PrimaryGeneratorAction.hh

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#ifndef PrimaryGeneratorAction_h
#define PrimaryGeneratorAction_h 1

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

class G4ParticleGun;
class G4Event;
class DetectorConstruction;
class PrimaryGeneratorMessenger;

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class PrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction
{
public:
  PrimaryGeneratorAction(DetectorConstruction*);    
  virtual ~PrimaryGeneratorAction();

  void GeneratePrimaries(G4Event*);
  void SetRndmFlag(G4String val) { fRndmFlag = val;}

private:
  G4ParticleGun*           fParticleGun;  //pointer a to G4  class
  DetectorConstruction*    fDetector;     //pointer to the geometry
    
  PrimaryGeneratorMessenger* fGunMessenger; //messenger of this class
  G4String                   fRndmFlag;     //flag for a rndm impact point
};

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#endif