Want to unblock port for particular site Post: 302768055

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LEARN ABOUT XFREE86

xvgrabport

XvGrabPort(3X)															    XvGrabPort(3X)

Name
       XvGrabPort - lock port for exclusive use by client

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

       XvGrabPort(dpy, port, time)

       Display *dpy;
       XvPortID port;
       Time time;

Arguments
       dpy     Specifies the display screen on which the Xv Server is to accept requests from Xv clients.  If the display option is not specified,
	       Xv uses the display screen specified by your DISPLAY environment variable.  The display	option	has  the  format  hostname:number.
	       Using two colons (::) instead of one (:) indicates that DECnet is to be used for transport.

       port    Defines the port to be grabbed.

       time    Specifies the request timestamp.

Description
       XvGrabPort(3X) grabs a port.  Once a client grabs a port, only that client can make video requests to that port.

       If  the	time  is  before  the  current port time, the XvGrabPort request is ignored and XvInvalidTime is returned.  If the port is already
       grabbed by another client, XvAlreadyGrabbed is returned. Otherwise it returns a status of Success.  The port time is updated when the  fol-
       lowing requests are processed: XvGrabPort(3X), XvUngrabPort(3X), XvPutVideo(3X), XvPutStill(3X), XvGetVideo(3X), XvGetStill(3X).

       If  the port is actively processing video for another client, the video is preempted, and an XvVideoNotify event with detail XvPreempted is
       generated for its drawable.

Returned Values
       [Success]
	       Returned if XvGrabPort(3X) completed successfully.

       [XvInvalidTime]
	       Returned if requested time is older than the current port time.

       [XvAlreadyGrabbed]
	       Returned if the port is already grabbed by another client.

       [XvBadExtension]
	       Returned if the Xv extension is unavailable.

       [XvBadAlloc]
	       Returned if XvGrabPort(3X) failed to allocate memory to process the request.

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

See Also
       XvUngrabPort(3X) XvVideoNotify(3X)

XFree86 							   Version 4.7.0						    XvGrabPort(3X)