NAME
SYNOPSIS
ARGUMENTS
DESCRIPTION
RETURN VALUES
SEE ALSO
XvQueryExtension − return version and release of extension
#include <X11/extensions/Xvlib.h>
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);
|
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 |
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.
[Success]
Returned if XvQueryExtension(3) completed successfully.
[XvBadExtension]
Returned if the Xv video extension is not available for the named display.