Windows intermittently jump to a location on the screen when I move windows.
It’s got too annoying to ignore.
• Is anyone else having this problem?
I am testing this on Mojave and Livecode 9.6.1 rc2. I am testing this without
any of my own code such just was IDE stacks. This I “think” is quite a long
standing bug that I suspect is related to the global coordinate system as I
have been working around this for quite a while now.
Detail
The location of the jump seems to be the same horizontal x location. But with
the vertical value being reset to the halfway point.
I am testing by. Simply moving the message box. It is intermittent - so
occurring about once every 5 moves, and strangely is happening only when the
top left of the stack window is within the top left quadrant of the screen.
Using. The following code int eh message box I find the top of the message box
stack is always 492 after a jump (see below). This appears to be related to
half the screen less the decorations like menu?
put the screenrect & CR & the rect of stack” Message box"
0,0,1680,1050
215,492,634,640
As a further indication that the problem is due to the IDE, I find that
creating a test stack (no scripts or controls) exhibits the same behaviour -
but this behaviour can be suppressed by choosing “Suppress Messages” from the
“Development” menu. This suppression has no effect on the message box or other
IDE windows which still jump intermittently.
The problem is most intense when working with multiple screens. For at least a
couple of years stacks I create and place on second or third monitors receive
mouse clicks in the wrong location. This happens on different machines, and
different. Monitor setups. Only tested on Macs.
I am currently creating a multiscreen app - so taking the tracking down. Of
this bug more seriously. The current tests are one on my laptop without
external monitors, and having restarted the computer (several times).
Applications other than Livecode don’t suffer this problem.
How should I report this bug - should I submit a video / screen recording?
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