Inside Macintosh: QuickTime Components /

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

Functions / Controlling Sequence Grabber Channel Components

SGPause

A sequence grabber component can suspend or restart a record or preview operation by calling the SGPause function.

pascal ComponentResult SGPause (SeqGrabComponent s, Byte pause);

s

Identifies the sequence grabber component that has connected to your channel component.

pause

Instructs your component to suspend or restart the current operation. The following values are valid:

seqGrabUnpause

Restart the current operation.

seqGrabPause

Pause the current operation.

DESCRIPTION

The sequence grabber component supplies a constant value in the paused parameter that instructs your component to pause or restart the current operation.

SPECIAL CONSIDERATIONS

Your component should not release any system resources or temporary memory associated with the current operation--you should be ready to restart the operation immediately.

RESULT CODES

deviceCantMeetRequest

-9408

Device cannot support grabber

File Manager errors
Memory Manager errors

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