singleapplication.h

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#ifndef SINGLEAPPLICATION_H_
#define SINGLEAPPLICATION_H_
 
#include <QApplication>
#include <QLocalServer>
#include <QSharedMemory>
 
class SingleApplication : public QApplication {
  Q_OBJECT
public:
  SingleApplication(int &argc, char *argv[], QString uniqueKey);
  bool isRunning();
  bool sendMessage(const QString &message);
 
public slots:
  void receiveMessage();
 
signals:
  void messageAvailable(QString message);
 
private:
  bool _isRunning;
  QString _uniqueKey;
  QSharedMemory sharedMemory;
  QScopedPointer<QLocalServer> localServer;
 
  static const int timeout = 1000;
};
 
#endif // SINGLEAPPLICATION_H_