<%@ WebHandler Language="C#" Class="UploadFile" Debug="true" %>
using System;
using System.Web;
public class UploadFile : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
HttpPostedFile f1 = context.Request.Files["f1"];
String fileExt = System.IO.Path.GetExtension(f1.FileName);
System.Drawing.Image image = System.Drawing.Image.FromStream(f1.InputStream);
int newWidth = 300, newHeight = 200;
if ((decimal)image.Width / image.Height > (decimal)newWidth / newHeight)
{
newHeight = Convert.ToInt32((decimal)image.Height * newWidth / image.Width);
}
else if ((decimal)image.Width / image.Height < (decimal)newWidth / newHeight)
{
newWidth = Convert.ToInt32((decimal)image.Width * newHeight / image.Height);
}
System.Drawing.Bitmap bmp
= new System.Drawing.Bitmap(newWidth, newHeight
); System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bmp);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
System.Drawing.Rectangle rectDestination
= new System.Drawing.Rectangle(0,
0, newWidth, newHeight
); g.DrawImage(image, rectDestination, 0, 0, image.Width, image.Height, System.Drawing.GraphicsUnit.Pixel);
bmp.Save(context.Server.MapPath("~/") + DateTime.Now.ToString("yyyyMMddHHmmss") + fileExt);
bmp.Dispose();
image.Dispose();
context.Response.Write("OK");
}
public bool IsReusable
{
get
{
return false;
}
}
}
//csharp/6892