xquerycolors(3x11) [ultrix man page]
XQueryColor(3X11) MIT X11R4 XQueryColor(3X11) Name XQueryColor, XQueryColors, XLookupColor - obtain color values Syntax XQueryColor(display, colormap, def_in_out) Display *display; Colormap colormap; XColor *def_in_out; XQueryColors(display, colormap, defs_in_out, ncolors) Display *display; Colormap colormap; XColor defs_in_out[]; int ncolors; Status XLookupColor(display, colormap, color_name, exact_def_return, screen_def_return) Display *display; Colormap colormap; char *color_name; XColor *exact_def_return, *screen_def_return; Arguments colormap Specifies the colormap. color_name Specifies the color name string (for example, red) whose color definition structure you want returned. def_in_out Specifies and returns the RGB values for the pixel specified in the structure. defs_in_out Specifies and returns an array of color definition structures for the pixel specified in the structure. display Specifies the connection to the X server. exact_def_return Returns the exact RGB values. ncolors Specifies the number of structures in the color definition array. screen_def_return Returns the closest RGB values provided by the hardware. Description The function returns the hardware-specific RGB values for each pixel in the structures and sets the and flags. The function returns the RGB values for each pixel in the structures and sets the and flags. and can generate and errors. The function looks up the string name of a color with respect to the screen associated with the specified colormap. It returns both the exact color values and the closest values provided by the screen with respect to the visual type of the specified colormap. You should use the ISO Latin-1 encoding; uppercase and lowercase do not matter. returns nonzero if the name existed in the color database or zero if it did not exist. Diagnostics A value for a Colormap argument does not name a defined Colormap. 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), XStoreColors(3X11) X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys XQueryColor(3X11)
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XQueryColor(3X11) MIT X11R4 XQueryColor(3X11) Name XQueryColor, XQueryColors, XLookupColor - obtain color values Syntax XQueryColor(display, colormap, def_in_out) Display *display; Colormap colormap; XColor *def_in_out; XQueryColors(display, colormap, defs_in_out, ncolors) Display *display; Colormap colormap; XColor defs_in_out[]; int ncolors; Status XLookupColor(display, colormap, color_name, exact_def_return, screen_def_return) Display *display; Colormap colormap; char *color_name; XColor *exact_def_return, *screen_def_return; Arguments colormap Specifies the colormap. color_name Specifies the color name string (for example, red) whose color definition structure you want returned. def_in_out Specifies and returns the RGB values for the pixel specified in the structure. defs_in_out Specifies and returns an array of color definition structures for the pixel specified in the structure. display Specifies the connection to the X server. exact_def_return Returns the exact RGB values. ncolors Specifies the number of structures in the color definition array. screen_def_return Returns the closest RGB values provided by the hardware. Description The function returns the hardware-specific RGB values for each pixel in the structures and sets the and flags. The function returns the RGB values for each pixel in the structures and sets the and flags. and can generate and errors. The function looks up the string name of a color with respect to the screen associated with the specified colormap. It returns both the exact color values and the closest values provided by the screen with respect to the visual type of the specified colormap. You should use the ISO Latin-1 encoding; uppercase and lowercase do not matter. returns nonzero if the name existed in the color database or zero if it did not exist. Diagnostics A value for a Colormap argument does not name a defined Colormap. 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), XStoreColors(3X11) X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys XQueryColor(3X11)