diff --git a/API_GdbModifyCurve.cpp b/API_GdbModifyCurve.cpp
index 984b5f6..33a9cc0 100644
--- a/API_GdbModifyCurve.cpp
+++ b/API_GdbModifyCurve.cpp
@@ -181,6 +181,13 @@ __stdcall EgtModifyCircleCP( int nId, const double ptOn[3], int nRefType)
    return ( ExeModifyCircleCP( nId, ptOn, nRefType) ? TRUE : FALSE) ;
 }
 
+//-------------------------------------------------------------------------------
+BOOL
+__stdcall EgtModifyCircle3P( int nId, const double ptP1[3], const double ptP2[3], const double ptP3[3], int nRefType)
+{
+   return ( ExeModifyCircle3P( nId, ptP1, ptP2, ptP3, nRefType) ? TRUE : FALSE) ;
+}
+
 //-------------------------------------------------------------------------------
 BOOL
 __stdcall EgtModifyArcRadius( int nId, double dRad)
diff --git a/EgtInterface.rc b/EgtInterface.rc
index c18c568..fab1ab1 100644
Binary files a/EgtInterface.rc and b/EgtInterface.rc differ