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XSetRegion()							  XSetRegion()

Name
  XSetRegion  –	 set  clip_mask	 of the graphics context to the specified
  region.

Synopsis
  XSetRegion(display, gc, r)
	Display *display;
	GC gc;
	Region r;

Arguments
  display   Specifies  a  connection  to  an  X	 server;  returned   from
	    XOpenDisplay().

  gc	    Specifies the graphics context.

  r	    Specifies the region.

Description
  XSetRegion()	sets  the  clip_mask  component	 of a GC to the specified
  region.  Thereafter, all drawing made with gc will be confined  to  the
  area of intersection of the region and the drawable.	Once it is set in
  the GC, the region can be destroyed.

  XSetRegion sets the clip origin of the GC to	an  implementation-depen‐
  dent value.

  For  more information on regions, see Volume One, Chapter 5, The Graph‐
  ics Context, and Chapter 6, Drawing Graphics and Text.

Structures
  Region is a pointer to an opaque structure type.

See Also
  XClipBox(), XCreateRegion(), XDestroyRegion(), XEmptyRegion(),  XEqual‐
  Region(), XIntersectRegion(), XOffsetRegion(), XPointInRegion(), XPoly‐
  gonRegion(),	 XRectInRegion(),   XShrinkRegion(),   XSubtractRegion(),
  XUnionRectWithRegion(), XUnionRegion(), XXorRegion().

Xlib - Regions							  XSetRegion()

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