码迷,mamicode.com
首页 > 其他好文 > 详细

GDI+的应用

时间:2014-08-28 22:32:26      阅读:280      评论:0      收藏:0      [点我收藏+]

标签:color   os   ar   for   art   代码   sp   line   on   

在VS中创建窗体

(1)CDI+清除绘画面

在窗体中写入代码:

protected override void OnPaint(PaintEventArgs e){

  Graphics g=e.Graphics;

  g.Clear(Color.Pink);

  g.Dispose();

}

(2)CGD+绘制多边形

protected override void OnPaint(PaintEventArgs e){

  Graphics g=e.Graphics;

  Point[] points=new Point[]{

          new Point(200,200),

          new Point(230,230),

          new Point(260,300),

          new Point(300,350)

};

  g.DrawPolygon(new Pen(Color.Red),point);

  g.Dispose();

}

(3)GDI+填充颜色

protected override void OnPaint(PaintEventArgs e){

  //简单填充颜色

  Graphics g=e.Graphics;

  g.FillRectangle(Brushes.Red,new Rectangle(20,20,100,200));

  //渐变颜色填充

  Brush brush=new LinearGradientBrush(new Point(10,10),new Point(10,10),Color.Yellow,Color.White);

   g.FillRectangle(brush,new Rectangle(20,20,100,170));  

  g.Dispose();

}

(4)GDI+绘画路径

protected override void OnPaint(PaintEventArgs e){

   Graphics g = e.Graphics;
            Point[] points = new Point[]{
                 new Point(100,100),
                 new Point(100,150),
               new Point(150,200),
              new Point(50,200),
            };

  GraphicsPath path = new GraphicsPath(

      points,new byte[]{

          (byte)PathPointType.Start,

          (byte)PathPointType.Line,

          (byte)PathPointType.Line,

          (byte)PathPointType.Line 

      );

}

  g.DrawPath(new Pen(Color.Red),path);

  g.Dispose();

}

(4)GDI+绘制字符串

protected override void OnPaint(PaintEventArgs e){

  Graphics g = e.Graphics;

  //普通绘制字符串

  Font font1=new System.Drawing.Font("宋体",30);

  g.DrawingString("ABCD",font1,Brushes.Red,new PointF(30,30));

  //带格式的字符串

         Font font2 = new System.Drawing.Font("宋体", 30);
            RectangleF rect = new RectangleF(100,100,100,200);
            g.DrawRectangle(new Pen(Color.Red),new Rectangle(100,100,100,200));
            //字符串格式对象
            StringFormat sf = new StringFormat();
            sf.Alignment = StringAlignment.Center;//在矩形中居中
            sf.LineAlignment = StringAlignment.Center;
            g.DrawString("abcd",font2,Brushes.Red,rect,sf);
            g.Dispose();

}

(5)GDI+纹理绘画图片

 protected override void OnPaint(PaintEventArgs e)
        {
            Graphics g = e.Graphics;
            Image image = Image.FromFile("图片路径");
            //纹理画笔
            Brush brush = new TextureBrush(image);//刷出来的位置都有image的存在
            g.DrawRectangle(new Pen(Color.Pink),40,40,300,300);
            g.FillRectangle(brush,new Rectangle(40,40,300,300));
            g.Dispose();

        }

GDI+的应用

标签:color   os   ar   for   art   代码   sp   line   on   

原文地址:http://www.cnblogs.com/ss977/p/3942428.html

(0)
(0)
   
举报
评论 一句话评论(0
登录后才能评论!
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!