Inside Macintosh: Interapplication Communication /

Chapter 10 - Scripting Components / Scripting Components Reference

Optional Scripting Component Routines / Using Script Contexts to Handle Apple Events

OSAMakeContext

You can use the OSAMakeContext function to get a script ID for a new script context.

FUNCTION OSAMakeContext(scriptingComponent: ComponentInstance;
                        contextName: AEDesc;
                        parentContext: OSAID;
                        VAR resultingContextID: OSAID): OSAError;

scriptingComponent

A component instance created by a prior call to the Component Manager function OpenDefaultComponent or OpenComponent (see page 10-4).

contextName

Name of new context. Some scripting components may use context names for semantic purposes. If the value of this parameter is typeNull, OSAMakeContext creates an unnamed context.

parentContext

Existing context from which new context inherits bindings. If the value of this parameter is kOSANullScript, the new context does not inherit bindings from any other context.

resultingContextID

A script ID for the resulting script context.

DESCRIPTION

The OSAMakeContext function creates a new script context that you may pass to OSAExecute or OSAExecuteEvent. The new script context inherits the bindings of the script context specified in the parentContext parameter.

SPECIAL CONSIDERATIONS

If you call OSAMakeContext using an instance of the generic scripting component, the generic scripting component uses the default scripting component to create the new script context.

RESULT CODES

noErr	0	No error
errOSACantCoerce	-1700	Invalid context name
errOSASystemError	-1750	General scripting system error
errOSAInvalidID	-1751	Invalid script ID
badComponentInstance	$80008001	Invalid component instance D

SEE ALSO

To compile existing source data into a script context, use OSACompile as described on page 10-47.