[Lazarus] Qt/Qt5 users - need trunk testing

[zeljko]

On 4/5/20 8:09 PM, Alexey Tor. via lazarus wrote:
> after updating Laz to today's trunk, CudaText qt5 build has broken look 
> of tabs. angled side of tab. and X sign. they are painted via 
> canvas.StretchDraw.

I've tested with old code (before stretchdraw changes) and it's same 
problem (I've already write notes at issue). Please create simple 
example and attach to the issue. Your paint code is pretty complex and I 
don't have enough free time to study your code and search for problem.
I guess that there's something with QScreen_grabWindow() , maybe 
coordinates from ATTabs are bad or similar. NOTE: I've tested with 
lazarus trunk from 4.1.2019 (so 15 months old trunk) and it have same issue.

zeljko