+ wxSize sz = m_targetWindow->GetClientSize();
+#if 1
+ int x = wxMax(noUnitsX * pixelsPerUnitX, sz.x);
+ int y = wxMax(noUnitsY * pixelsPerUnitY, sz.y);
+#else
+ int x = noUnitsX * pixelsPerUnitX;
+ int y = noUnitsY * pixelsPerUnitY;
+#endif
+ m_targetWindow->SetVirtualSizeHints( x, y );