31 #ifndef G4VRTScanner_H 
   32 #define G4VRTScanner_H 1 
   65   (
unsigned char red, 
unsigned char green, 
unsigned char blue);
 
virtual G4bool Coords(G4int &iRow, G4int &iColumn)=0
 
virtual const G4String & GetGSName() const =0
 
virtual void Draw(unsigned char red, unsigned char green, unsigned char blue)
 
virtual void Initialize(G4int nRow, G4int nColumn)=0
 
virtual const G4String & GetGSNickname() const =0