XcupQueryVersion(3Xext) manual page

Table of Contents

## Name

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);ArgumentsdisplaySpecifies the connection to the
    X server major_version_returnReturns the major version supported by the
    server minor_version_returnReturns the minor version supported by the server
    DescriptionXcupQueryVersion   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 AlsoXcupGetReservedColormapEntries(3Xext), XcupStoreColors(3Xext),

    Colormap Utilization Policy and Extension