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error 404 revVideoGrabIdle | revDocs | RunRev
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revVideoGrabIdle
Basics
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Type
Command
Syntax

revVideoGrabIdle

Introduced
2.0
Environment
Desktop
Platform Support
MacOS,Mac OS X,Windows
Security
Disk,Privacy
Summary
Gives processing time to QuickTime during video previewing and recording.
Examples

revVideoGrabIdle
send "revVideoGrabIdle" to me in 10 milliseconds

Additional Comments
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Use the revVideoGrabIdle command to avoid display problems during video capture.

Comments:

When using QuickTime for video capture, you need to execute the revVideoGrabIdle command periodically in order to let QuickTime update the display. (Not doing so may cause the video in the video grabber to stutter or display strange screen artifacts.) If you have issued the revPreviewVideo or revRecordVideo command, be sure to call the revVideoGrabIdle command periodically until you stop previewing or recording video.

There is no specific interval to use between calls to revVideoGrabIdle. If you are seeing jittering or strange artifacts in the video grabber window, try decreasing the interval and calling revVideoGrabIdle more often.

Note: If you specified "VFW" or "directx" as the video method when you executed the revInitializeVideoGrabbercommand, you don't need to call revVideoGrabIdle. If the video capture is using Video for Windows, the revVideoGrabIdlecommand is ignored and has no effect. You need to call revVideoGrabIdle only if you specified "QT" as the video method.

Important! The revVideoGrabIdlecommand is part of the Video library. To ensure that the command works in a standalone application, you must include this custom library when you create your standalone. In the Inclusions section on the General screen of the Standalone Application Settings window, make sure that "Video Grabber" is selected from the list of script libraries.

User Comments
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