Central Widget and full screen

PavelM

It is possile show central widget of QMainWindow at fullscreen? (only central widget)

This code create an exception

 setCentralWidget(ui->widget);

  ui->widget->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint );
  ui->widget->showFullScreen();

Pavel

SGaist

Hi and welcome to devnet,

You should then remove the child widget from MainWindow's central widget and then make it full screen. When done put it back as central widget.

Ni.Sumi

Hi @PavelM ,

Here is the code sample that it can do, what Mr. @SGaist told. It has to be removed/ make it floated and then Fullscreen yb double click and the next double click on it brigns back to normal from Fullscreen.

https://forum.qt.io/topic/23308/how-to-fullscreen-the-child-widget/8