XvGrabPort(3) libXv Functions 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 ig- nored and XvInvalidTime is returned. If the port is already grabbed by an- other client, XvAlreadyGrabbed is returned. Otherwise it returns a status of Success. The port time is updated when the following requests 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) X Version 11 libXv 1.0.13 XvGrabPort(3)
NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURN VALUES | DIAGNOSTICS | SEE ALSO
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