<![CDATA[QMainWindow and its children vs visibility at focus change/minimizing]]>Hello,

I have a QMainWindow instance with bunch of QDialogs and QWidgets set as its childern. User may open them by clickin some actions on menubar. What is happening, that in fact I don't want to be happenin:

  • when I minimize main window its children are minimized as well (I guess because they are its children)
  • when I have some dialog/widget opened (visible) it stays ON TOP of the main window even if I click in the main windows area (focus thingy i guess)

My question is:

  • is there a non-complicated solution to fix this behaviour? Idk.. like settings a flag? something like that, I cannot find anything in docs (at least so far)

What I came across during searching:

  • 'orphaning' children :D (setting their parent to Q_NULLPTR) inside stateChanged event and turning it back again depending on the event type.
    I did not test/used it yet since out of curiosity I wanted to ask you guys about it? Do you think above solution is sensible enough to be used or are there any other better ones?

Best Regards,
M.

]]>https://forum.qt.io/topic/69488/qmainwindow-and-its-children-vs-visibility-at-focus-change-minimizingRSS for NodeTue, 16 Jun 2026 05:50:15 GMTWed, 20 Jul 2016 20:25:42 GMT60<![CDATA[Reply to QMainWindow and its children vs visibility at focus change/minimizing on Wed, 20 Jul 2016 20:48:23 GMT]]>Can you point me to this thread (just in case - I may find something usefull there)?

]]>https://forum.qt.io/post/338618https://forum.qt.io/post/338618Wed, 20 Jul 2016 20:48:23 GMT<![CDATA[Reply to QMainWindow and its children vs visibility at focus change/minimizing on Wed, 20 Jul 2016 20:45:30 GMT]]>@michelson
Well often :)
There was a thread not so long ago talking
about how to delete the dialogs later.
If you make them members, its pretty basic.

]]>https://forum.qt.io/post/338616https://forum.qt.io/post/338616Wed, 20 Jul 2016 20:45:30 GMT<![CDATA[Reply to QMainWindow and its children vs visibility at focus change/minimizing on Wed, 20 Jul 2016 20:42:29 GMT]]>Simplest solutions are the best - thank you!
I kinda feel really dumb now :D
Anyway - solved.

]]>https://forum.qt.io/post/338614https://forum.qt.io/post/338614Wed, 20 Jul 2016 20:42:29 GMT<![CDATA[Reply to QMainWindow and its children vs visibility at focus change/minimizing on Wed, 20 Jul 2016 20:38:57 GMT]]>Hi
Have you tried simply not to give the dialogs a parent?

MyDialog * dia= new MyDialog ();

You will need to delete them your self when app is closing.

]]>https://forum.qt.io/post/338612https://forum.qt.io/post/338612Wed, 20 Jul 2016 20:38:57 GMT