Inside Macintosh: QuickTime /

Chapter 2 - Movie Toolbox / Movie Toolbox Reference

Application-Defined Functions / Callback Event Functions

MyCallBack

Your callback function must support the following interface:

pascal void MyCallBackProc (QTCallBack cb, long refcon);

cb

Specifies the callback event for the operation.

refcon

Contains a reference constant value for your callback function.

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