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

  • 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 ?

  • 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

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