- XUngrabDevice
- XUngrabDeviceButton
- XUngrabKeyboard
- XUngrabPointer
- XUngrabServer
- XUninstallColormap
- XUnionRectWithRegion
- XUnionRegion
- XUniqueContext
- XUnloadFont
- XUnlockDisplay
- XUnmapSubwindows
- XUnmapWindow
- XUnregisterIMInstantiateCallback
- XUnsetICFocus
- Xutf8DrawImageString
- Xutf8DrawString
- Xutf8DrawText
- Xutf8LookupString
- Xutf8ResetIC
- Xutf8SetWMProperties
- Xutf8TextEscapement
- Xutf8TextExtents
- Xutf8TextListToTextProperty
- Xutf8TextPerCharExtents
- Xutf8TextPropertyToTextList
- Xv
- XVaCreateNestedList
- XvFreeAdaptorInfo
- XvFreeEncodingInfo
- XvGetPortAttribute
- XvGetStill
- XvGetVideo
- XvGrabPort
- XVisibilityNotifyEvent
- XVisualIDFromVisual
- XVisualInfo
- XvPortNotify
- XvPutStill
- XvPutVideo
- XvQueryAdaptors
- XvQueryBestSize
- XvQueryEncodings
- XvQueryExtension
- XvSelectPortNotify
- XvSelectVideoNotify
- XvSetPortAttribute
- XvStopVideo
- XvUngrabPort
- XvVideoNotify
- XWarpPointer
- XwcDrawImageString
- XwcDrawString
- XwcDrawText
- XwcFreeStringList
- XwcLookupString
- XwcResetIC
- XwcTextEscapement
- XwcTextExtents
- XwcTextListToTextProperty
- XwcTextPerCharExtents
- XwcTextPropertyToTextList
- XWindowAttributes
- XWindowChanges
- XWindowEvent
- XWithdrawWindow
- XWMGeometry
- XWMHints
- XWriteBitmapFile
- XXorRegion
MAN (3)
Library functions, covering in particular the C standard library