definition module Gtk.Signal from Gtk.State import :: State, :: StateT, :: Identity, :: GtkState from Gtk.Widgets import class gtkWidget :: GSignalHandlerFunction :== State GtkState () :: GSignalHandler = DestroyHandler !GSignalHandlerFunction :: GSignalHandlerInternal = GSHI_Void !GSignalHandlerFunction installSignalHandler :: !w !GSignalHandler -> State GtkState () | gtkWidget w