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error 404 revPreviewVideo | revDocs | RunRev
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Product Edition
Version
revPreviewVideo
Basics
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Type
Command
Syntax
revPreviewVideo
Introduced
2.0
Environment
Desktop,Web
Platform Support
MacOS,Mac OS X,Windows
Security
Disk,Privacy
Summary
Displays the video input in the video grabber without recording it.
Examples

revPreviewVideo
if the hilite of button "Preview Only" then revPreviewVideo

Additional Comments
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Use the revPreviewVideo command to see the image from a video camera on the screen.

Comments:

You must use the revInitializeVideoGrabber command to open the video grabber before you can use the revPreviewVideo command.

The revPreviewVideo command shows the input from the video source in the video grabber window, but does not record it. To save the video as a file while displaying it, use the revRecordVideo command instead.

If the video grabber was already recording video to a file, the revPreviewVideo command stops the recording.

Important! If you are using QuickTime for video capture, execute the revVideoGrabIdlecommand periodically while previewing or recording video. Otherwise, you may experience poor quality in the video capture.

To stop displaying the video input, use the revStopPreviewingVideo command.

Important! The revPreviewVideocommand 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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