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C#--GDI+的LinearGradientBrush类

命名空间:System.Drawing.Drawing2D

 

 LinearGradientBrush对象用颜色线性渐变填充图形。简言之,颜色渐变包含一种在两种指定的颜色之间渐变的颜色,渐变的方向是沿着指定角度的直线路径。例如:

 1 private void Form1_Paint(object sender, PaintEventArgs e) 2 { 3     Graphics g = e.Graphics; 4     LinearGradientBrush lgb = new LinearGradientBrush(new Point(0,0), 5     new Point(50,10), 6     Color.White, 7     Color.Black); 8     g.FillRectangle(lgb,this.ClientRectangle); 9     lgb.Dispose();10 }

图形为:

技术分享

 

使用矩形渐变:

 1  private void Form1_Paint(object sender, PaintEventArgs e) 2 { 3     Graphics g = e.Graphics; 4     LinearGradientBrush lgb = new LinearGradientBrush(new Rectangle(0,0,50,50), 5         Color.White, 6         Color.Black, 7         75f);   //75f 表示角度 8     g.FillRectangle(lgb,this.ClientRectangle); 9     lgb.Dispose();10 }  

 

C#--GDI+的LinearGradientBrush类