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I solved the problem as following instruction; Delete local user profile by admin account Login again, it will recreate local user profile Open VS Install Qt extension Create different temporary Qt profile Change project's Qt profile to new one and apply Rechange Qt profile to back/orginal one Delete temporary Qt profile that all !

@hskoglund It works. Thank you !!

Maybe QAbstractItemModel::match() - but custom stuff is faster I would guess

@pauledd: Nice to hear, can you please mark the topic as solved, thx :)

Have you tried wikipedia?

@mrjj I see, thank you. I'm going for that route then

@dheerendra Thanks it works

I'd like to just create, say Tab2, but not actually display this tab. Simply QWidget* tab2 = new Tab2(). But somehow have a handle to the tabs I do not add yet The pointer is a"handle". so that I can add and remove them at will. Just use addTab/removeTab as in your example whenever you need.

@bogong Issue closed. so go and mark the issue as solved. Thanks.

Even two if you take the QtScxml module. Well, I am not behind the design of the system so I can just offer some thoughts. I would say that if you need that level of control of the event loop, you might not be using the right tool for your use case.

@crystalidea Whats your XCode version ?

@clhallinan said in Qt Creator: How to access QLabel inserted by Ui Designer from MainWindow.cpp: I'm gaining competency w/ C++, but a beginner w/ Qt. Your question relates to general C++ programming rather than anything Qt. @Gerhard's reply above is correct. When you declare class methods or variables, you normally do not put static in from of them. This means they have to be accessed via an instance of the class, by one of instancePtr->method(); instance.method(); If however you have declared the method/variable with static then you do not access it via an instance. That is the time where you go ClassName::method(); so you are using the ::. That is what the error message was telling you. You might want to read up on the use of the static keyword in C++, for future reference.

I can choose the installed Qt version on the solution, but on the project everything is still disabled... I have sucessfully compiled a Qt project at home where I have VS 2017, here at work I have VS 2019. Anybody having issues on the 2019 integration?

Rebooting computer fixed. It was not enough to restart Qt Creator, I had to reboot. I might have been fixed if I just logged out, I don't know. Sounds like a X11 issue.

You're welcome ! Since you have it working now, please mark the thread as solved using the "Topic Tools" button so other forum users may know a solution has been found :-) Seems the cache hid the fact that you did everything already !

if (ui.ComboBox->count() == 0)

Maybe a dependency is missing so the dll can not be loaded -> use Dependency Walker to see what dependencies you're missing.

Hi @simozz, https://github.com/ohwgiles/quilte is a project that does this more or less - it's a terminal emulator written in Qt. It has dependencies however and will not work on Windows, if I get it right. But it should show you the principle. Regards