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)