// method
 #ifdef __WXUNIVERSAL__
     IMPLEMENT_ABSTRACT_CLASS(wxWindowOS2, wxWindowBase)
-#else // __WXPM__
-    IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
-#endif // __WXUNIVERSAL__/__WXPM__
+#endif // __WXUNIVERSAL__
 
 BEGIN_EVENT_TABLE(wxWindowOS2, wxWindowBase)
     EVT_ERASE_BACKGROUND(wxWindowOS2::OnEraseBackground)
         return false;
     }
 
-    if ( m_cursor.Ok() ) {
+    if ( m_cursor.IsOk() ) {
         HWND                            hWnd = GetHwnd();
         POINTL                          vPoint;
         RECTL                           vRect;
             (void)HandleWindowEvent(rEvent);
         }
     }
-    if (wxUpdateUIEvent::CanUpdate(this))
-        UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
 } // end of wxWindowOS2::OnIdle
 
 //
     // use WinQueryWindowPos.  This call, unlike the WIN32 call, however,
     // returns a position relative to it's parent, so no parent adujstments
     // are needed under OS/2.  Also, windows should be created using
-    // wxWindow coordinates, i.e 0,0 is the TOP left.
+    // wxWindow coordinates, i.e. 0,0 is the TOP left.
     //
     if (IsKindOf(CLASSINFO(wxFrame)))
     {
     bool bIsWaiting = true;
     int nHeight;
 
-    pMenu->SetInvokingWindow(this);
     pMenu->UpdateUI();
 
     if ( nX == -1 && nY == -1 )
         ::WinDispatchMsg(vHabmain, (PQMSG)&vMsg);
     }
 
-    pMenu->SetInvokingWindow(NULL);
     return true;
 } // end of wxWindowOS2::DoPopupMenu
 #endif // wxUSE_MENUS_NATIVE
     // Delete our drop target if we've got one
     //
 #if wxUSE_DRAG_AND_DROP
-    if (m_dropTarget != NULL)
-    {
-        delete m_dropTarget;
-        m_dropTarget = NULL;
-    }
+    wxDELETE(m_dropTarget);
 #endif // wxUSE_DRAG_AND_DROP
 
     //
                                           ,pMeasureStruct->rclItem.yTop - pMeasureStruct->rclItem.yBottom
                                          );
 
-       wxPMDCImpl *impl = (wxPMDCImpl*) vDc.GetImpl();
+        wxPMDCImpl *impl = (wxPMDCImpl*) vDc.GetImpl();
         impl->SetHDC( hDC, false );
         impl->SetHPS( pMeasureStruct->hps );
         //