Qt 5.12 Release Combo Box -> Bug! Bug! Bug!

[X-Crack]

I took the lead in downloading the latest version of the [5.12] web address: https://download.qt.io/archive/qt/5.12/5.12.0/single/

After compiling, I found the latest ComBo Box with the following problems.
The problem I did not exist with Qt5.9.6 I used before.

I don't know how to feedback BUG, if anyone will submit a BUG, please submit.

thank you very much.
I demonstrated the problem with QT5.12.

The following is QT5.9.6, without any problems. normal display.

[dheerendra]

Do you see this issue when you compile & run your program ?

[X-Crack]

Yes, this problem has always existed.
You can open "designer".
It is very intuitive to see this problem.

[dheerendra]

Ok. Help me to understand. Did you compile the program ? Did you run it ? Did you see the issue ? I'm wondering is it just a issue in the designer only ?

[X-Crack]

@dheerendra

yes.

[dheerendra]

You are telling it is not just a Designer issue. When you run the program also you see the same behaviour. Can you download from official release and then see it ?

Also wait for final release of 5.12.x. If you see the same, then file a bug.

[X-Crack]

Please check, my demo, crash when the program closes!!

[aha_1980]

@X-Crack please provide a minimal compileable example as zip file for us to reproduce the problem. Thanks!

[jsulm]

@X-Crack said in Qt 5.12 Release Combo Box -> Bug! Bug! Bug!:

I don't know how to feedback BUG, if anyone will submit a BUG, please submit.

Well, see this https://wiki.qt.io/Reporting_Bugs

[X-Crack]

@aha_1980
https://github.com/X-Crack/Legend-of-Mir2/tree/master/Interprocess
Please manually configure QT Include

[X-Crack]

@jsulm @aha_1980 @dheerendra

Why is the application not using the default "Aero" style when compiling in version 5.12?

As shown in Figure 3.

[jsulm]

@X-Crack I don't know. I don't know what your app is doing. Do you use style-sheets?
Did you delete the build directory and rebuild completely then with Qt 5.12?
Just a note: there is no need to write "Bug!" 3 times in the title.

[X-Crack]

@jsulm
Yes, I didn't use a style sheet.

But the previous version is the default program with Aero effect, it looks very beautiful.

Compiled now, there is no such beauty, the style of the "xp" system, I don't know.

[aha_1980]

@X-Crack can you create a minimal example out of your program? Otherwise its hard to find the origin of the problem.

[X-Crack]

@aha_1980
Sorry, my project is complicated to build.
I am a statically compiled QT source code.
But the problem is already very clear.
I believe that more people will react to the same problem in the near future.

This kind of problem can also be presented in the official installation package given by "Qt Creator".

You can try it!

[jsulm]

@X-Crack said in Qt 5.12 Release Combo Box -> Bug! Bug! Bug!:

I am a statically compiled QT source code.

This is something you should have said at the beginning!
You're not using official build.
My guess is that you're missing the correct style in plugins/styles.

I just tried on my Windows 10 machine with Qt 5.12 MinGW - it looks like it did before. So, I cannot reproduce your issue.

[VRonin]

Sorry, am I the only one that doesn't see what the alleged bug is?

[mrjj]

@VRonin
I also wondered that. Maybe that dropdown list is slightly offset
in the "bad" example.

[jsulm]

@mrjj No, I think it is how it looks: it looks like old style Windows theme (Windows XP/2000). Simple screen-shots without animations would be better...

[mrjj]

@jsulm
Ahh, Good Catch. I was focusing on excessive open/close :)