1XSetClipOrigin(3) XLIB FUNCTIONS XSetClipOrigin(3)
2
6 XSetClipOrigin, XSetClipMask, XSetClipRectangles - GC convenience rou‐
7 tines
8
10 int XSetClipOrigin(Display *display, GC gc, int clip_x_origin, int
11 clip_y_origin);
12 int XSetClipMask(Display *display, GC gc, Pixmap pixmap);
14 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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19 display Specifies the connection to the X server.
20 clip_x_origin
22 clip_y_origin
23 Specify the x and y coordinates of the clip-mask origin.
24 gc Specifies the GC.
26 n Specifies the number of rectangles.
28 ordering Specifies the ordering relations on the rectangles. You can
30 pass Unsorted, YSorted, YXSorted, or YXBanded.
31 pixmap Specifies the pixmap or None.
33 rectangles
35 Specifies an array of rectangles that define the clip-mask.
36
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.
41 XSetClipOrigin can generate BadAlloc and BadGC errors.
43 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).
47 XSetClipMask can generate BadAlloc, BadGC, BadMatch, and BadValue er‐
49 rors.
50 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.
61 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.
74 XSetClipRectangles can generate BadAlloc, BadGC, BadMatch, and BadValue
76 errors.
77
79 BadAlloc The server failed to allocate the requested resource or
80 server memory.
81 BadGC A value for a GContext argument does not name a defined GCon‐
83 text.
84 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.
88 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.
94
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
100X Version 11 libX11 1.7.3.1 XSetClipOrigin(3)