| GPM_BOT | Bottom of area. | 
| GPM_B_LEFT | Left mouse button identifier. | 
| GPM_B_MIDDLE | Middle mouse button identifier. | 
| GPM_B_RIGHT | Right mouse button identifier. | 
| GPM_DOUBLE | Mouse double click event. | 
| GPM_DOWN | Mouse button down event. | 
| GPM_DRAG | Mouse drag event. | 
| GPM_ENTER | Enter area event. | 
| GPM_HARD | ? | 
| GPM_LEAVE | Leave area event. | 
| GPM_LFT | Left side of area. | 
| GPM_MAGIC | Constant identifying GPM in Gpm_Open . | 
| GPM_MFLAG | Motion flag. | 
| GPM_MOVE | Mouse move event. | 
| GPM_NODE_CTL | Control socket | 
| GPM_NODE_DEV | Device socket filename | 
| GPM_NODE_DIR | Where to write socket. | 
| GPM_NODE_DIR_MODE | Mode of socket. | 
| GPM_NODE_FIFO | FIFO name | 
| GPM_NODE_PID | Name of PID file. | 
| GPM_RGT | Right side of area. | 
| GPM_SINGLE | Mouse single click event. | 
| GPM_TOP | Top of area. | 
| GPM_TRIPLE | Mouse triple click event. | 
| GPM_UP | Mouse button up event. | 
| _PATH_DEV | Location of /dev directory. | 
| _PATH_VARRUN | Location of run PID files directory. |