// This code implementation is the intellectual property of
// the GEANT4 collaboration.
//
// By copying, distributing or modifying the Program (or any work
// based on the Program) you indicate your acceptance of this statement,
// and all its terms.
//
// $Id: ExN03PrimaryGeneratorAction.hh,v 1.2 1999/12/15 14:49:24 gunter Exp $
// GEANT4 tag $Name: geant4-01-01 $
//
// 

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#ifndef ExN03PrimaryGeneratorAction_h
#define ExN03PrimaryGeneratorAction_h 1

#include "G4VUserPrimaryGeneratorAction.hh"
#include "globals.hh"

class G4ParticleGun;
class G4Event;
class ExN03DetectorConstruction;
class ExN03PrimaryGeneratorMessenger;

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class ExN03PrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction
{
  public:
    ExN03PrimaryGeneratorAction(ExN03DetectorConstruction*);    
   ~ExN03PrimaryGeneratorAction();

  public:
    void GeneratePrimaries(G4Event*);
    void SetRndmFlag(G4String val) { rndmFlag = val;}

  private:
    G4ParticleGun*                particleGun;	  //pointer a to G4 service class
    ExN03DetectorConstruction*    ExN03Detector;  //pointer to the geometry
    
    ExN03PrimaryGeneratorMessenger* gunMessenger; //messenger of this class
    G4String                      rndmFlag;	  //flag for a random impact point       
};

#endif