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XvGrabPort(3) Library Functions Manual XvGrabPort(3) NAME XvGrabPort - lock port for exclusive use by client SYNOPSIS #include <X11/extensions/Xvlib.h> int XvGrabPort(Display *dpy, XvPortID port, Time time); ARGUMENTS dpy Specifies the connection to the X server. port Defines the port to be grabbed. time Specifies the request timestamp. DESCRIPTION XvGrabPort(3) 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 following re- quests are processed: XvGrabPort(3), XvUngrabPort(3), XvPutVideo(3), XvPutStill(3), XvGetVideo(3), XvGetStill(3). 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. RETURN VALUES [Success] Returned if XvGrabPort(3) 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(3) failed to allocate memory to process the request. DIAGNOSTICS [XvBadPort] Generated if the requested port does not exist. SEE ALSO XvUngrabPort(3), XvVideoNotify(3) libXv Functions X Version 11 XvGrabPort(3)