Get a window back on normal level after put it on top level

adinon

Hello guys!
On my window i have a checkbox button that allows me to put the window on top level when it is checked and on normal window when it is unchecked. This is how i am trying to reach that but it is not working.
Thanks for help!!

    Qt::WindowFlags flags = this->windowflags();
           if(ui->istopLvlcheckBox->isChecked()){
               flags |= Qt::WindowStaysOnTopHint;
            }else{
                flags &= ~Qt::WindowStaysOnTopHint;
            }
            this->setWindowFlags(flags);
           this->show();

SGaist

Hi and welcome to devnet,

Can you check the window flag example to see it's working properly ?

adinon

First of all thanks for your reply. I already tried that example and when I check the <<Window stays top>> checkbox it goes to top level but when I unchecked or check <<Window stays bottom>> checkbox it still says top level.

SGaist

Which OS/Qt version are you running ?

adinon

Ubuntu 16.04 LTS
Qt Creator 4.0.3
Based on Qt 5.7.0 (GCC 4.9.1 20140922 (Red Hat 4.9.1-10), 64 bit)

SGaist

That's the Qt Creator version, which one is Qt itself ?

Also, can you test the same thing with your distribution provided Qt ?

adinon

I am using Qt 5.7.0.
I did test it but it is the same result.

SGaist

Try adding the Qt::X11BypassWindowManagerHint to your calls changing the flags.

adinon

According to the documentation Qt::X11BypassWindowManagerHint means that the window will be borderless
and that is exactly what it becomes when I add that flag. The point is when i try to debug the code in my first message like this (qDebug() << windowFlags() ), I have something like this:

when the checkbox is checked:

QFlags<Qt::WindowType>(Window|X11BypassWindowManagerHint|WindowTitleHint|WindowSystemMenuHint|WindowMinMaxButtonsHint|WindowStaysOnTopHint|WindowCloseButtonHint|WindowFullscreenButtonHint)

--when it is unchecked :

QFlags<Qt::WindowType>(Window|X11BypassWindowManagerHint|WindowTitleHint|WindowSystemMenuHint|WindowMinMaxButtonsHint|WindowCloseButtonHint|WindowFullscreenButtonHint)

As you can see when it is unchecked there is no WindowStaysOnTopHint flag anymore but i do not know why it is not working.

SGaist

Might be related to QTBUG-53711

adinon

Thank for all your replies by the way.