Make sure we can build on Windows.

src/plugins/simulation/PendulumWindow/src/pendulumwindowglobal.h

@@ -0,0 +1,40 @@
+/*******************************************************************************
+
+Copyright (C) The University of Auckland
+
+OpenCOR 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, either version 3 of the License, or
+(at your option) any later version.
+
+OpenCOR 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+*******************************************************************************/
+
+//==============================================================================
+// Pendulum window global
+//==============================================================================
+
+#pragma once
+
+//==============================================================================
+
+#ifdef _WIN32
+    #ifdef PendulumWindow_PLUGIN
+        #define PENDULUMWINDOW_EXPORT __declspec(dllexport)
+    #else
+        #define PENDULUMWINDOW_EXPORT __declspec(dllimport)
+    #endif
+#else
+    #define PENDULUMWINDOW_EXPORT
+#endif
+
+//==============================================================================
+// End of file
+//==============================================================================

src/plugins/simulation/PendulumWindow/src/pendulumwindowwindow.h

@@ -25,6 +25,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 //==============================================================================
 
+#include "pendulumwindowglobal.h"
 #include "windowwidget.h"
 
 //==============================================================================
@@ -72,7 +73,7 @@ namespace PendulumWindow {
 
 //==============================================================================
 
-class PendulumWindowWindow : public Core::WindowWidget
+class PENDULUMWINDOW_EXPORT PendulumWindowWindow : public Core::WindowWidget
 {
     Q_OBJECT