Detect multiple monitors

[ArchGabe]

Hi guys,

I need to detect multiple monitors on my applictation. My code is already done so I need to do minimal changes on it in order to open the application on a second screen, if it is present.
I already know about QWdiget and QDesktopWidget, but I need some exemples of how to insert those functions in my code or an alternative to them.

Thank you in advance,

[mcosta]

Hi,

what means "I need to detect multiple monitors"?

With QDesktopWidget::screenCount() returns the number of screens available on the system

@
QDesktopWidget dw;
if (dw.screenCount() > 1) {
// Multiple screen
}
else {
// Single screen
}
@

However multiple monitors detecting depends on Window Manager settings (Virtual Desktop, Multiple Desktop, ...)

[Edward Heretsch]

For readers who are finding their way to this topic, QDesktopWidget is depracated. Instead QGuiApplication should be used.