Problems with Multiple Monitors

[Gabe J]

I've discovered that LiveCode (at least LC 9.6.1) seems to force the
reported top of a manually-moved stack to be the bottom of stack
"revMenubar" + 20, if the stack is overlapping revMenubar (even if
revMenubar is not visible), even if the visual top of the stack is higher
than that. All mouse clicks will be vertically off by whatever offset there
is between the bottom of stack "revMenubar" + 20 and the visual top of the
overlapping, manually-moved stack.

For example, if you were to run this:

    set the bottom of stack "revMenubar" to 200

And then move a stack so that it overlaps revMenubar (manually moving the
stack seems to possibly be a necessary step), if you run "put the top of
..." for that overlapping stack, it will be 220, even if it is visually
above 220, and mouse clicks in the stack will also be vertically off.

If I set the position of stack "revMenubar" so that its bottom is above the
highest working screenRect's top + 20 (or whatever the height of the
window's title bars are?), this issue can be avoided. I have made a handler
which does this when the screenRects change.

I ran into another potential bug where the bottom of a stack couldn't be
positioned in a certain area without it also reporting the top/mouseclicks
incorrectly on a second screen above my laptop's screen, but I haven't
figured out why that is, yet.

Gabe


On Thu, May 6, 2021 at 9:58 AM Roger Guay via use-livecode <
use-livecode at lists.runrev.com> wrote:

> Hi Fred et al,
>
> I use the following script to switch the monitor I wish to use for the
> revmenubar and revTools and then position pallets like my own rTools and
> tmAlign3. It is working quite nicely for me with my external monitor
> positioned above my MBP and “Displays have separate spaces” unchecked.
>
>
> on mouseUp
>
> put the screenrects into tsr
>
>         if the number of lines of tsr = 2 then
>
>                 if the left of stack revmenubar = item 1 of tsr then
>
>                         set the left of stack revmenubar to item 1 of line
> 2 of tsr
>
>                         set the top of stack revmenubar to item 2 of line
> 2 of tsr + 25
>
>                 else
>
>                         set the left of stack revmenubar to item 1 of tsr
>
>                         set the top of stack revmenubar to item 2 of tsr +
> 25
>
>                 end if
>
>         end if
>
>         positionPalletes
>
>         pass mouseUp
>
> end mouseUp
>
>
> on positionPalletes
>
>         set the top of stack revtools to the bottom of stack revMenuBar +
> 20
>
>         set the left of stack revTools to the left of stack revmenubar
>
>         set the top of stack rtools to the bottom of stack revMenuBar + 20
>
>         set the left of stack rTools to the right of stack revtools
>
>         set the left of stack tmAlign3 to the right of stack revMenubar
>
>         set the top of stack tmAlign3 to the top of stack revMenubar
>
> end positionPalletes
>
>
>
> HTH,
> Roger
>
>
>
> > On May 6, 2021, at 1:41 AM, Fred Moyer via use-livecode <
> use-livecode at lists.runrev.com> wrote:
> >
> >
> >
> >> On May 4, 2021, at 5:32 PM, Fred Moyer <fmoyer at aol.com> wrote:
> >>
> >> Anyone having problems with multiple monitors and LC? I’m running 9.6.1
> - Mac. I have a feeling LC is confused because I like to connect and
> disconnect monitors from my MacBook Pro. (Even the MacOS sometimes gets
> confused.) But now LC is doing crazy things — even when no external
> monitors are connected. I’ll move the mouse to the top of a stack window,
> and ask for the Mouseloc and it will return something like "100,-60”. If I
> click a button in the middle of the stack, the click will register in an
> object the 60 pixels above that. It’s not always 60 — the wrongness changed
> as I move the stack around. Other times it works fine. I can’t find a
> pattern to set it off.
> >>
> >> Any suggestions?
> >> Thanks.
> >>
> >> Fred
> >>
> >>
> >
> > Thanks everyone for the interesting replies. I learned a lot
> (“desktopChanged", "the working screenrects,” difference between "the
> screenrect" and "the screenrects," etc.) I have a hunch, though, my problem
> may relate to stack RevMenubar and some accommodation the IDE makes for
> “the mouseV” depending on whether RevMenubar is showing or whether you have
> your own menubar or whether that screen has a menubar in it  —  I dunno.
> I’ve never understood how this works. I notice sometimes, though, when I
> turn on Toolbar Text, it shows up about 100 or 200 pixels down.
> >
> > Fred
> > _______________________________________________
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