Article View: comp.sys.atari.st
Article #36879Re: Atari ST Screen Dump Info Sought
From: John Purbrick
Date: Sat, 04 Mar 1989 06:49
Date: Sat, 04 Mar 1989 06:49
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> ... for the Atari Laser Printer (SLM804) there's a screen dumper that > steals the Alt-Help and outputs the correct data over the DMA to print > to the laser printer... > --Kenneth Soohoo (soohoo@cory.Berkeley.Edu) How does a program do this? Presumably terminate-and-stay-resident, but how does it intercept keypresses? A couple of years ago Moshe Braner (where's he gone?) posted a program which did this but it shoved the screen into a reserved area of memory he called the "barrel"; then you could dump the barrel to a Degas file. I'd like to try writing a program which instead created a .TNY format screen file every time alt-help was hit.
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arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!ncar!unmvax!tut.cis.ohio-state.edu!bloom-beacon!hermes!jpexgReferences:
<3958@druhi.ATT.COM> <10597@pasteur.Berkeley.EDU>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!ncar!unmvax!tut.cis.ohio-state.edu!bloom-beacon!hermes!jpexg From: jpexg@hermes.ai.mit.edu (John Purbrick) Newsgroups: comp.sys.atari.st Subject: Re: Atari ST Screen Dump Info Sought Summary: How does a program "steal the alt-help"? Message-ID: <3292@hermes.ai.mit.edu> Date: 4 Mar 89 06:49:36 GMT References: <3958@druhi.ATT.COM> <10597@pasteur.Berkeley.EDU> Organization: MIT AI Lab, Cambridge, MA Lines: 13