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From: kurtzman@pollux.usc.edu (Stephen Kurtzman)
Newsgroups: comp.sys.mac.programmer,comp.sys.mac.hypercard
Subject: Re: How to SEND cmd,shift,option keydowns to OS from Hypercard...
Keywords: Hypercard,events,OS,keydown
Message-ID: <9237@oberon.USC.EDU>
Date: 20 May 88 20:51:08 GMT
References: <101@iseesun.UUCP>
Sender: news@oberon.USC.EDU
Reply-To: kurtzman@pollux.usc.edu (Stephen Kurtzman)
Organization: University of Southern California, Los Angeles, CA
Lines: 6

In article <101@iseesun.UUCP> djnowak@iseesun.UUCP (RSG Mac Tech Exch) writes:
>Does anyone out there
>know of a way to send an option-cmd-shift-anykey to the mac OS from Hypercard?

I remember seeing an XCMD to do exactly this. I believe it is called
PostEvent. Look around on local BBS and try checking the SUMEX archive.