_YPos  | 
 The mouses absolute position on the Y-Axis.  
 | 
| Mouse_XDelta  | 
 The mouses movement delta on the X-Axis.  
 | 
| Mouse_YDelta  | 
 The mouses movement delta on the Y-Axis.  
 | 
| Mouse_Wheel  | 
 The mouses wheel delta.  
 | 
| Mouse_Wheel2  | 
 The mouses second wheel delta (rare on mouses)  
 | 
| Mouse_MaxAxis  | 
 Max axis enum.  
 | 
| Mouse_LeftButton  | 
 Left mouse button.  
 | 
| Mouse_RightButton  | 
 Right mouse button.  
 | 
| Mouse_MiddleButton  | 
 Middle mouse button.  
 | 
| Mouse_Extra1  | 
 Extra mouse button 1 (often maps to 'back')  
 | 
| Mouse_Extra2  | 
 Extra mouse button 2 (often maps to 'forward')  
 | 
| Mouse_Extra3  | 
 Extra mouse button 3.  
 | 
| Mouse_Extra4  | 
 Extra mouse button 4.  
 | 
| Mouse_Extra5  | 
 Extra mouse button 5.  
 | 
| Mouse_Max  | 
 Maximum mouse input.  
 | 
| Mouse_MaxButtons  | 
 Number of mouse buttons.  
 | 
| Mouse_ForceInt  | 
 Force mouse button to an int type.  
 |