XDisplayKeycodes(display, min_keycodes_return, max_keycodes_return)
        Display *display;
        int *min_keycodes_return, *max_keycodes_return;
| display | Specifies the connection to the X server. | 
| min_keycodes_return | Returns the minimum number of KeyCodes. | 
| max_keycodes_return | Returns the maximum number of KeyCodes. |