Adds capabilities to build as shared library on Windows.

AdvancedDockingSystem/include/ads/API.h

@@ -7,6 +7,15 @@
 #include <QSharedPointer>
 class QSplitter;
 
+// DLL Export API
+#ifdef _WIN32
+	#ifdef ADS_EXPORT
+		#define ADS_EXPORT_API __declspec(dllexport)
+	#else
+		#define ADS_EXPORT_API
+	#endif
+#endif
+
 // Use namespace
 // Disabled with Qt4!
 #ifdef ADS_NAMESPACE_ENABLED