可以通過(guò)指定起始的顏色，和結(jié)束的顏色進(jìn)行繪制漸變顏色，也可以給這個(gè)畫刷指定一個(gè)顏色的數(shù)組,，和顏色位置的數(shù)組。這個(gè)畫刷就會(huì)根據(jù)這些數(shù)組來(lái)繪制漸變顏色,。

下面是LinearGradientBrush實(shí)現(xiàn)的各作實(shí)例代碼：

1,，

 Graphics g = e.Graphics;
            LinearGradientBrush brush = new LinearGradientBrush(new Point(0, 0), new Point(10, 10), Color.Red, Color.Blue);
            g.FillRectangle(brush, 5, 5, 20, 20);
            brush.Dispose();

2，

Graphics g = this.CreateGraphics();
            Rectangle rect = new Rectangle(50,50,100,100);
            LinearGradientBrush brush = new LinearGradientBrush(rect, Color.Transparent, Color.Transparent, LinearGradientMode.Horizontal);
            Color[] colors = new Color[4];
            colors[0] = Color.Blue;
            colors[1] = Color.Black;
            colors[2] =Color.Red;
            colors[3] =Color.Yellow;

            ColorBlend blend = new ColorBlend();
            blend.Positions = new float[] { 0.0f, 0.5f,0.7f, 1.0f };
            blend.Colors = colors;
            brush.InterpolationColors = blend;
            g.FillRectangle(brush, rect);
            brush.Dispose();

3,，

LinearGradientBrush brush = new LinearGradientBrush(
this.ClientRectangle, Color.White,
Color.Red, LinearGradientMode.Horizontal);
Graphics g = this.CreateGraphics();
// g.FillRectangle(brush, 1, 1, 100, 100);
g.DrawString("Likecs.com", this.Font, brush, 100, 100);
brush.Dispose();

4,， LinearGradientBrush brush = new LinearGradientBrush(
this.ClientRectangle, Color.White,
Color.Red, LinearGradientMode.Horizontal);
brush.SetBlendTriangularShape(0.5f); //中間向兩邊漸變效果
Graphics g = this.CreateGraphics();
g.FillRectangle(brush, 1, 1, 1000, 100);
g.DrawString("Likecs.com", this.Font, brush, 100, 100);

5， LinearGradientBrush brush = new LinearGradientBrush(
this.ClientRectangle, Color.White,
Color.Red, LinearGradientMode.Horizontal);
brush.SetSigmaBellShape(0.2f, 0.2f);//創(chuàng)建基于鐘形曲線的漸變過(guò)渡過(guò)程,。
Graphics g = this.CreateGraphics();
g.FillRectangle(brush, 1, 1, 1000, 100);
g.DrawString("Likecs.com", this.Font, brush, 100, 100);

(責(zé)任編輯：小白菜)