+void wxWindowMSW::SetDoubleBuffered(bool on)
+{
+ // Get the current extended style bits
+ long exstyle = wxGetWindowExStyle(this);
+
+ // Twiddle the bit as needed
+ if ( on )
+ exstyle |= WS_EX_COMPOSITED;
+ else
+ exstyle &= ~WS_EX_COMPOSITED;
+
+ // put it back
+ wxSetWindowExStyle(this, exstyle);
+}
+