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MAN page from Mandriva 2008 libxv1-devel-1.0.3-1mdv2008.0.i586.rpm

XvQueryExtension

Section: C Library Functions (3)
Updated: libXv 1.0.3
Index 

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 extensionis written.
p_release
Pointer to where the release number of the Xv video extensionis 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 releasenumbers for the Xv video extension currently loaded on the system. The extension major request number, event base, and errorbase 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 processthe request.


 

Index

Name
Syntax
Arguments
Description
Returned Values

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