void Paint2(Draw& dw, ImageBuffer& ib) {
		RGBA bckgColor;   bckgColor.r = 0; bckgColor.g = 0; bckgColor.b = 0; bckgColor.a = 0;
		Upp::Fill( ib.Begin(), bckgColor, ib.GetLength() );
		//Premultiply(ib);
		BufferPainter bp(ib, _drawMode);
		bp.Clear(RGBAZero());
	//	bp.Clear(White());
		bp.DrawRect(Rect(Point(0,0), Point( GetSize().cx, GetSize().cy/2)), White());
	//	bp.DrawLine(Point(0,GetSize().cy*3/4), Point(GetSize().cx,GetSize().cy*3/4), 4, White() );
		ChPaint(bp, GetSize(), _ctrlBckgndStyle );
		bp.DrawLine( Point(0,0), Point( GetSize().cx, GetSize().cy), 1 , Red() );
		
		for(const RGBA *s = ~ib; s != ib.End(); ++s) {
			ASSERT(s->r <= s->a && s->g <= s->a && s->b <= s->a);
		}
	}