@marcbf said in Remember window size before maximization (or Detect if QResizeEvent is maximization):

int w = currentSize.width();
int h = currentSize.height();

if (restoresize)
{
w = qMax(settings["Width"].Value(0), w);
h = qMax(settings["Height"].Value(0), h);
}

Man, this is the deal!!! Everything worked perfectly after I fine tuned your code to my context! Thank you very much.

The trick was really to use normalGeometry and windowState, so these two are the answer to my question.

@mrjj
Thanks for the reply!
I followed your advice and tried setting the panelWindow as the parent...
No change..

Any other ideas?
I followed this link,
http://doc.qt.io/qt-5/qmacnativewidget.html#details

@mrjj yeah!! its working bro if i remove label.. Thank you all for your suggestions

@pmendl
No problem. Do bear in mind that if you decide to send the event with QApplication::sendEvent, you are responsible for the event object's deletion, so it's a good idea to create it on the stack in that case. Good luck!

Kind regards.

It's not very well exposed, but this is actually documented in QPainter::begin():

Warning: A paint device can only be painted by one painter at a time.

@Wieland Thanks for the help and the link.

Do you know any desktop environment where showMaximized doesn't work?

No I do not. I'm contributing to an open source project so I want to be sure.

@SGaist
Ok I guess i'll open a different question for this issue, thanks anyway for your help

@p3c0

Hey thanks! Works as expected.
Another baby step on the road to writing more interesting bugs. . . ;-)

Hi,

You could try with an eventFilter and handle QEvent::InputMethod in there

Hope it helps

Can you try to first go full screen and only then create the embedded QWindow ?

I found out the solution using native Windows Gestures WM_Gesture.
By default QT registers QMainWindow-Window as a Touch Window, so the QMainWindow-App only get WM_Touch events.
As said above one can only get either WM_Touch event or WM_Gesture event. So you have to unregister the window from getting Touch event. I do that in the constructor like this:

HWND myHwnd = reinterpret_cast<HWND>(this->winId()); PULONG flag = 0; bool istouch = IsTouchWindow(myHwnd,flag); if(istouch) UnregisterTouchWindow(myHwnd);

now i get WM_Gesture events in nativeEvent:

bool OpenGLWindow::nativeEvent(const QByteArray & eventType, void* message, long* result) { MSG* msg = reinterpret_cast<MSG*>(message); switch(msg->message){ case WM_GESTURE: case WM_GESTURENOTIFY: emit sendNativeEvent(eventType, message, result); break; } return false; }

Thanks for your help.

Hi,

Sounds like you may have found a regression. You should take a look at the bug report system to see if it's something known. If not please consider opening a new report providing a minimal compilable example showing the behavior

There is a static function of QWidget that will create a container widget with a QWindow as a parent.
QWidget* QWidget::createWindowContainer(QWindow *,...)

Once you have the widget container this can be the parent of any other dialogs or widgets you need to add.