Linux cli command XcupGetReservedColormapEntries

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NAME 🖥️ XcupGetReservedColormapEntries 🖥️

list colormap entries reserved by the system

SYNOPSIS

cc [ flag ... ] file ... -lXext [ library ... ]
#include <X11/extensions/Xcup.h>
Status XcupGetReservedColormapEntries ( Display *display ,
int screen , XColor **colors_out , int *ncolors );

ARGUMENTS

display
Specifies the connection to the X server.

screen
Screen number on the host server.

colors_out
Returns the values reserved by the server.

ncolors
Returns the number of items in colors_out.

DESCRIPTION

The * XcupGetReservedColormapEntries * function returns a list of colormap entries (pixels) that are reserved by the system. This list will, at a minimum, contain entries for the BlackPixel and WhitePixel of the specified screen. Use * XFree * to free colors_out.

To minimize colormap flash, an application which installs its own private colormap should query the special colors by calling * XCupGetReservedColormapEntries *, and can then store those entries (in the proper location) in its private colormap using * XCupStoreColors *.

SEE ALSO

XcupQueryVersion(3Xext), XcupStoreColors(3Xext), XFree(3X11),
Colormap Utilization Policy and Extension

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