code: func (v *Window) ActivateMnemonic(keyval uint, mods gdk.ModifierType) bool {
  	c := C.gtk_window_mnemonic_activate(v.native(), C.guint(keyval), C.GdkModifierType(mods))
  	return gobool(c)
  }
docs: // ActivateMnemonic is a wrapper around gtk_window_mnemonic_activate().