diff --git a/EGkGdbIterator.h b/EGkGdbIterator.h
index 7c20cef..d07163b 100644
--- a/EGkGdbIterator.h
+++ b/EGkGdbIterator.h
@@ -1,13 +1,14 @@
 //----------------------------------------------------------------------------
 //  EgalTech 2013-2023
 //----------------------------------------------------------------------------
-// File : EGkGdbIterator.h        Data : 29.01.23          Versione : 2.5a2
+// File : EGkGdbIterator.h        Data : 09.07.23          Versione : 2.5g1
 // Contenuto : Dichiarazione della interfaccia IGdbIterator.
 //
 //
 //
 // Modifiche : 04.12.13 DS Creazione modulo.
 //             29.01.23 DS Aggiunte GetAllInfo e CopyAllInfoFrom.
+//             09.07.23 DS Aggiunte SetStipple e GetStipple.
 //
 //----------------------------------------------------------------------------
 
@@ -144,6 +145,9 @@ class __declspec( novtable) IGdbIterator
       virtual bool RemoveInfo( const std::string& sKey) = 0 ;
       virtual bool GetAllInfo( STRVECTOR& vsInfo) const = 0 ;
       virtual bool CopyAllInfoFrom( const IGdbIterator& iIter) = 0 ;
+     // Stipple
+      virtual bool SetStipple( int nFactor, int nPattern) = 0 ;
+      virtual bool GetStipple( int& nFactor, int& nPattern) const = 0 ;
      // TextureData
       virtual bool SetTextureName( const std::string& sTxrName) = 0 ;
       virtual bool SetTextureFrame( const Frame3d& frTxrRef) = 0 ;
diff --git a/EGkGeomDB.h b/EGkGeomDB.h
index c76fc8d..e8b59a5 100644
--- a/EGkGeomDB.h
+++ b/EGkGeomDB.h
@@ -1,7 +1,7 @@
 //----------------------------------------------------------------------------
 //  EgalTech 2013-2023
 //----------------------------------------------------------------------------
-// File : EGkGeomDB.h           Data : 29.01.23          Versione : 2.5a
+// File : EGkGeomDB.h           Data : 09.07.23          Versione : 2.5g1
 // Contenuto : Dichiarazione della interfaccia IGeomDB.
 //
 //
@@ -12,6 +12,7 @@
 //             30.05.14 DS Agg. metodi di Shear.
 //             03.12.14 DS Aggiunta gestione riferimento di griglia.
 //             29.01.23 DS Aggiunta GetAllInfo.
+//             09.07.23 DS Aggiunte DumpStipple, SetStipple e GetStipple.
 //
 //----------------------------------------------------------------------------
 
@@ -179,6 +180,10 @@ class __declspec( novtable) IGeomDB
       virtual bool RemoveInfo( int nId, const std::string& sKey) = 0 ;
       virtual bool GetAllInfo( int nId, STRVECTOR& vsInfo) const = 0 ;
       virtual bool CopyAllInfoFrom( int nId, int nSouId) = 0 ;
+     // Stipple (significativo solo per curve)
+      virtual bool DumpStipple( int nId, std::string& sOut, bool bMM = true, const char* szNewLine = "\n") const = 0 ;
+      virtual bool SetStipple( int nId, int nFactor, int nPattern) = 0 ;
+      virtual bool GetStipple( int nId, int& nFactor, int& nPattern) const = 0 ;
      // TextureData
       virtual bool DumpTextureData( int nId, std::string& sOut, bool bMM = true, const char* szNewLine = "\n") const = 0 ;
       virtual bool SetTextureName( int nId, const std::string& sTxrName) = 0 ;
diff --git a/EGnStringUtils.h b/EGnStringUtils.h
index b728333..8e51f5b 100644
--- a/EGnStringUtils.h
+++ b/EGnStringUtils.h
@@ -196,11 +196,11 @@ EGN_EXPORT bool FromString( const std::string& sVal, STRVECTOR& vsVal) ;
 
 //----------------------------------------------------------------------------
 inline const std::string
-ToString( int nVal, int nPrec = 1)
+ToString( int nVal, int nPrec = 1, int nRadix = 10)
       {
         // eseguo conversione
          char szBuff[24] ;
-         int nErr = _itoa_s( nVal, szBuff, 10) ;
+         int nErr = _itoa_s( nVal, szBuff, nRadix) ;
         // se errore, ritorno stringa opportuna
          if ( nErr != 0) {
             _ASSERT( 0) ;
@@ -216,11 +216,11 @@ ToString( int nVal, int nPrec = 1)
          return sBuff ;
       }
 inline const std::string
-ToString( unsigned int nVal, int nPrec = 1)
+ToString( unsigned int nVal, int nPrec = 1, int nRadix = 10)
       {
         // eseguo conversione
          char szBuff[24] ;
-         int nErr = _ui64toa_s( nVal, szBuff, 24, 10) ;
+         int nErr = _ultoa_s( nVal, szBuff, nRadix) ;
         // se errore, ritorno stringa opportuna
          if ( nErr != 0) {
             _ASSERT( 0) ;