hpux man page for xgcontextfromgc

XGContextFromGC()														 XGContextFromGC()

Name
  XGContextFromGC - obtain the GContext (resource ID) associated with the specified graphics context.

Synopsis
  GContext XGContextFromGC(gc)
	GC gc;

Arguments
  gc	    Specifies the graphics context of the desired resource ID.

Returns
  The GContext.

Description
  XGContextFromGC() extracts the resource ID from the GC structure.  The GC structure is Xlib's local cache of GC values and contains a field
  for the GContext ID.	This function is essentially a macro that accesses this field, since the GC structure is intended to be opaque.

  A GContext is needed to set a field of the XVisualInfo structure prior to calling XGetVisualInfo().

See Also
  XDefaultGC(), XChangeGC(), XCopyGC(), XCreateGC(), XFreeGC(),  XSetArcMode(),  XSetBackground(),  XSetClipMask(),  XSetClipOrigin(),	XSet-
  ClipRectangles(),  XSetDashes(),  XSetFillRule(),  XSetFillStyle(),  XSetForeground(), XSetFunction(), XSetGraphicsExposures(), XSetLineAt-
  tributes(), XSetPlaneMask(), XSetState(), XSetStipple(), XSetSubwindowMode(), XSetTSOrigin().

Xlib - Graphics Context 													 XGContextFromGC()