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- Path: sparky!uunet!ukma!usenet.ins.cwru.edu!agate!apple!apple!macwinders.support.apple.com!user
- From: winders@aux.support.apple.com (Scott Winders)
- Newsgroups: comp.sys.mac.system
- Subject: Re: Killing Cmd-Opt-Space in Sys 7.x
- Message-ID: <winders-171192184605@macwinders.support.apple.com>
- Date: 18 Nov 92 02:46:34 GMT
- References: <1992Nov16.045250.16853@ultb.isc.rit.edu> <1992Nov16.114430.11680@tdb.uu.se>
- Sender: daemon@Apple.COM
- Followup-To: comp.sys.mac.system
- Organization: Apple Computer, Inc.
- Lines: 95
-
- In article <1992Nov16.114430.11680@tdb.uu.se>, bredell@tdb.uu.se (Mats
- Bredell) wrote:
- >
- > M.A. Weissman (maw5506@ultb.isc.rit.edu) wrote:
- > : I commonly use a Dvorak KCHR layout on my Mac running system 7.1. Inside Mac
- > : documents a really neat feature of switching KCHR layouts every time you hit
- > : Cmd-Opt-Space. This is great if other people wish to use my machine.
- > :
- > : Unfortunately it is not so great if I want to zoom-out in Adobe
- > : Illustrator which just so happens to use...you guessed it...Cmd-Opt-Space.
- > :
- > : Does some kind soul out there know how to modify the system to ignore,
- > : or use a different key combination, for the command. I am familliar with
- > : ResEdit, and any help would be appreciated.
- >
- > Why not yell at Adobe for using that key sequence? It's their fault if they
- > use reserved key combinations.
-
- The entries in the 'KSWP' system resource (ID = 0) is what controls
- the switching of the keyboard layouts. Actually, the entries in the
- 'KSWP' resource control more than that. This resource is fully
- documented in Inside Macintosh Volume VI, pages 14-43 to 14-44 and
- pages 14-98 to 14-99.
-
- The standard U.S. 'KSWP' resource looks like this:
-
- FFFF 3101 FFFC 3109
- FFFE 4601 0000 4201
- 0000 0000
-
- Each long word entry controls a separate function. The first 2 bytes
- (integer) is the verb that the KeyScript procedure will act upon. The
- third byte is the virtual key code for the key that must be pressed
- and the fourth byte is the modifier state that must exist when the
- key is pressed.
-
- Table 14-3 on page 14-44 outlines the verbs for the KeyScript procedure.
-
- Most of the virtual key codes may be found on pages 191 and 192 of
- Inside Macintosh Volume V or by using ResEdit on the 'KCHR' resource
- in the System file.
-
- Note on modifier state: Option key down is equal to 8; Shift key down
- is equal to 2; and Command key down is equal to 1. If multiple modifier
- keys are pressed at the same time, their values are added together for
- the modifier state entry.
-
- The second entry in the standard U.S. 'KSWP' resource (FFFC 3109) is
- the one that causes the problems you describe. The first two bytes,
- $FFFC or -4, is the verb "smKeyNextKybd" which means "Switch to next
- keyboard in active script". The third byte, $31, is the virtual key
- code for space. The fourth byte is Command key down (1) plus the
- Option key down (8) which equals $09.
-
- There are three methods we can use to solve the problem. One method
- is to delete the entry that causes the problem. The 'KSWP' resource
- would then look like this:
-
- FFFF 3101 FFFE 4601
- 0000 4201 0000 0000
-
- The second method is to change the virtual key code to something
- different than $31. If we change it to $4C, Command, Option, and
- Enter would switch keyboard layouts. The 'KSWP' resource would look
- like this:
-
- FFFF 3101 FFFC 4C09
- FFFE 4601 0000 4201
- 0000 0000
-
- The third and final method would add two new entries to the 'KSWP'
- resource. One would disable switching from the current keyboard
- (verb "smKeyDisableKybdSwitch") and the other would enable keyboard
- switching (verb "smKeyEnableKybds"). We've set it up so Command,
- Option, and Enter disable switching and Command, Option, and Return
- enable switching. The 'KSWP' resource would look like this:
-
- FFFF 3101 FFFC 3109
- FFFE 4601 0000 4201
- FFF4 4C09 FFF9 2409
- 0000 0000
-
- Any one of the above methods will work. The first method is rather
- limiting and is not very flexible. The second method is the most
- straight forward and probably the best. The third method is the most
- flexible and the most complicated from a user point of view.
-
- Note: the four bytes of zeroes at the end of the resource are filler
- and must be present.
-
-
- Scott Winders
- winders@aux.support.apple.com
-
- "My opinions are my own, not my employer's"
-