Inside Macintosh: QuickTime Reference

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Extension to Wired Movie Format: Executing Custom Actions

kActionAtom 
    <kCustomActionHandler, 1, 1> 
       kCustomHandlerDesc, 1, 1 
            [ComponentDescription handlerDesc] 
        <kCustomHandlerID, 1, 1> 
            [long handlerID] 

You define parameter atoms as usual and have access to the parameters through an API for writing custom action handlers. This means that parameters may be wired expressions and your component may fetch the result of the evaluated expression.

© 2000 Apple Computer, Inc.

Inside Macintosh: QuickTime Reference

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