QT Installer framework custom script

  • Hello,
    I'm new to the world of QT and javascript, I've discovered QT Installer Framework recently and I can already do amazing things with it. However I have some issues to accomplish the following:

    I'm creating an installer with several components in it (com.1 ; com.2 ; com.3). For a particular component (com.1), I would like to check if a folder exists or not, before starting installation process for this component. If the folder exists, prompt the user with a message and give him the choice to Retry or Cancel the installation.

    Someone can help me to start with this?
    Thank you very much in advance.


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