XSetClipOrigin man page on Slackware

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XSetClipOrigin(3)		XLIB FUNCTIONS		     XSetClipOrigin(3)

NAME
       XSetClipOrigin, XSetClipMask, XSetClipRectangles - GC convenience rou‐
       tines

SYNTAX
       int XSetClipOrigin(Display *display, GC gc, int clip_x_origin, int
	      clip_y_origin);

       int XSetClipMask(Display *display, GC gc, Pixmap pixmap);

       int XSetClipRectangles(Display *display, GC gc, int clip_x_origin, int
	      clip_y_origin, XRectangle rectangles[], int n, int ordering);

ARGUMENTS
       display	 Specifies the connection to the X server.

       clip_x_origin
       clip_y_origin
		 Specify the x and y coordinates of the clip-mask origin.

       gc	 Specifies the GC.

       n	 Specifies the number of rectangles.

       ordering	 Specifies the ordering relations on the rectangles.  You can
		 pass Unsorted, YSorted, YXSorted, or YXBanded.

       pixmap	 Specifies the pixmap or None.

       rectangles
		 Specifies an array of rectangles that define the clip-mask.

DESCRIPTION
       The XSetClipOrigin function sets the clip origin in the specified GC.
       The clip-mask origin is interpreted relative to the origin of whatever
       destination drawable is specified in the graphics request.

       XSetClipOrigin can generate BadAlloc and BadGC errors.

       The XSetClipMask function sets the clip-mask in the specified GC to the
       specified pixmap.  If the clip-mask is set to None, the pixels are are
       always drawn (regardless of the clip-origin).

       XSetClipMask can generate BadAlloc, BadGC, BadMatch, and BadValue
       errors.

       The XSetClipRectangles function changes the clip-mask in the specified
       GC to the specified list of rectangles and sets the clip origin.	 The
       output is clipped to remain contained within the rectangles.  The clip-
       origin is interpreted relative to the origin of whatever destination
       drawable is specified in a graphics request.  The rectangle coordinates
       are interpreted relative to the clip-origin.  The rectangles should be
       nonintersecting, or the graphics results will be undefined.  Note that
       the list of rectangles can be empty, which effectively disables output.
       This is the opposite of passing None as the clip-mask in XCreateGC,
       XChangeGC, and XSetClipMask.

       If known by the client, ordering relations on the rectangles can be
       specified with the ordering argument.  This may provide faster opera‐
       tion by the server.  If an incorrect ordering is specified, the X
       server may generate a BadMatch error, but it is not required to do so.
       If no error is generated, the graphics results are undefined.  Unsorted
       means the rectangles are in arbitrary order.  YSorted means that the
       rectangles are nondecreasing in their Y origin.	YXSorted additionally
       constrains YSorted order in that all rectangles with an equal Y origin
       are nondecreasing in their X origin.  YXBanded additionally constrains
       YXSorted by requiring that, for every possible Y scanline, all rectan‐
       gles that include that scanline have an identical Y origins and Y
       extents.

       XSetClipRectangles can generate BadAlloc, BadGC, BadMatch, and BadValue
       errors.

DIAGNOSTICS
       BadAlloc	 The server failed to allocate the requested resource or
		 server memory.

       BadGC	 A value for a GContext argument does not name a defined GCon‐
		 text.

       BadMatch	 Some argument or pair of arguments has the correct type and
		 range but fails to match in some other way required by the
		 request.

       BadValue	 Some numeric value falls outside the range of values accepted
		 by the request.  Unless a specific range is specified for an
		 argument, the full range defined by the argument's type is
		 accepted.  Any argument defined as a set of alternatives can
		 generate this error.

SEE ALSO
       XCreateGC(3), XDrawRectangle(3), XQueryBestSize(3), XSetArcMode(3),
       XSetFillStyle(3), XSetFont(3), XSetLineAttributes(3), XSetState(3),
       XSetTile(3)
       Xlib - C Language X Interface

X Version 11			 libX11 1.6.2		     XSetClipOrigin(3)
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