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NAMEXvQueryExtension - return version and release of extension SYNOPSIS#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); ARGUMENTS
DESCRIPTIONXvQueryExtension(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. RETURN VALUES
SEE ALSOXv(3)
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