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X11R7.4 - man page for xvselectportnotify (x11r4 section 3)

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XvSelectPortNotify(3)							    XvSelectPortNotify(3)

Name
       XvSelectPortNotify - enable or disable XvPortNotify(3) events

Syntax
       #include <X11/extensions/Xvlib.h>

       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).

Returned 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 1.0.4			    XvSelectPortNotify(3)
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