select_folder
Description:
This function initiates a directory selection operation by presenting a file chooser dialog to the user.
If you pass initial_folder, the file chooser will initially be opened in the parent directory of that folder, otherwise, it will
be in the directory [property@Gtk.FileDialog:initial-folder].
The callback will be called when the dialog is dismissed. It should call [method@Gtk.FileDialog.select_folder_finish] to obtain
the result.
Parameters:
| this |
a `GtkFileDialog` |
| parent |
the parent `GtkWindow` |
| cancellable |
a `GCancellable` to cancel the operation |
| callback |
a callback to call when the operation is complete |
| user_data |
data to pass to |