1XSetClipOrigin(3)               XLIB FUNCTIONS               XSetClipOrigin(3)
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NAME

6       XSetClipOrigin,  XSetClipMask, XSetClipRectangles - GC convenience rou‐
7       tines
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SYNTAX

10       int XSetClipOrigin(Display *display,  GC  gc,  int  clip_x_origin,  int
11              clip_y_origin);
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13       int XSetClipMask(Display *display, GC gc, Pixmap pixmap);
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15       int  XSetClipRectangles(Display *display, GC gc, int clip_x_origin, int
16              clip_y_origin, XRectangle rectangles[], int n, int ordering);
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ARGUMENTS

19       display   Specifies the connection to the X server.
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21       clip_x_origin
22       clip_y_origin
23                 Specify the x and y coordinates of the clip-mask origin.
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25       gc        Specifies the GC.
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27       n         Specifies the number of rectangles.
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29       ordering  Specifies the ordering relations on the rectangles.  You  can
30                 pass Unsorted, YSorted, YXSorted, or YXBanded.
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32       pixmap    Specifies the pixmap or None.
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34       rectangles
35                 Specifies an array of rectangles that define the clip-mask.
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DESCRIPTION

38       The  XSetClipOrigin  function sets the clip origin in the specified GC.
39       The clip-mask origin is interpreted relative to the origin of  whatever
40       destination drawable is specified in the graphics request.
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42       XSetClipOrigin can generate BadAlloc and BadGC errors.
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44       The XSetClipMask function sets the clip-mask in the specified GC to the
45       specified pixmap.  If the clip-mask is set to None, the pixels are  are
46       always drawn (regardless of the clip-origin).
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48       XSetClipMask  can  generate BadAlloc, BadGC, BadMatch, and BadValue er‐
49       rors.
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51       The XSetClipRectangles function changes the clip-mask in the  specified
52       GC  to  the specified list of rectangles and sets the clip origin.  The
53       output is clipped to remain contained within the rectangles.  The clip-
54       origin  is  interpreted  relative to the origin of whatever destination
55       drawable is specified in a graphics request.  The rectangle coordinates
56       are  interpreted relative to the clip-origin.  The rectangles should be
57       nonintersecting, or the graphics results will be undefined.  Note  that
58       the list of rectangles can be empty, which effectively disables output.
59       This is the opposite of passing None as  the  clip-mask  in  XCreateGC,
60       XChangeGC, and XSetClipMask.
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62       If  known  by  the  client, ordering relations on the rectangles can be
63       specified with the ordering argument.  This may provide  faster  opera‐
64       tion  by  the  server.   If  an  incorrect ordering is specified, the X
65       server may generate a BadMatch error, but it is not required to do  so.
66       If no error is generated, the graphics results are undefined.  Unsorted
67       means the rectangles are in arbitrary order.  YSorted  means  that  the
68       rectangles  are nondecreasing in their Y origin.  YXSorted additionally
69       constrains YSorted order in that all rectangles with an equal Y  origin
70       are  nondecreasing in their X origin.  YXBanded additionally constrains
71       YXSorted by requiring that, for every possible Y scanline, all  rectan‐
72       gles  that  include that scanline have an identical Y origins and Y ex‐
73       tents.
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75       XSetClipRectangles can generate BadAlloc, BadGC, BadMatch, and BadValue
76       errors.
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DIAGNOSTICS

79       BadAlloc  The  server  failed  to  allocate  the  requested resource or
80                 server memory.
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82       BadGC     A value for a GContext argument does not name a defined GCon‐
83                 text.
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85       BadMatch  Some  argument  or pair of arguments has the correct type and
86                 range but fails to match in some other way  required  by  the
87                 request.
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89       BadValue  Some numeric value falls outside the range of values accepted
90                 by the request.  Unless a specific range is specified for  an
91                 argument,  the  full  range defined by the argument's type is
92                 accepted.  Any argument defined as a set of alternatives  can
93                 generate this error.
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SEE ALSO

96       XCreateGC(3),   XDrawRectangle(3),  XQueryBestSize(3),  XSetArcMode(3),
97       XSetFillStyle(3),  XSetFont(3),  XSetLineAttributes(3),   XSetState(3),
98       XSetTile(3)
99       Xlib - C Language X Interface
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103X Version 11                     libX11 1.7.2                XSetClipOrigin(3)
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