How to suggest path based on user input

I am creating a GUI using “Gtk” and in this GUI there is a field where user inputs path, I want to suggest path based on user input. But i am unable to do so, Any idea how i can suggest path to user based on the input s/he provides.

Thank you.

I’m not sure if it works with Gtk, but I always use NativeFileDialog.jl for this purpose. It brings up the native OS GUI for file/folder selection.

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