public GDITest1()
{
InitializeComponent();
}
private void GDITest1_Paint(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics; //创建画板,这里的画板是由Form提供的.
Pen p = new Pen(Color.Gray, 2);//定义了一个蓝色,宽度为的画笔
g.DrawLine(p, 10, 10, 100, 100);//在画板上画直线,起始坐标为(10,10),终点坐标为(100,100)
//g.DrawRectangle(p, 10, 10, 100, 100);//在画板上画矩形,起始坐标为(10,10),宽为,高为
int i = 0;
while (i <10)
{
i++;
int f = i * 10;
g.DrawEllipse(p, f, f, f, f);//在画板上画椭圆,起始坐标为(10,10),外接矩形的宽为,高为
Thread.Sleep(1000);
}
}
Winform GDI 系列(1) 使用GDI 画线画圈

