With Qt installer framework, we're allowed to customize UI elements of steps but it seems that when it comes to message boxes, which are not really UI elements, the only thing we can do is automatically answer or simply dismiss all of them given to this page.
In my configuration, I'd like to display a custom QMessageBox when the chosen directory triggers the TargetDirectoryInUse error, or at least replace the message displayed in it. I don't need it to act differently, I still need the installer not to allow installation when clicking OK but I don't like the text in it.
The Target Directory Page reveals no information about any signal or callback they would've made accessible either.
Any hint would be appreciated !
