#include "copyright.h"

/* $XConsortium: XChGC.c,v 11.9 88/09/06 16:04:28 jim Exp $ */
/* Copyright    Massachusetts Institute of Technology    1986	 */

#include "Xlibint.h"

XChangeGC (dpy, gc, valuemask, values)
  register Display *dpy;
  GC gc;
  unsigned long valuemask;
  XGCValues *values;
{
  LockDisplay (dpy);

  valuemask &= (1L << (GCLastBit + 1)) - 1;
  if (valuemask)
    _XUpdateGCCache (gc, valuemask, values);

  /* if any Resource ID changed, must flush */
  if (gc->dirty & (GCFont | GCTile | GCStipple))
    _XFlushGCCache (dpy, gc);
  UnlockDisplay (dpy);
  SyncHandle ();
}