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// $Id: ExN03PrimaryGeneratorAction.hh,v 1.1 2007/05/26 00:18:27 tkoi Exp $
// GEANT4 tag $Name: geant4-09-04-beta-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  class
    ExN03DetectorConstruction*    ExN03Detector;  //pointer to the geometry
    
    ExN03PrimaryGeneratorMessenger* gunMessenger; //messenger of this class
    G4String                      rndmFlag;	  //flag for a rndm impact point
};

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#endif