How to detect whether there is mouse input or touch input...

[kaziwaseef]

My app will work on the desktop, tablet and phone. The UI will be selected accordingly. To differentiate between PC and touch device, I need to know whether a mouse is connected to the system or not. How do I do this in Qt 5 ?

[mcosta]

I think you can't know this using pure Qt code; you should try one of theese techniques

Use the Q_OS_* defines to check the platform of compilation

Use custom preprocessor defines