1XStoreColors(3) XLIB FUNCTIONS XStoreColors(3)
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6 XStoreColors, XStoreColor, XStoreNamedColor - set colors
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9 int XStoreColors(Display *display, Colormap colormap, XColor color[],
10 int ncolors);
11 int XStoreColor(Display *display, Colormap colormap, XColor *color);
13 int XStoreNamedColor(Display *display, Colormap colormap, char *color,
15 unsigned long pixel, int flags);
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18 color Specifies the pixel and RGB values or the color name string
19 (for example, red).
20 color Specifies an array of color definition structures to be
22 stored.
23 colormap Specifies the colormap.
25 display Specifies the connection to the X server.
27 flags Specifies which red, green, and blue components are set.
29 ncolors Specifies the number of XColor structures in the color defi‐
31 nition array.
32 pixel Specifies the entry in the colormap.
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36 The XStoreColors function changes the colormap entries of the pixel
37 values specified in the pixel members of the XColor structures. You
38 specify which color components are to be changed by setting DoRed,
39 DoGreen, and/or DoBlue in the flags member of the XColor structures.
40 If the colormap is an installed map for its screen, the changes are
41 visible immediately. XStoreColors changes the specified pixels if they
42 are allocated writable in the colormap by any client, even if one or
43 more pixels generates an error. If a specified pixel is not a valid
44 index into the colormap, a BadValue error results. If a specified
45 pixel either is unallocated or is allocated read-only, a BadAccess
46 error results. If more than one pixel is in error, the one that gets
47 reported is arbitrary.
48 XStoreColors can generate BadAccess, BadColor, and BadValue errors.
50 The XStoreColor function changes the colormap entry of the pixel value
52 specified in the pixel member of the XColor structure. You specified
53 this value in the pixel member of the XColor structure. This pixel
54 value must be a read/write cell and a valid index into the colormap.
55 If a specified pixel is not a valid index into the colormap, a BadValue
56 error results. XStoreColor also changes the red, green, and/or blue
57 color components. You specify which color components are to be changed
58 by setting DoRed, DoGreen, and/or DoBlue in the flags member of the
59 XColor structure. If the colormap is an installed map for its screen,
60 the changes are visible immediately.
61 XStoreColor can generate BadAccess, BadColor, and BadValue errors.
63 The XStoreNamedColor function looks up the named color with respect to
65 the screen associated with the colormap and stores the result in the
66 specified colormap. The pixel argument determines the entry in the
67 colormap. The flags argument determines which of the red, green, and
68 blue components are set. You can set this member to the bitwise inclu‐
69 sive OR of the bits DoRed, DoGreen, and DoBlue. If the color name is
70 not in the Host Portable Character Encoding, the result is implementa‐
71 tion-dependent. Use of uppercase or lowercase does not matter. If the
72 specified pixel is not a valid index into the colormap, a BadValue
73 error results. If the specified pixel either is unallocated or is
74 allocated read-only, a BadAccess error results.
75 XStoreNamedColor can generate BadAccess, BadColor, BadName, and Bad‐
77 Value errors.
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80 BadAccess A client attempted to free a color map entry that it did not
81 already allocate.
82 BadAccess A client attempted to store into a read-only color map entry.
84 BadColor A value for a Colormap argument does not name a defined Col‐
86 ormap.
87 BadName A font or color of the specified name does not exist.
89 BadValue Some numeric value falls outside the range of values accepted
91 by the request. Unless a specific range is specified for an
92 argument, the full range defined by the argument's type is
93 accepted. Any argument defined as a set of alternatives can
94 generate this error.
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97 XAllocColor(3), XCreateColormap(3), XQueryColor(3)
98 Xlib - C Language X Interface
99X Version 11 libX11 1.6.9 XStoreColors(3)