xstorecolor(3x11) [ultrix man page]
XStoreColors(3X11) MIT X11R4 XStoreColors(3X11) Name XStoreColors, XStoreColor, XStoreNamedColor - set colors Syntax XStoreColors(display, colormap, color, ncolors) Display *display; Colormap colormap; XColor color[]; int ncolors; XStoreColor(display, colormap, color) Display *display; Colormap colormap; XColor *color; XStoreNamedColor(display, colormap, color, pixel, flags) Display *display; Colormap colormap; char *color; unsigned long pixel; int flags; Arguments color Specifies the pixel and RGB values or the color name string (for example, red). color Specifies an array of color definition structures to be stored. colormap Specifies the colormap. display Specifies the connection to the X server. flags Specifies which red, green, and blue components are set. ncolors Specifies the number of structures in the color definition array. pixel Specifies the entry in the colormap. Description The function changes the colormap entries of the pixel values specified in the pixel members of the structures. You specify which color components are to be changed by setting and/or in the flags member of the structures. If the colormap is an installed map for its screen, the changes are visible immediately. changes the specified pixels if they are allocated writable in the colormap by any client, even if one or more pixels generates an error. If a specified pixel is not a valid index into the colormap, a error results. If a specified pixel either is unallocated or is allocated read-only, a error results. If more than one pixel is in error, the one that gets reported is arbi- trary. can generate and errors. The function changes the colormap entry of the pixel value specified in the pixel member of the structure. You specified this value in the pixel member of the structure. This pixel value must be a read/write cell and a valid index into the colormap. If a specified pixel is not a valid index into the colormap, a error results. also changes the red, green, and/or blue color components. You specify which color components are to be changed by setting and/or in the flags member of the structure. If the colormap is an installed map for its screen, the changes are visible immediately. can generate and errors. The function looks up the named color with respect to the screen associated with the colormap and stores the result in the specified col- ormap. The pixel argument determines the entry in the colormap. The flags argument determines which of the red, green, and blue compo- nents are set. You can set this member to the bitwise inclusive OR of the bits and If the specified pixel is not a valid index into the colormap, a error results. If the specified pixel either is unallocated or is allocated read-only, a error results. You should use the ISO Latin-1 encoding; uppercase and lowercase do not matter. can generate and errors. Diagnostics A client attempted to free a color map entry that it did not already allocate. A client attempted to store into a read-only color map entry. A value for a Colormap argument does not name a defined Colormap. A font or color of the specified name does not exist. 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 XAllocColor(3X11), XCreateColormap(3X11), XQueryColor(3X11) X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys XStoreColors(3X11)
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XStoreColors(3X11) XLIB FUNCTIONS XStoreColors(3X11) NAME
XStoreColors, XStoreColor, XStoreNamedColor - set colors SYNTAX
XStoreColors(display, colormap, color, ncolors) Display *display; Colormap colormap; XColor color[]; int ncolors; XStoreColor(display, colormap, color) Display *display; Colormap colormap; XColor *color; XStoreNamedColor(display, colormap, color, pixel, flags) Display *display; Colormap colormap; char *color; unsigned long pixel; int flags; ARGUMENTS
color Specifies the pixel and RGB values or the color name string (for example, red). color Specifies an array of color definition structures to be stored. colormap Specifies the colormap. display Specifies the connection to the X server. flags Specifies which red, green, and blue components are set. ncolors Specifies the number of XColor structures in the color definition array. pixel Specifies the entry in the colormap. DESCRIPTION
The XStoreColors function changes the colormap entries of the pixel values specified in the pixel members of the XColor structures. You specify which color components are to be changed by setting DoRed, DoGreen, and/or DoBlue in the flags member of the XColor structures. If the colormap is an installed map for its screen, the changes are visible immediately. XStoreColors changes the specified pixels if they are allocated writable in the colormap by any client, even if one or more pixels generates an error. If a specified pixel is not a valid index into the colormap, a BadValue error results. If a specified pixel either is unallocated or is allocated read-only, a BadAccess error results. If more than one pixel is in error, the one that gets reported is arbitrary. XStoreColors can generate BadAccess, BadColor, and BadValue errors. The XStoreColor function changes the colormap entry of the pixel value specified in the pixel member of the XColor structure. You speci- fied this value in the pixel member of the XColor structure. This pixel value must be a read/write cell and a valid index into the col- ormap. If a specified pixel is not a valid index into the colormap, a BadValue error results. XStoreColor also changes the red, green, and/or blue color components. You specify which color components are to be changed by setting DoRed, DoGreen, and/or DoBlue in the flags member of the XColor structure. If the colormap is an installed map for its screen, the changes are visible immediately. XStoreColor can generate BadAccess, BadColor, and BadValue errors. The XStoreNamedColor function looks up the named color with respect to the screen associated with the colormap and stores the result in the specified colormap. The pixel argument determines the entry in the colormap. The flags argument determines which of the red, green, and blue components are set. You can set this member to the bitwise inclusive OR of the bits DoRed, DoGreen, and DoBlue. If the color name is not in the Host Portable Character Encoding, the result is implementation-dependent. Use of uppercase or lowercase does not matter. If the specified pixel is not a valid index into the colormap, a BadValue error results. If the specified pixel either is unallocated or is allocated read-only, a BadAccess error results. XStoreNamedColor can generate BadAccess, BadColor, BadName, and BadValue errors. DIAGNOSTICS
BadAccess A client attempted to free a color map entry that it did not already allocate. BadAccess A client attempted to store into a read-only color map entry. BadColor A value for a Colormap argument does not name a defined Colormap. BadName A font or color of the specified name does not exist. BadValue Some numeric value falls outside the range of values accepted by the request. Unless a specific range is specified for an argu- ment, 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
XAllocColor(3X11), XCreateColormap(3X11), XQueryColor(3X11) Xlib - C Language X Interface X Version 11 Release 6.6 XStoreColors(3X11)