XvQueryExtension man page on aLinux

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XvQueryExtension(3)					   XvQueryExtension(3)

Name
       XvQueryExtension - return version and release of extension

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

       XvQueryExtension(Display *dpy, unsigned int *p_version,
		       unsigned int *p_revision,
		       unsigned int *p_request_base,
		       unsigned int *p_event_base,
		       unsigned int *p_error_base);

Arguments
       dpy	      Specifies the connection to the X server.

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

       p_revision     Pointer to where the revision 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(3) 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(3) completed successfully.

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

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

X Version 11			  libXv 1.0.4		   XvQueryExtension(3)
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