m_nNumItems = 0;
 } // end of wxListBox::Clear
 
-void wxListBox::SetSelection(
+void wxListBox::DoSetSelection(
   int                               N
 , bool                              bSelect
 )
     int                             nListbox = 0;
     int                             nCx;
     int                             nCy;
+    wxFont                          vFont = (wxFont)GetFont();
 
     for (int i = 0; i < m_nNumItems; i++)
     {
     wxGetCharSize( GetHWND()
                   ,&nCx
                   ,&nCy
-                  ,(wxFont*)&GetFont()
+                  ,&vFont
                  );
     nListbox += 3 * nCx;
 
     {
         n = -1;
     }
-    vEvent.m_commandInt = n;
+    vEvent.SetInt(n);
     return GetEventHandler()->ProcessEvent(vEvent);
 } // end of wxListBox::OS2Command