code: func (v *Widget) AddAccelerator(signal string, group *AccelGroup, key uint, mods gdk.ModifierType, flags AccelFlags) {
  	csignal := (*C.gchar)(C.CString(signal))
  	defer C.free(unsafe.Pointer(csignal))
  
  	C.gtk_widget_add_accelerator(v.native(),
  		csignal,
  		group.native(),
  		C.guint(key),
  		C.GdkModifierType(mods),
  		C.GtkAccelFlags(flags))
  }
docs: // AddAccelerator is a wrapper around gtk_widget_add_accelerator().