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- Message-id: <Pine.BSF.3.91.960323000506.579A-100000@starfleet.gov>
- Subject: Problem with E/DOS's handling of CAPS LOCK
- Cc: Executor Mailing-List <executor@ardi.com>
- To: Executor Bugs <bugs@ardi.com>
- Content-type: TEXT/PLAIN; charset=US-ASCII
- X-sender: d_burr@starfleet.gov
- From: Donald Burr <d_burr@ix.netcom.com>
- Date: Sat, 23 Mar 1996 00:23:09 -0800 (PST)
- Sender: owner-executor@ardi.com
- Precedence: bulk
-
- I've discovered a problem in the way Executor handles CAPSLOCK. Please
- allow me to explain.
-
- On typical Macs, the Caps Lock key is a simple LOCKING mechanical switch.
- Like most mechanical switches, it can be in either one of two states: OFF
- and ON. (will be represented by 0 and 1, respectively) Since the Mac's
- CAPS LOCK button is LOCKING, if you push it once, it "clicks" and stays
- down, thus the CAPS LOCK key is set to the 1 state until you press it
- again and "click" it off.
-
- On the PC, it is different. Again, the PC's CAPS LOCK key is a simple
- mechanical switch, and can be either turned on (1) or off (0). BUT, the
- PC's CAPS LOCK key is NOT a locking key -- it does not stay down when you
- press it. Thus, if you press the CAPS LOCK KEY once, it toggles briefly
- to the ON (1) state, then returns to the OFF (0) state. The KEYBOARD
- CONTROLLER in the PC is responsible for handling capslock, and so it
- isn't as simple as on the Mac.
-
- So, how does this affect Executor?
-
- The other night, I was playing Maelstrom. Suddenly the phone rang. I
- said "Damn!" and went to pause the game. To do this you turn on Caps
- Lock. Well, unfortunately, here's what happend: for the BRIEFEST of time
- (about 1 second), the "Game Paused" screen flashed on... then, the game
- resumed again. "Eh?" I thought. Well, my game was toast anyway, so I
- quit to dos and checked my caps lock key. It worked ok, all right. So
- then I thought it might be a bug in how Maelstrom runs under Executor.
- So I tried a different application -- Microsoft Word. I engaged the CAPS
- LOCK and typed in some stuff. Darn it, but the stuff didn't appear in
- caps! "Feh!"
-
- Well, after some experimentation (and hair-pulling), I discovered that:
-
- * Maelstrom will stay paused if I hold down the CAPS LOCK key. The
- minute I let it go, the game resumes.
- * I can type capital letters in MS Word, TexEdit, etc... IF I hold down
- the CAPS LOCK key while doing so. The minute I release it, back to lower
- case.
-
- During all of these shenanigans, the CAPS LOCK light on my keyboard is
- on, though!!!
-
- My guess is that, instead of checking the PC's keyboard controller or
- whatever else that controls the PC's caps lock facility, Executor is
- using the state of the CAPS LOCK KEY ITSELF (down or up?) to determine
- caps lockishness. So, since the caps lock in PC"s is done by software (a
- control bit in the PC keyboard controller or whatever) rather than
- Hardware (a physical key being "locked down") as is on the Mac, programs
- like Maelstrom and MS Word, which probably work like this:
-
- if (caps_lock_key == PRESSED_DOWN)
- {
- printf("Game Paused - Unclick Caps Lock to continue");
- } else do_game();
-
- do not work right.
-
- I know many people don't use CAPS LOCK out there, but many people do, and
- anyway it would probably be a good thing to fix or at least investigate ASAP.
-
- This is under E/DOS 1.99q11. Oddly enough, the caps lock works perfectly
- under E/Linux 1.99q9.
-
- Donald Burr [d_burr@ix.netcom.com], PO Box 91212, Santa Barbara CA 93190-1212
- TEL (805)564-1871 / FAX 564-2315 / WWW http://www.geopages.com/WallStreet/2072
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