-- card: 7597 from stack: in
-- bmap block id: 0
-- flags: 0000
-- background id: 7110
-- name: 


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VERY IMPORTANT: A global variable named “theSpeech” MUST be declared before TurnSpeechOn is called. For this reason, TurnSpeechOn is almost always called from a script, since it must be assured that “theSpeech” exists, and a global variable cannot be declared from the Message box.

TurnSpeechOn should only be called once during an HyperCard session (unless balanced by a TurnSpeechOff command).  One method of assuring that TurnSpeechOn is called correctly is to call it in an OpenStack handler and to call TurnSpeechOff in a CloseStack handler.

Another method involves the global variable “theSpeech”:  if it is non-empty, then TurnSpeechOff has been called. Before any use of Macintalk, simply insert the following code beforehand (you can put this in your OpenStack Handler if desired):

                                global theSpeech
                                if theSpeech is empty then TurnSpeechOn

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How Macintalk Works (continued)