>>179
>>83 に書いたけどこれでいい？

private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
　　Pen pen = new Pen(Color.Black, 2);
　　RectangleF[] rects = { new RectangleF(10.0F, 20.0F, 100.0F, 50.0F) };
　　e.Graphics.DrawRectangles(pen, rects);
}