AllPlanes(3), BlackPixel(3), WhitePixel(3), ConnectionNumber(3),
 DefaultColormap(3), DefaultDepth(3), XListDepths(3), DefaultGC(3),
 DefaultRootWindow(3), DefaultScreenOfDisplay(3), DefaultScreen(3),
 DefaultVisual(3), DisplayCells(3), DisplayPlanes(3), DisplayString(3),
 XMaxRequestSize(3), XExtendedMaxRequestSize(3),
 LastKnownRequestProcessed(3), NextRequest(3), ProtocolVersion(3),
 ProtocolRevision(3), QLength(3), RootWindow(3), ScreenCount(3),
 ScreenOfDisplay(3), ServerVendor(3), VendorRelease(3) - Display macros and
 functions

 XAddConnectionWatch(3), XRemoveConnectionWatch(3),
 XProcessInternalConnection(3), XInternalConnectionNumbers(3) - handle Xlib
 internal connections