DragonFly On-Line Manual Pages
XcupStoreColors(3) X FUNCTIONS XcupStoreColors(3)
XcupStoreColors - initialize shareable colormap entries at specific
cc [ flag ... ] file ... -lXext [ library ... ]
Status XcupStoreColors(Display *display, Colormap colormap,
XColor *colors_in_out, int ncolors);
display Specifies the connection to the X server
colormap Specifies the colormap
Specifies and returns the values actually used in the
ncolors Specifies the number of items in colors_in_out
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.
Colormap Utilization Policy and Extension
X Version 11 libXext 1.3.4 XcupStoreColors(3)