gdi+ 阴影

来源：互联网发布：linux 开启高性能编辑：程序博客网时间：2024/06/05 19:03

using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

using System.Drawing; //添加引用

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        GraphicsImage();//调用自定义方法输出带阴影的矩形
    }

    private void GraphicsImage()
    {
        int width = 380, hight = 200;
        Bitmap image = new Bitmap(width, hight);
        Graphics g = Graphics.FromImage(image); //创建画布
        try
        {
            g.Clear(Color.YellowGreen);   //清空背景色
            Font font1 = new Font("宋体", 12);   //设置字体类型和大小
            Brush brush = new SolidBrush(Color.Black); //设置画刷颜色
            Brush brush1 = new SolidBrush(Color.Brown);
            g.DrawString("绘制带有阴影效果的矩形", font1, brush, 80, 20);
            g.FillRectangle(brush, 80, 60, 200, 100); //绘制矩形
            g.FillRectangle(brush1, 75, 55, 200, 100);
            System.IO.MemoryStream ms = new System.IO.MemoryStream();
            image.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);
            Response.ClearContent();//清空缓存区
            Response.ContentType = "image/Gif";//设置输出格式为GIF
            Response.BinaryWrite(ms.ToArray());//写HTTP流
        }
        catch (Exception ms)
        {
            Response.Write(ms.Message);
        }
    }
}

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