Manual Pages for UNIX Operating System command usage for man XvQueryExtension

libXv Functions                             XvQueryExtension(3xv)



NAME
     XvQueryExtension - return version and release of extension

SYNOPSIS
     cc [ flag... ] file... -lXv [ library... ]
     #include 

     int 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(3xv)  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.

RETURN VALUES
     [Success]
             Returned if XvQueryExtension(3xv) completed success-
             fully.

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

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

SEE ALSO
     Xv(3xv)



X Version 11        Last change: libXv 1.0.5                    1






libXv Functions                             XvQueryExtension(3xv)



ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | x11/library/libxv           |
    |_____________________________|_____________________________|
    | Interface Stability         | Volatile                    |
    |_____________________________|_____________________________|
    | MT-Level                    | See XInitThreads(3X11)      |
    |_____________________________|_____________________________|










































X Version 11        Last change: libXv 1.0.5                    2