- XDisplayName
- XDisplayOfIM
- XDisplayOfOM
- xdr
- XDrawArc
- XDrawArcs
- XDrawImageString
- XDrawImageString16
- XDrawLine
- XDrawLines
- XDrawPoint
- XDrawPoints
- XDrawRectangle
- XDrawRectangles
- XDrawSegments
- XDrawString
- XDrawString16
- XDrawText
- XDrawText16
- XEmptyRegion
- XEnableAccessControl
- xencrypt
- XEqualRegion
- XEvent
- XEventsQueued
- XeviGetVisualInfo
- XeviQueryExtension
- XeviQueryVersion
- XExposeEvent
- XExtentsOfFontSet
- XFetchBuffer
- XFetchBytes
- XFetchName
- XFillArc
- XFillArcs
- XFillPolygon
- XFillRectangle
- XFillRectangles
- XFilterEvent
- XFindContext
- XFlush
- XFocusChangeEvent
- XFontProp
- XFontSetExtents
- XFontsOfFontSet
- XFontStruct
- XForceScreenSaver
- XFree
- XFreeColormap
- XFreeColors
- XFreeCursor
- XFreeDeviceList
- XFreeFont
- XFreeFontInfo
- XFreeFontNames
- XFreeFontPath
- XFreeFontSet
- XFreeGC
- XFreeModifierMap XModifierKeymap
- XFreePixmap
- XFreeStringList
- XGContextFromGC
- XGCValues
- XGetAtomName
- XGetAtomNames
- XGetClassHint
- XGetCommand
- XGetDeviceControl
- XGetDeviceDontPropagateList
- XGetDeviceFocus
MAN (3)
Library functions, covering in particular the C standard library