Inside Macintosh: QuickTime Components /

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

Functions / Configuration Functions for Video Channel Components

SGGetVideoRect

The SGGetVideoRect function allows the sequence grabber to determine the portion of the source video image that your component is going to capture.

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

c

Contains a pointer to the channel connection for this operation.

r

Contains a pointer to a rectangle structure that is to receive the dimensions of the rectangle that defines the portion of the source video image your component is going to capture.

SEE ALSO

The sequence grabber uses the SGSetVideoRect function, which is described in the previous section, to set the dimensions of this rectangle.

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