QWinWidget display to display Qt widget on MFC window

[EmmanuelC]

Hello,
I'm trying to display a Qt widget (a QLineEdit to be precise) in a MFC window. To do so, I'm using QWinWidget.

It displays well the QLineEdit, but the problem I have is that when I want to update the field and click on it, it's disappearing...
Then when I click on another window in my application, it's reapprearing, and is well updated if I changed the text inside of it (even if it had disappeared)
Anyone has an idea on what's going wrong here?

Here is my code :

		CRect ControlArea2;
		m_Control3.GetClientRect(ControlArea2);
		HWND hWnd_TransfFunction = m_Control3.GetSafeHwnd();
		QWinWidget w(hWnd_TransfFunction, 0, 0);
		QWidget *widget = new QWidget(&w);
		QHBoxLayout *hbox = new QHBoxLayout(widget);
		QLabel *label = new QLabel("Enter text:", widget);
		QLineEdit *edit = new QLineEdit(widget);
		hbox->addWidget(label);
		hbox->addWidget(edit);
		widget->move(0, 0);
		widget->setBackgroundRole(QPalette::Base);
		w.setGeometry(ControlArea2.left, ControlArea2.top, ControlArea2.Width(), ControlArea2.Height());
		w.setFixedSize(ControlArea2.Width(), ControlArea2.Height());
		w.show();

[mrjj]

Hi
What Qt version are you using?
QtWinMigrate might have issue in Qt5+

[EmmanuelC]

@mrjj I am using Qt 5.12.3. So it might be the problem?
Do you think I should try an older version like Qt 5.8?