diff --git a/src/widgets/vehicle_widget.h b/src/widgets/vehicle_widget.h
new file mode 100644
--- /dev/null
+++ b/src/widgets/vehicle_widget.h
@@ -0,0 +1,77 @@
+/* $Id$ */
+
+/*
+ * 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 vehicle_widget.h Types related to the vehicle widgets. */
+
+#ifndef WIDGETS_VEHICLE_WIDGET_H
+#define WIDGETS_VEHICLE_WIDGET_H
+
+/** Widgets of the WC_VEHICLE_VIEW. */
+enum VehicleViewWindowWidgets {
+	VVW_WIDGET_CAPTION,
+	VVW_WIDGET_VIEWPORT,           ///< Viewport widget.
+	VVW_WIDGET_START_STOP_VEH,
+	VVW_WIDGET_CENTER_MAIN_VIEH,
+	VVW_WIDGET_GOTO_DEPOT,
+	VVW_WIDGET_REFIT_VEH,
+	VVW_WIDGET_SHOW_ORDERS,
+	VVW_WIDGET_SHOW_DETAILS,
+	VVW_WIDGET_CLONE_VEH,
+	VVW_WIDGET_SELECT_DEPOT_CLONE, ///< Selection widget between 'goto depot', and 'clone vehicle' buttons.
+	VVW_WIDGET_SELECT_REFIT_TURN,  ///< Selection widget between 'refit' and 'turn around' buttons.
+	VVW_WIDGET_TURN_AROUND,
+	VVW_WIDGET_FORCE_PROCEED,
+};
+
+/** Widgets of the WC_VEHICLE_REFIT. */
+enum VehicleRefitWidgets {
+	VRW_CAPTION,
+	VRW_VEHICLE_PANEL_DISPLAY,
+	VRW_SHOW_HSCROLLBAR,
+	VRW_HSCROLLBAR,
+	VRW_SELECTHEADER,
+	VRW_MATRIX,
+	VRW_SCROLLBAR,
+	VRW_INFOPANEL,
+	VRW_REFITBUTTON,
+};
+
+/** Widgets of the WC_VEHICLE_DETAILS. */
+enum VehicleDetailsWindowWidgets {
+	VLD_WIDGET_CAPTION,
+	VLD_WIDGET_RENAME_VEHICLE,
+	VLD_WIDGET_TOP_DETAILS,
+	VLD_WIDGET_INCREASE_SERVICING_INTERVAL,
+	VLD_WIDGET_DECREASE_SERVICING_INTERVAL,
+	VLD_WIDGET_SERVICING_INTERVAL,
+	VLD_WIDGET_MIDDLE_DETAILS,
+	VLD_WIDGET_MATRIX,
+	VLD_WIDGET_SCROLLBAR,
+	VLD_WIDGET_DETAILS_CARGO_CARRIED,
+	VLD_WIDGET_DETAILS_TRAIN_VEHICLES,
+	VLD_WIDGET_DETAILS_CAPACITY_OF_EACH,
+	VLD_WIDGET_DETAILS_TOTAL_CARGO,
+};
+
+/** Widgets of the vehicle lists (WC_INVALID). */
+enum VehicleListWindowWidgets {
+	VLW_WIDGET_CAPTION,
+	VLW_WIDGET_SORT_ORDER,
+	VLW_WIDGET_SORT_BY_PULLDOWN,
+	VLW_WIDGET_LIST,
+	VLW_WIDGET_SCROLLBAR,
+	VLW_WIDGET_HIDE_BUTTONS,
+	VLW_WIDGET_AVAILABLE_VEHICLES,
+	VLW_WIDGET_MANAGE_VEHICLES_DROPDOWN,
+	VLW_WIDGET_STOP_ALL,
+	VLW_WIDGET_START_ALL,
+};
+
+
+#endif /* WIDGETS_VEHICLE_WIDGET_H */