//
// ********************************************************************
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//
//
// $Id: G4UIsession.hh,v 1.5 2006/06/29 19:08:23 gunter Exp $
// GEANT4 tag $Name: geant4-09-03 $
//
// $id$

#ifndef G4UIsession_h
#define G4UIsession_h 1

#include "G4coutDestination.hh"
#include "globals.hh"

// class description:
//
//  This is a base class of all (G)UI session.
//  SessionStart() method should be called to start the session.
//

class G4UIsession : public G4coutDestination
{
  // Base class of UI/GUI session
  
  public:
      G4UIsession();
      virtual ~G4UIsession();

      virtual G4UIsession * SessionStart();
      // This method will be invoked by main().
      // Optionally, it can be invoked by another session.
      
      virtual void PauseSessionStart(G4String Prompt);
      // This method will be invoked by G4UImanager
      // when G4kernel becomes to Pause state.
      
      virtual G4int ReceiveG4cout(G4String coutString);
      virtual G4int ReceiveG4cerr(G4String cerrString);
      // These two methods will be invoked by G4strstreambuf.

};



#endif

