Build confirmation window, for each build action on the map

src/build_confirmation_func.h

@@ -0,0 +1,25 @@
+/* $Id$ */
+
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
+ * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file build_confirmation_func.h Transparent confirmation dialog for building anything on the map. */
+
+#ifndef BUILD_CONFIRMATION_FUNC_H
+#define BUILD_CONFIRMATION_FUNC_H
+
+#include "stdafx.h"
+#include "window_func.h"
+#include "widget_type.h"
+
+
+void ShowBuildConfirmationWindow();
+void HideBuildConfirmationWindow();
+bool ConfirmationWindowShown();
+
+
+#endif /* BUILD_CONFIRMATION_FUNC_H */