wxMemoryDC memDC;
memDC.SelectObject(* backingBitmap);
dc.Blit(0, 0, backingBitmap->GetWidth(), backingBitmap->GetHeight(), &memDC, 0, 0);
wxMemoryDC memDC;
memDC.SelectObject(* backingBitmap);
dc.Blit(0, 0, backingBitmap->GetWidth(), backingBitmap->GetHeight(), &memDC, 0, 0);