Article View: comp.sys.atari.st
Article #35224Re: button events. Wanting to wait for either one or two clicks.
From: Simon Poole
Date: Sat, 26 Nov 1988 16:35
Date: Sat, 26 Nov 1988 16:35
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In article <6982@chinet.chi.il.us> saj@chinet.chi.il.us (Stephen Jacobs) writes: >I'd like to tag an old question onto this discussion of button sensing: some >mouse sensing calls leave the machine in an unexpected state. In particular, >after using a call (was it vq_mouse()?) to interrogate the mouse button state >in a loop, an evnt_multi() waiting for a mouse event exits immediately, even >if a fairly long time elapses between the completion of the loop and the call >to evnt_multi(). Does this sound familiar to anyone? Would you care to >explain the scope of this peculiarity, and suggest a remedy? What's unexpected about this? Doing a vq_mouse (a VDI call) does not effect the AES event queue in anyway, in particular it doesn't cause events to get lost. In general it's not a good idea to mix AES/VDI/... calls, things can become dreadfully unsynchronized (this is one thing to look out for, if you use the solution that was suggested to the original question (installing a mouse interrupt handler that maps all buttons to the left one (something I did for UniTerm a long time ago))). -- ---------------------------------------------------------------------------- UUCP: ...mcvax!cernvax!forty2!poole Simon Poole BITNET: K538915@CZHRZU1A ----------------------------------------------------------------------------
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arc1-ca.pugleaf.net!utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!gatech!mcnc!ece-csc!ncrcae!ncrlnk!uunet!mcvax!cernvax!ethz!forty2!pooleReferences:
<1988Nov19.180454.563@gpu.utcs.toronto.edu> <7632@pasteur.Berkeley.EDU> <6982@chinet.chi.il.us>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!gatech!mcnc!ece-csc!ncrcae!ncrlnk!uunet!mcvax!cernvax!ethz!forty2!poole From: poole@forty2.UUCP (Simon Poole) Newsgroups: comp.sys.atari.st Subject: Re: button events. Wanting to wait for either one or two clicks. Keywords: evnt_button, evnt_multi, Laser C Message-ID: <528@forty2.UUCP> Date: 26 Nov 88 16:35:56 GMT References: <1988Nov19.180454.563@gpu.utcs.toronto.edu> <7632@pasteur.Berkeley.EDU> <6982@chinet.chi.il.us> Reply-To: poole@forty2.UUCP (Simon Poole) Organization: Exp. Physics University Zuerich Lines: 23