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Inside Macintosh: Interapplication Communication /
Chapter 10 - Scripting Components / Scripting Components Reference
Required Scripting Component Routines / Manipulating the Active Function

OSASetActiveProc

You can use the OSASetActiveProc routine to set the active function that a scripting component calls periodically while executing a script.

FUNCTION OSASetActiveProc(scriptingComponent: ComponentInstance;
                          activeProc: OSAActiveProcPtr;
                          refCon: LongInt): OSAError;
scriptingComponent

A component instance created by a prior call to the Component Manager function OpenDefaultComponent or OpenComponent (see page 10-4).
activeProc
A pointer to the active function to set. If the value of this parameter is NIL, OSASetActiveProc sets the scripting component's default active function.
refCon
A reference constant to be associated with the active function. This parameter can be used for many purposes; for example, it could contain a handle to data used by the active function.
RESULT CODES
noErr0No error
errOSASystemError-1750General scripting system error
badComponentInstance$80008001Invalid component instance
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7 JUL 1996

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