Returned if an action widget has no response id, or if the dialog gets programmatically hidden or destroyed.

Property definitions

gtk $ GtkResponseType :: none
	# Returned if an action widget has no response id, or if the dialog gets programmatically hidden or destroyed.
	new none `{ return GTK_RESPONSE_NONE; `}
lib/gtk/v3_4/gtk_dialogs.nit:306,2--307,41