diff --git a/CAvToolSurfTm.cpp b/CAvToolSurfTm.cpp
index 7cc0869..d8eff2c 100644
--- a/CAvToolSurfTm.cpp
+++ b/CAvToolSurfTm.cpp
@@ -175,7 +175,7 @@ CAvToolSurfTm::TestPath( PNTULIST& lPntM, const Vector3d& vtDir, const Vector3d&
          if ( m_nCurrPnt > nNextPE) {
             int nRes = ProcessEvents( int( m_nCurrPnt * 100. / m_nTotPnt), 10) ;
             nNextPE += STEP_PE ;
-            if ( nRes == 0)
+            if ( nRes == 1)
                m_bBreak = true ;
          }
       }
@@ -223,7 +223,7 @@ CAvToolSurfTm::TestSubPath( int nId, PNTULIST& lPntM, const Vector3d& vtDir, dou
         // gestione eventi (ogni STEP_PE punti)
          if (( m_nCurrPnt % STEP_PE) == 0) {
             int nRes = ProcessEvents( int( m_nCurrPnt * 100. / m_nTotPnt), 0) ;
-            if ( nRes == 0)
+            if ( nRes == 1)
                return false ;
          }
       }
diff --git a/EgtGeomKernel.rc b/EgtGeomKernel.rc
index 55d71ab..660af81 100644
Binary files a/EgtGeomKernel.rc and b/EgtGeomKernel.rc differ