XdbeQueryExtension

XdbeQueryExtension(3X11)	 X FUNCTIONS	     XdbeQueryExtension(3X11)



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 func-
       tion returns zero.  No other Xdbe functions may be called before	 this
       function.   If  a client violates this rule, the effects of all subse-
       quent Xdbe calls that it makes are undefined.

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




						     XdbeQueryExtension(3X11)