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- Path: sparky!uunet!munnari.oz.au!metro!grivel!metz.une.edu.au!manker
- From: manker@metz.une.edu.au (Maurice Anker)
- Newsgroups: comp.sys.apple2
- Subject: Using a mouse on Apple IIe/gs - help
- Message-ID: <1495@grivel.une.edu.au>
- Date: 28 Jul 92 06:53:28 GMT
- Sender: usenet@grivel.une.edu.au
- Lines: 33
-
-
- Can somebody please help me?
-
- I have written a graphics-based program for the Apple iie which uses mouse,
- joystick or keyboard as alternative input devices for controlling the cursor
- location. The mouse is operated in passive mode and is polled in turn with
- the other devices.
-
- The problem is this: the program works fine on a iie or Mac LC/iie card,
- but on a iigs, movement of the mouse causes the cursor to alternate rapidly
- between 2 different locations on the screen. Occasionally, incorrect values
- of the status byte are also returned leading to invalid mouseup or mousedown
- events.
-
- I have studied the iigs manuals and the technical note TN.mous.1 concerning
- the interrupt environment on the gs and as far as I can see, the program is
- written in accord with those guidelines. I have tried a number of variations
- including making 2 calls to MOUSEREAD and discarding the first set of values
- returned, but to no avail.
-
- Can anyone suggest a solution or point me to further documentation or
- examples of mouse use on the gs (in iie emulation mode).
-
- I can be contacted at manker@metz.une.edu.au
-
- Thanks
-
- Maurice Anker
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