Question

我把新东西用在像样子中,因此我需要一些帮助,以解决这个问题。

基本想法是:

get image from QueryString, for example: /Default.aspx?src=http://www.google.hr/images/logo.png
convert it and resize to 16x16 px ".ico" IE compilant
save it to server, and print/echo URL to ico

Using ASP.NET 3.5 C# This is my try:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Drawing;
using System.IO;
using System.Net;

namespace WebApplication2
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

            var source = Request.QueryString["src"];

            if (source != null)
            {

                WebClient webclient = new WebClient();
                using (Stream stream = webclient.OpenRead(source))
                {
                    Bitmap iconbitmap = new Bitmap(System.Drawing.Image.FromFile(webclient));
                    var icon = Icon.FromHandle((iconbitmap).GetHicon());
                    FileStream fs = new FileStream("/test1.ico", FileMode.Create);
                    icon.Save(fs);
                    fs.Close();
                }
            }
        }
    }
}

EDIT:

Got some errors (Error 1 The best overloaded method match for System.Drawing.Image.FromFile(string) has some invalid arguments )

增编

Answer 1

为此:

        WebClient webclient = new WebClient();
        using (Stream stream = webclient.OpenRead(source))
        {
            Bitmap iconbitmap = new Bitmap(System.Drawing.Image.FromStream(stream));
            var icon = Icon.FromHandle((iconbitmap).GetHicon());
            FileStream fs = new FileStream("/test1.ico", FileMode.Create);
            icon.Save(fs);
            fs.Close();
        }

或者如果你不需要转换:

        WebClient webclient = new WebClient();
        webclient.DownloadFile(source, "/test1.ico");

Answer 2

System.Drawing.Image.FromFile(>> , 您正在通过。

友情链接