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How To Capture Web Page Screenshot In ASP.Net Using C#

In this tutorial you will learn how to capture webpage screenshot in asp.net using c#. You may got a requirement to capture the screenshot when user submits the form , etc. Most of the people purchase third party dll files and use them in their project to capture the screenshot of webpage. It is quite easy in asp.net and there is no need to purchase any dll. Let's have a look over how to do so.

using System.Drawing.Imaging;
using System.IO;
using System.Drawing;
using System;
using System.Collections;
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.Collections.Generic;
using System.Web.Services;
using System.Text;
using System.Windows.Forms;//must be included for capturing screenshot
public partial class capture_webpage_screenshot : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnSave_Click(object sender, EventArgs e)
{
Bitmap bitmap = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);
Graphics graphics = Graphics.FromImage(bitmap as System.Drawing.Image);
graphics.CopyFromScreen(25, 25, 25, 25, bitmap.Size);
bitmap.Save(@"c:\screenshot\myscreenshot.bmp", ImageFormat.Bmp);
}
}
The code is ready. Just you have to do the following steps.

* Right click the project name
* Add reference -> .net tab and then choose system.windows.forms namespace then press ok button.
* In .aspx code behind file you have to import the System.Windows.Forms namespace and that’s it.
By customizing parameters used in CopyFromScreen() function, you can figure out how to capture the small portion of the screen, if required. Create a folder and give folder path in c# code just like above i have given. You can customize the code as well and give the dynamic name of bitmap file every time it is generated.

This article has been taken from Nice Tutorials

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