signal callback delegate or function to connect
void callback(gtk.file_chooser_button.FileChooserButton fileChooserButton)
fileChooserButton the instance the signal is connected to (optional)
Yes.After to execute callback after default handler, No.After to execute before (default)
Signal ID
Connect to FileSet signal.
The ::file-set signal is emitted when the user selects a file.
Note that this signal is only emitted when the user changes the file.