个人代码库のC#背景色渐变的功能

/// <summary>

02	/// 实现“背景色渐变”的功能。【尚不完善】

03	/// </summary>

04	/// <param name="e"></param>

05	protected override void OnPaintBackground(PaintEventArgs e)

06

{

07	int y, dy;

08	//y=this.Height-this.ClientRectangle.Height;

09	y = this.ClientRectangle.Location.Y;

10	dy = this.ClientRectangle.Height / 256;

11	for (int i = 255; i >= 0; i--)

12

{

13

14	Color c = new Color();

15	c = Color.FromArgb(Convert.ToInt32(textBox1.Text.ToString()), i,Convert.ToInt32(textBox2.Text.ToString()));

16	SolidBrush sb = new SolidBrush(c);

17	Pen p = new Pen(sb, 100);

18	e.Graphics.DrawRectangle(p,this.ClientRectangle.X, y, this.Width,y+dy);

19	y = y + dy;

20

}

21

}