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XcupStoreColors(3)                X FUNCTIONS               XcupStoreColors(3)

NAME
       XcupStoreColors - initialize shareable colormap entries at specific
       locations

SYNOPSIS
       cc [ flag ... ] file ... -lXext [ library ... ]
       #include <X11/extensions/Xcup.h>

       Status XcupStoreColors(Display *display, Colormap colormap,
              XColor *colors_in_out, int ncolors);

ARGUMENTS
       display   Specifies the connection to the X server

       colormap  Specifies the colormap

       colors_in_out
                 Specifies and returns the values actually used in the
                 colormap

       ncolors   Specifies the number of items in colors_in_out

DESCRIPTION
       The XcupStoreColors function changes the colormap entries of the pixel
       values in the pixel members of the XColor structures. The colormap
       entries are allocated as if an AllocColor has been used instead, i.e.
       the colors are read-only (shareable).  XcupStoreColors returns the
       number of colors that were successfully allocated in the colormap.

       A Value error is generated if a pixel is not a valid index into the
       colormap. A BadMatch error is generated if the colormap does not belong
       to a GrayScale, PseudoColor, or DirectColor visual.

       Applications which allocate many colors in a screen's default colormap,
       e.g.  a color-cube or a gray-ramp, should allocate them with
       XCupStoreColors.  By using XCupStoreColors the colors will be allocated
       sharable (read-only) and any other application which allocates the same
       color will share that color cell.

SEE ALSO
       XcupQueryVersion(3Xext), XcupGetReservedColormapEntries(3Xext),
       Colormap Utilization Policy and Extension

X Version 11                     libXext 1.3.4              XcupStoreColors(3)