Inside Macintosh: QuickTime Components /

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

Functions / Configuration Functions for Video Channel Components

SGSetChannelBounds

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

pascal ComponentResult SGSetChannelBounds (SGChannel c,
                                           Rect *bounds);

c

Identifies the channel connection for this operation.

bounds

Contains a pointer to a rectangle that defines your channel's display boundary rectangle.

DESCRIPTION

This rectangle defines the destination for data from this channel. This rectangle is defined in the graphics world that the sequence grabber component establishes by calling the SGSetGWorld function, described on page 6-37.

SPECIAL CONSIDERATIONS

The SGSetChannelBounds function adjusts the channel matrix, as appropriate.

RESULT CODES

cantDoThatInCurrentMode	-9402	Request invalid in current mode
notEnoughMemoryToGrab	-9403	Insufficient memory for record operation
deviceCantMeetRequest	-9408	Device cannot support grabber

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