Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!bcm!rice!uw-beaver!ubc-cs!alberta!alberta!cpsc.ucalgary.ca!news From: wieser@fsd.cpsc.ucalgary.ca (Bernhard Wieser) Newsgroups: comp.sys.mac.system Subject: Re: Printing questions... Message-ID: <1991Jan31.160516.19607@cpsc.ucalgary.ca> Date: 31 Jan 91 16:05:16 GMT References: Organization: U. of Calgary Computer Science Lines: 18 Nntp-Posting-Host: fsd Hi. Take it from someone doing this stuff: don't play with fire. A PREC is a print record stored with the driver. EACH DRIVER USES DIFFERENT FIELDS IN THE PREC FOR DIFFERENT THINGS. There is no uniformity. Get the document 'Learning to Drive' from AppleLink (so I'm told). Quickdraw is not re-entrant. Most drivers spool by patching QDprocs and using openpicture/close picture. You definitly should NOT do this from your printing port. If low memory globals are used (they might be), even using another port might be dangerous. ANyone else got an opinion? -- ( Bernie Wieser, wieser@cpsc.ucalgary.ca, BSWieser@uncamult.BITNET ) ( 4rth Year Dbl.Mgr Cpsc Clhc University of Calgary | ) ( S/H Developer Dept. of Psychology, " " " \|/ ) ( Octavian Micro Development Group --- o --- )