只要执行了一个涉及到显示连接线段的操作，就可以设置连接线段的样式。为此，可以使用System.Drawing.Drawing2D命名空间中的LineJoin枚举的值，：Milter(默认值)、Beveled、MilterClipped和Round.
在下面的代码中，我们把Pen对象的LineJoin属性设置为值LineJoin.Bevel,然后用它绘制一个矩形：
1
private
void
Form1_Paint(
object
sender, PaintEventArgs e)
2 {
3 Graphics g = e.Graphics;
4 g.SmoothingMode = SmoothingMode.AntiAlias;
5 g.FillRectangle(Brushes.White, this .ClientRectangle);
6
7 Pen p = new Pen(Color.Black, 10 );
8 p.LineJoin = LineJoin.Bevel;
9 e.Graphics.DrawRectangle(p, 20 , 20 , 60 , 60 );
10 p.Dispose();
11 }
2 {
3 Graphics g = e.Graphics;
4 g.SmoothingMode = SmoothingMode.AntiAlias;
5 g.FillRectangle(Brushes.White, this .ClientRectangle);
6
7 Pen p = new Pen(Color.Black, 10 );
8 p.LineJoin = LineJoin.Bevel;
9 e.Graphics.DrawRectangle(p, 20 , 20 , 60 , 60 );
10 p.Dispose();
11 }
显示的图形为：
可以用Brush(画笔)进行填充，如：
1
private
void
Form1_Paint(
object
sender, PaintEventArgs e)
2 {
3 Graphics g = e.Graphics;
4 g.SmoothingMode = SmoothingMode.AntiAlias;
5 SolidBrush b = new SolidBrush(Color.Crimson);
6 g.FillRectangle(b, 20 , 20 , 40 , 40 );
7 b.Dispose();
8 }
2 {
3 Graphics g = e.Graphics;
4 g.SmoothingMode = SmoothingMode.AntiAlias;
5 SolidBrush b = new SolidBrush(Color.Crimson);
6 g.FillRectangle(b, 20 , 20 , 40 , 40 );
7 b.Dispose();
8 }
填充一个深红色的矩形
