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diff --git a/libLumina/LuminaSingleApplication.h b/libLumina/LuminaSingleApplication.h
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+//===========================================
+//  Lumina-DE source code
+//  Copyright (c) 2014, Ken Moore
+//  Available under the 3-clause BSD license
+//  See the LICENSE file for full details
+//===========================================
+// This is the general class for a single-instance application
+//===========================================
+//EXAMPLE USAGE in main.cpp:
+//
+// LSingleApplication app(argc, argv);
+// if( !app.isPrimaryProcess() ){
+//    return 0;
+//  }
+//  QMainWindow w; //or whatever the main window class is
+//  connect(app, SIGNAL(InputsAvailable(QStringList)), w, SLOT(<some slot>)); //for interactive apps - optional
+//  app.exec();
+//===========================================
+#ifndef _LUMINA_LIBRARY_SINGLE_APPLICATION_H
+#define _LUMINA_LIBRARY_SINGLE_APPLICATION_H
+
+#include <QApplication>
+#include <QString>
+#include <QStringList>
+#include <QLocalServer>
+#include <QLockFile>
+
+
+class LSingleApplication : public QApplication{
+  Q_OBJECT
+public:
+	LSingleApplication(int &argc, char **argv);
+	~LSingleApplication();
+
+	bool isPrimaryProcess();
+
+private:
+	bool isActive;
+	QLockFile *lockfile;
+	QLocalServer *lserver;
+	QString cfile;
+	QStringList inputlist;
+
+	void PerformLockChecks();
+
+private slots:
+	void newInputsAvailable(); //internally used to detect a message from an alternate instance
+
+signals:
+	void InputsAvailable(QStringList);
+
+};
+
+#endif