XdbeQueryExtension(3)

NAME

       XdbeQueryExtension  -  returns  the  version  of  DBE  supported by the
       server.

SYNOPSIS

       #include <X11/extensions/Xdbe.h>

       Status XdbeQueryExtension(
           Display *dpy,
           int     *major_version_return,
           int     *minor_version_return)

DESCRIPTION

       Sets major_version_return and minor_version_return  to  the  major  and
       minor DBE protocol version supported by the server.  If the DBE library
       is compatible with the version returned by the  server,  this  function
       returns  non-zero.   If  dpy  does not support the DBE extension, or if
       there was an error during communication with  the  server,  or  if  the
       server  and  library  protocol versions are incompatible, this function
       returns zero.  No other Xdbe functions may be called before this  func-
       tion.   If  a  client violates this rule, the effects of all subsequent
       Xdbe calls that it makes are undefined.

SEE ALSO

       DBE,  XdbeAllocateBackBufferName(),  XdbeBeginIdiom(),  XdbeDeallocate-
       BackBufferName(),  XdbeEndIdiom(),  XdbeFreeVisualInfo(),  XdbeGetBack-
       BufferAttributes(), XdbeGetVisualInfo(), XdbeSwapBuffers().

X Version 11                     libXext 1.0.3           XdbeQueryExtension(3)