Manpages - XvSelectPortNotify.3

XvSelectPortNotify - enable or disable XvPortNotify events

#include <X11/extensions/Xvlib.h>

  int XvSelectPortNotify(Display *dpy, XvPortID port, Bool onoff);

dpy

Specifies the connection to the X server.

port

Specifies the port for which PortNotify events are to be generated when its attributes are changed using *XvSetPortAttribute*(3)

onoff

Specifies whether notification is to be enabled or disabled.

*XvSelectPortNotify*(3) enables or disables PortNotify event delivery to the requesting client. *XvPortNotify*(3) events are generated when port attributes are changed using *XvSetPortAttribute*(3).

[Success]

Returned if *XvSelectPortNotify*(3) completed successfully.

[XvBadExtension]

Returned if the Xv extension is unavailable.

[XvBadAlloc]

Returned if *XvSelectPortNotify*(3) failed to allocate memory to process the request.

[XvBadPort]

Generated if the requested port does not exist.

*XvSetPortNotify*(3), *XvSetPortAttribute*(3), *XvPortNotify*(3)