Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!pasteur!ucbvax!decwrl!sun!pitstop!sundc!seismo!uunet!mcvax!philmds!leo From: leo@philmds.UUCP (Leo de Wit) Newsgroups: comp.sys.atari.st Subject: Re: GDOS Handles Message-ID: <554@philmds.UUCP> Date: 7 Jul 88 15:35:49 GMT References: <8807061204.AA27467@ucbvax.Berkeley.EDU> Reply-To: leo@philmds.UUCP (Leo de Wit) Organization: Philips I&E DTS Eindhoven Lines: 19 In article <8807061204.AA27467@ucbvax.Berkeley.EDU> ONM07@DMSWWU1A.BITNET writes: >Date: 6 July 1988, 13:58:58 MES >From: Julian F. Reschke (02501) 13279 ONM07 at DMSWWU1A >Concerning Leo de Wit's program to read characters from screen: > >PLEASE NEVER NEVER NEVER do VDI-calls with a zero-handle. Valid VDI >handles start at 1! Calling a VDI-function with zero-handle will result >in an error when working with Atari's brand new GDOS (AMCGDOS)! You're right; the graf_handle() function can be used to get the desktop's handle. B.T.W. I was a bit puzzled, because the VDI call has nothing to do with the program; it was merely a remark about getting the cursor position. The program source followed in the same posting, but doesn't even use VDI or AES (only a Line-A exception is used to get the font parameters). It should be correct as it stands. Leo.