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From: bobb@tekfdi.UUCP (Robert Bales)
Newsgroups: net.micro.amiga
Subject: Observation and questions
Message-ID: <250@tekfdi.UUCP>
Date: Thu, 13-Feb-86 02:35:09 EST
Article-I.D.: tekfdi.250
Posted: Thu Feb 13 02:35:09 1986
Date-Received: Fri, 14-Feb-86 00:31:02 EST
Distribution: na
Organization: Tektronix, Beaverton OR
Lines: 42



Just like (almost) everyone else, I'm waiting for the Amiga manuals. Luckily,
I have been able to ocasionally borrow some old manuals from my dealer. But
they don't answer all the questions ! -)

First, an observation: the "complement" drawing mode doesn't work as I would
expect. According to the ROM Kernal Manual, this mode will "for each 1-bit in
the primary drawing pen (FgPen), complement (reverse the state) the
corresponding bit in the target drawing area." For example, if the primary
pen is set to color 2, I would expect the transformations 0->2, 1->3, 2->0,
3->1, etc. (Only the "2" bit complemented.) However, all bits seem to be
complemented. Interesting.

Is there a way to move the mouse pointer to a certain point on the screen?
For a CAD-type graphics program, I would like to be able to enter numerical
co-ordinates from the keyboard and have the pointer move there and then be
movable from that location via the mouse. I am using a borderless, backdrop
window covering the entire screen, so don't have to worry about the pointer
position with respect to my window.

Some thoughts on the above: the pointer is hardware sprite 0, so if I could
find (how?) the location of the definition structure, maybe I could use
"MoveSprite()". Also, when the grid is enabled in DeluxPaint(tm), the pointer
jumps from point to point, so it must be possible to control it apart from
Intuition.

Is there a way to create a window which can't be activated? I would like to
overlay status (text) information on a graphics display and have it protected
against graphics writes. This display is to be output only; I still want the
background window to be active, even if the mouse is "clicked" in the display
area. Must I manage everything myself?

In menus, how does one get Intuition to toggle the check mark of an item?
Setting MENUTOGGLE with or without CHECKIT doesn't do it: with, the item is
always checked after it is first selected, without, the item is never
checked.

Thanks for any help.

    Bob Bales
    Tektronix, Inc.Subject: observation and questions