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Newsgroups: comp.sys.apple2 Path: news.weeg.uiowa.edu!news.uiowa.edu!hobbes.physics.uiowa.edu!math.ohio-state.edu!howland.reston.ans.net!europa.eng.gtefsd.com!uunet!comp.vuw.ac.nz!actrix.gen.nz!dempson From: dempson@swell.actrix.gen.nz (David Empson) Subject: Auxiliary types (was Re: Space Fox and System 6?) Organization: Actrix Information Exchange Date: Wed, 2 Feb 1994 14:05:20 GMT Message-ID: <CKLoGx.9rJ@actrix.gen.nz> References: <2ie9os$jli@panix.com> <CKF7Gt.4ov@well.sf.ca.us> <CKIBFM.3vu@tsoft.net> Sender: dempson@actrix.gen.nz (David Empson) Lines: 43 In article <CKIBFM.3vu@tsoft.net> prisoner@tsoft.net (The Prisoner) writes: > Uh... I think the Auxtype should be $DB02... way back when System 6 was just > released, I contacted Dave Lyons and described the Problem and after > I switched all the $B3 and $B5 files to a $DB02 Auxtype and they > worked fine... something about Smoothlaunch... For GS/OS applications and shell EXE files (types $B3 and $B5), the last digit of the auxiliary type is defined on a bit-by-bit basis. The high byte must be $DB, or the low byte is invalid. Bit 0 means the application is GS/OS aware, in that it uses prefix numbers 8 and higher, rather than the ProDOS-16 prefixes (0 through 7), and can cope with long pathnames. Bit 1 means it is a desktop application, and is able to cope with the super hi-res screen being active when the program starts up (or the text screen, for that matter). Bit 2 means it is "message aware" - it uses the pathname message supplied by Finder when you launch an application by double-clicking a document (or selecting the document then using the Open or Print command). Thus, the valid auxiliary types are: Message aware Desktop app GS/OS aware $DB00 No No No $DB01 No No Yes $DB02 No Yes No $DB03 No Yes Yes $DB04 Yes No No $DB05 Yes No Yes $DB06 Yes Yes No $DB07 Yes Yes Yes This is documented in the File Type Notes for file types $B3 and $B5. Refer there for more information. -- David Empson dempson@swell.actrix.gen.nz Snail mail: P.O. Box 27-103, Wellington, New Zealand