QFileDialog and restriction use

[jerome_isAviable]

is it possible to do something for forbid to see outside of defined directory ?
or...
better, for do the obligation of stay inside a define directory and his sub-directories ?

my idea is, for the user, to a general general directory of the application (in the configuration wondow) and then, each time the user create a project in the application, he has to choose or create by the QFileDialogBox a directory inside this one for the new project (or for some other new creations).

[andre]

When using the Qt-based variant (which IMHO looks horrible and outdated), I think this could be achieved. With the native dialogs: I don't think so.

[jerome_isAviable]

ok so... i need to construct my own QFileDialog browser...
maybe this could be alos an occasion to constrcut a visual graphic view of the content sized...
ok thanks.