Inside Macintosh: QuickTime Components /

Chapter 6 - Sequence Grabber Channel Components / Sequence Grabber Channel Components Reference

Functions / Configuration Functions for Video Channel Components

SGGetSrcVideoBounds

The SGGetSrcVideoBounds function allows the sequence grabber component to determine the size of the source video boundary rectangle.

pascal ComponentResult SGGetSrcVideoBounds (SGChannel c, Rect *r);

c

Identifies the channel connection for this operation.

r

Contains a pointer to a rectangle structure that is to receive information about your channel's source video boundary rectangle.

DESCRIPTION

This rectangle defines the size of the source video image.

RESULT CODE

paramErr

-50

Invalid parameter specified

SEE ALSO

For video channel components that work with video digitizer components, this rectangle corresponds to the video digitizer's active source rectangle (see the chapter "Video Digitizer Components" in this book for more information about video digitizer components).

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