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From: culmer@grad1.cis.upenn.edu
Newsgroups: comp.sys.apollo
Subject: Where's the beep?
Message-ID: <12155@netnews.upenn.edu>
Date: 18 Jun 89 23:00:23 GMT
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Reply-To: culmer@grad1.cis.upenn.edu ()
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Organization: University of Pennsylvania
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I have some questions and problems as a result of trying to write some
simple data entry screens.  I have a model 3000, version 9.7 Aegis, and
version 9.5 Domain/IX.

(1)  I can't make the thing beep consistently.  I wrote the following
little program:

main()
{
char c;

while((c = getchar()) == '\n')
     printf("%c", (char) 7);
}

This should beep every time I hit return, right?  But it beeps 10 or so
times, then doesn't beep 10 or so times, then beeps, and so on.  I don't
understand.  It doesn't sound like a bad beeper.

(2)  I want to be able to use the mouse to jump to different fields on
the screen.  That means I have to create a frame, right?

I'm using pad_$cpr_enable to get cursor position reports when the mouse
stops moving.  When the arrow turns into a block cursor, I want it to be
positioned in a line and a column, but it's not.  It happily straddles
two lines.  I don't know whether I should have to feed the position back
into pad_$move.  I do it, but it doesn't solve the problem.

(3)  The inverse video font behaved strangely.

I wanted to print a field of 20 spaces at position (10, 10) with inverse
video font.  I don't remember the precise syntax, but I did the following
after loading and using the inverse font:

     pad_$move(..., 10, 10, ...)            go to 10, 10
     pad_$put_rec(..., &space_array, ...)   print spaces
     pad_$move(..., 10, 10, ...)            go to 10, 10
     pad_$get_rec(..., &c, ...)             get character from keyboard
     pad_$put_rec(..., &c, ...)             print character from keyboard

When I print the input character at (10, 10), its inverse video box comes
out one pixel lower than the box for the space that was there before.  Am
I doing something wrong?  It seems to me that the cursor should end up in
the same place each time I move it to (10, 10).

(4)  Is X Windows similar to this pad stuff?

Thanks.

Charles W. Culmer
culmer@grad1.cis.upenn.edu        Truth, justice, and the Canadian way