1XvQueryExtension(3)             libXv Functions            XvQueryExtension(3)
2
3
4

NAME

6       XvQueryExtension - return version and release of extension
7

SYNOPSIS

9       #include <X11/extensions/Xvlib.h>
10
11       int XvQueryExtension(Display *dpy, unsigned int *p_version,
12                           unsigned int *p_revision,
13                           unsigned int *p_request_base,
14                           unsigned int *p_event_base,
15                           unsigned int *p_error_base);
16

ARGUMENTS

18       dpy            Specifies the connection to the X server.
19
20       p_version      Pointer  to  where  the current version number of the Xv
21                      video extension is written.
22
23       p_revision     Pointer to where the revision number  of  the  Xv  video
24                      extension is written.
25
26       p_request_base Pointer  to  where the extension major request number is
27                      returned
28
29       p_event_base   Pointer to where the extension event base is returned
30
31       p_error_base   Pointer to where the extension error base is returned
32

DESCRIPTION

34       XvQueryExtension(3) returns the version and release numbers for the  Xv
35       video  extension  currently  loaded on the system.  The extension major
36       request number, event base, and error base are also returned.
37

RETURN VALUES

39       [Success]
40               Returned if XvQueryExtension(3) completed successfully.
41
42       [XvBadExtension]
43               Returned if the Xv video extension is  not  available  for  the
44               named display.
45

SEE ALSO

47       Xv(3)
48
49
50
51X Version 11                     libXv 1.0.11              XvQueryExtension(3)
Impressum