1XStoreColors(3)                 XLIB FUNCTIONS                 XStoreColors(3)
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NAME

6       XStoreColors, XStoreColor, XStoreNamedColor - set colors
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SYNTAX

9       int XStoreColors(Display *display, Colormap colormap, XColor color[],
10              int ncolors);
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12       int XStoreColor(Display *display, Colormap colormap, XColor *color);
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14       int XStoreNamedColor(Display *display, Colormap colormap, char *color,
15              unsigned long pixel, int flags);
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ARGUMENTS

18       color     Specifies the pixel and RGB values or the color name string
19                 (for example, red).
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21       color     Specifies an array of color definition structures to be
22                 stored.
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24       colormap  Specifies the colormap.
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26       display   Specifies the connection to the X server.
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28       flags     Specifies which red, green, and blue components are set.
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30       ncolors   Specifies the number of XColor structures in the color defi‐
31                 nition array.
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33       pixel     Specifies the entry in the colormap.
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DESCRIPTION

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.
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49       XStoreColors can generate BadAccess, BadColor, and BadValue errors.
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51       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.
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62       XStoreColor can generate BadAccess, BadColor, and BadValue errors.
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64       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.
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76       XStoreNamedColor can generate BadAccess, BadColor, BadName, and Bad‐
77       Value errors.
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DIAGNOSTICS

80       BadAccess A client attempted to free a color map entry that it did not
81                 already allocate.
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83       BadAccess A client attempted to store into a read-only color map entry.
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85       BadColor  A value for a Colormap argument does not name a defined Col‐
86                 ormap.
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88       BadName   A font or color of the specified name does not exist.
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90       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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SEE ALSO

97       XAllocColor(3), XCreateColormap(3), XQueryColor(3)
98       Xlib - C Language X Interface
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102X Version 11                     libX11 1.6.7                  XStoreColors(3)
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