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C#:按钮颜色设置
迷你软件 · 2010-04-19 · via 博客园 - 迷你软件

    private void button1_Click(object sender, EventArgs e)
    {
        ColorDialog color 
= new ColorDialog();
        
if (color.ShowDialog() == DialogResult.OK)
        {
            Button button 
= (Button)sender;int r, g, b;
            r 
= color.Color.R;
            g 
= color.Color.G;
            b 
= color.Color.B;// RGB 色值
            string rgbString = r.ToString("X2"+ g.ToString("X2"+ b.ToString("X2");//颜色字符串 Alpha + RGB
            string colorString = color.Color.A.ToString("X2"+ rgbString;//按钮显示文本
            button.Text = "#" + rgbString;//按钮背景色
            button.BackColor = color.Color;//按钮字体颜色(ARGB),为按钮背景色的反色
            string foreColorString
            
= "FF" + (255 - r).ToString("X2")
            
+ (255 - g).ToString("X2")
            
+ (255 - b).ToString("X2");//按钮字体颜色
            button.ForeColor =
            System.Drawing.Color.FromArgb(
int.Parse(
            foreColorString, System.Globalization.NumberStyles.HexNumber));
        }
    }