freebsd man page for xvselectportnotify

XvSelectPortNotify(3)						  libXv Functions					     XvSelectPortNotify(3)

NAME

       XvSelectPortNotify - enable or disable XvPortNotify events

SYNOPSIS

       #include <X11/extensions/Xvlib.h>

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

ARGUMENTS

       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.

DESCRIPTION

       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).

RETURN VALUES

       [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.

DIAGNOSTICS

       [XvBadPort]
	       Generated if the requested port does not exist.

SEE ALSO

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

X Version 11							    libXv 1.0.7 					     XvSelectPortNotify(3)