Minimized windows shown as small rectangles

[wysota]

Does it work correctly if you build your program from the command line and not inside Qt Creator?

[midi-pascal]

Thanks for replying!

Nope.
After make clean and make on command line I get the same result.
I build the mdi Qt example to see what happens and minimized windows behave correctly.
Something in my app turned wrong at some point but I cannot see what could cause the problem.
This app is not a new project and used to work well until the upgrade.
Where is the code that displays the minimized tab?
I am ready to debug a lot but I do not know where to look at...

My subwindows inherit QDialog, are fixed size and I disabled maximize option with the window flags.
I tried to remove all the window options but the problem is the same

[wysota]

Thanks for replying!

Nope.

So why post your question in a forum related to Qt Tools and not Qt Programming?

Something in my app turned wrong at some point but I cannot see what could cause the problem.

Check your sizeHints and styles (and stylesheets).

My subwindows inherit QDialog

Hmm... why? It doesn't make much sense.

[midi-pascal]

Sorry.
Wrong place to post, and the problem was me.
I used wrong params to call addSubWindow() to the MdiArea.
The problems showed up now because the app was not recompiled for a while so I thought it was the Qt upgrade.
Shame on me, sorry.