QT getting the screen resolution without the extended monitor

Question

QDesktopWidget desktop;

int desktopHeight=desktop.geometry().height();
int desktopWidth=desktop.geometry().width();
this->resize(desktopWidth,desktopHeight);


        

Answer 1

You pretty much had it, just give the screen ID of your main monitor to the geometry() call.

QDesktopWidget widget;
QRect mainScreenSize = widget.availableGeometry(widget.primaryScreen()); // or screenGeometry(), depending on your needs