RectangleObject 构造函数 (Point, Dimension, Pen, Brush)

 CONSTRUCTOR(
	oPoint AS Point,
	oDimension AS Dimension,
	oPen AS Pen,
	oBrush AS Brush
)

public RectangleObject(
	Point oPoint,
	Dimension oDimension,
	Pen oPen,
	Brush oBrush
)