| B | L | P | S | T | W | X |
| BadBarrier | BarrierNegativeX | BarrierPositiveX |
| BadRegion | BarrierNegativeY | BarrierPositiveY |
| libXfixes |
| PPointerBarrier | PXFixesCursorImageAndName | PXFixesSelectionNotifyEvent |
| PXFixesCursorImage | PXFixesCursorNotifyEvent | PXserverRegion |
| SaveSetMap | SaveSetRoot | |
| SaveSetNearest | SaveSetUnmap |
| TPointerBarrier | TXFixesCursorImageAndName | TXFixesSelectionNotifyEvent |
| TXFixesCursorImage | TXFixesCursorNotifyEvent | TXserverRegion |
| WindowRegionBounding | WindowRegionClip |