, _got_frame (false)
, _clear_required (false)
{
+ _panel->SetDoubleBuffered (true);
+#if wxMAJOR_VERSION == 2 && wxMINOR_VERSION >= 9
+ _panel->SetBackgroundStyle (wxBG_STYLE_PAINT);
+#endif
+
_v_sizer = new wxBoxSizer (wxVERTICAL);
SetSizer (_v_sizer);