Qt Window Size

[Jamiil]

Using a Qt widget base application in Qt5.2.1 I would like to display the main window dynamically occupying the whole screen, how can I do that?
One observation: Not all monitors have the same size, mine is very small compared to the ones at work.
Thanks in advance

[nicky j]

This works for a QMainWindow
@this->setWindowState(Qt::WindowFullScreen);@
I'm not sure if it will work for a QWidget, but you can try it out

[ankursaxena]

May it looks some bad. but In qt 4 main window can occupy whole screen.

QDesktopWidget desktop;

int vnWidth=desktop.geometry().width();
int vnHeight=desktop.geometry().height();

this->setFixedSize(vnWidth,vnHeight);

[marstay]

If you want a full screen widget you had to do

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

and after that call @widget->showFullScreen();@

Also you can try the @this->setCentralWidget(widget);@ for the main window.