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xcupqueryversion(3) [centos man page]

XcupQueryVersion(3)						    X FUNCTIONS 					       XcupQueryVersion(3)

XcupQueryVersion - Returns TOG-CUP protocol version supported by the X server SYNOPSIS
cc [ flag ... ] file ... -lXext [ library ... ] #include <X11/extensions/Xcup.h> Status XcupQueryVersion(Display *display, int *major_version_return, int *minor_version_return); ARGUMENTS
display Specifies the connection to the X server major_version_return Returns the major version supported by the server minor_version_return Returns the minor version supported by the server DESCRIPTION
XcupQueryVersion sets major_version_return and minor_version_return to the major and minor TOG-CUP protocol version supported by the server. If the TOG-CUP library is compatible with the version returned by the server, it returns nonzero. If the server does not support the TOG-CUP extension, or if there was an error during communications with the server, or if the server and library protocol versions are incompatible, it returns zero. No other Xcup functions may be called before this function. If a client violates this rule, the effects of all subsequent Xcup calls that it makes are undefined. To get the list of reserved colormap entries, use XcupGetReservedColormapEntries. To allocate one or more read-only color cells with RGB values, use XcupStoreColors. SEE ALSO
XcupGetReservedColormapEntries(3Xext), XcupStoreColors(3Xext), Colormap Utilization Policy and Extension X Version 11 libXext 1.3.2 XcupQueryVersion(3)

Check Out this Related Man Page

XCUP(3) 							    X FUNCTIONS 							   XCUP(3)

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 XCupGetRe- servedColormapEntries, 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 X Version 11 libXext 1.3.1 XCUP(3)
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