XvQueryExtension

XvQueryExtension(3X)					 XvQueryExtension(3X)



Name
       XvQueryExtension - return version and release of extension

Syntax
       #include <X11/extensions/Xvlib.h>

       XvQueryExtension(dpy, p_version, p_release,
	    p_request_base, p_event_base, p_error_base)

       Display *dpy;
       unsigned int *p_version, *p_release;
       unsigned int *p_request_base, *p_event_base, *p_error_base;

Arguments
       p_version      Pointer  to  where the current version number of the Xv
		      video extension is written.

       p_release      Pointer to where the release number  of  the  Xv	video
		      extension is written.

       p_request_base Pointer  to where the extension major request number is
		      returned

       p_event_base   Pointer to where the extension event base is returned

       p_error_base   Pointer to where the extension error base is returned

Description
       XvQueryExtension(3X) returns the version and release numbers  for  the
       Xv  video  extension  currently	loaded	on the system.	The extension
       major request number, event base, and error base are also returned.

Returned Values
       [Success]
	       Returned if XvQueryExtension(3X) completed successfully.

       [XvBadExtension]
	       Returned if the Xv video extension is not  available  for  the
	       named display.

       [XvBadAlloc]
	       Returned	 if XvQueryExtension(3X) failed to allocate memory to
	       process the request.



X.Org				Version 6.8.2		 XvQueryExtension(3X)