Inside Macintosh: QuickTime Components /

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

Functions / Configuration Functions for Video Channel Components

SGGetChannelBounds

The SGGetChannelBounds function allows the sequence grabber component to determine your channel's display boundary rectangle.

pascal ComponentResult SGGetChannelBounds (SGChannel c, 
                                             const Rect *bounds);

c

Identifies the channel connection for this operation.

bounds

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

DESCRIPTION

The sequence grabber component sets the boundary rectangle by calling the SGSetChannelBounds function, which is described in the previous section. This rectangle is defined in the graphics world that the sequence grabber establishes by calling the SGSetGWorld function, described on page 6-37.

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