BEGIN_EVENT_TABLE(wxWindowOS2, wxWindowBase)
     EVT_ERASE_BACKGROUND(wxWindowOS2::OnEraseBackground)
     EVT_SYS_COLOUR_CHANGED(wxWindowOS2::OnSysColourChanged)
-    EVT_INIT_DIALOG(wxWindowOS2::OnInitDialog)
     EVT_IDLE(wxWindowOS2::OnIdle)
     EVT_SET_FOCUS(wxWindowOS2::OnSetFocus)
 END_EVENT_TABLE()
 
     pMenu->SetInvokingWindow(this);
     pMenu->UpdateUI();
-
-    DoClientToScreen( &nX
-                     ,&nY
-                    );
+    
+    if ( x == -1 && y == -1 )
+    {
+        wxPoint mouse = wxGetMousePosition();
+        nX = mouse.x; nY = mouse.y;
+    }
+    else
+    {
+        DoClientToScreen( &nX
+                         ,&nY
+                        );
+    }
     wxCurrentPopupMenu = pMenu;
 
     ::WinPopupMenu( hWndParent