diff --git a/API_UiUnits.cpp b/API_UiUnits.cpp
new file mode 100644
index 0000000..770adcb
--- /dev/null
+++ b/API_UiUnits.cpp
@@ -0,0 +1,45 @@
+//----------------------------------------------------------------------------
+//  EgalTech 2015-2015
+//----------------------------------------------------------------------------
+// File : API_UiUnits.cpp       Data : 21.07.15        Versione : 1.6g6
+// Contenuto : Funzioni per gestione unità di misura per interfaccia utente.
+//
+//
+//
+// Modifiche : 21.07.15 DS Creazione modulo.
+//
+//
+//----------------------------------------------------------------------------
+
+//--------------------------- Include ----------------------------------------
+#include "stdafx.h"
+#include "/EgtDev/Include/EInAPI.h"
+#include "/EgtDev/Include/EXeExecutor.h"
+
+//-----------------------------------------------------------------------------
+BOOL
+__stdcall EgtSetUiUnits( BOOL bMM)
+{
+   return ( ExeSetUiUnits( bMM != FALSE) ? TRUE : FALSE) ;
+}
+
+//-----------------------------------------------------------------------------
+BOOL
+__stdcall EgtUiUnitsAreMM( void)
+{
+   return ( ExeUiUnitsAreMM() ? TRUE : FALSE) ;
+}
+
+//-----------------------------------------------------------------------------
+double
+__stdcall EgtFromUiUnits( double dVal)
+{
+   return ExeFromUiUnits( dVal) ;
+}
+
+//-----------------------------------------------------------------------------
+double
+__stdcall EgtToUiUnits( double dVal)
+{
+   return ExeToUiUnits( dVal) ;
+}
diff --git a/EgtInterface.rc b/EgtInterface.rc
index dd91c67..d0e9d6f 100644
Binary files a/EgtInterface.rc and b/EgtInterface.rc differ
diff --git a/EgtInterface.vcxproj b/EgtInterface.vcxproj
index 90332a5..da2381d 100644
--- a/EgtInterface.vcxproj
+++ b/EgtInterface.vcxproj
@@ -231,6 +231,7 @@ copy $(TargetPath) \EgtProg\Dll64</Command>
     <ClCompile Include="API_Messages.cpp" />
     <ClCompile Include="API_Scene.cpp" />
     <ClCompile Include="API_TscExec.cpp" />
+    <ClCompile Include="API_UiUnits.cpp" />
     <ClCompile Include="EInDllMain.cpp" />
     <ClCompile Include="stdafx.cpp">
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Create</PrecompiledHeader>
diff --git a/EgtInterface.vcxproj.filters b/EgtInterface.vcxproj.filters
index cbfa9b6..ece4db2 100644
--- a/EgtInterface.vcxproj.filters
+++ b/EgtInterface.vcxproj.filters
@@ -110,6 +110,9 @@
     <ClCompile Include="API_MachMgr.cpp">
       <Filter>File di origine\API</Filter>
     </ClCompile>
+    <ClCompile Include="API_UiUnits.cpp">
+      <Filter>File di origine\API</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="EgtInterface.rc">