How to take snapshot (screenshot) using asp.net (C#, VB)

Introduction: In this article I will explain how to take snapshot/screenshot of desktop or a particular open window using asp.net (C#, VB)

Description:

In the previous article I have explained  Upload multiple files using Fileupload control in asp.net,  Upload multiple files and save their pathto database using Fileupload control in asp.net and Create Temporary table dynamically and bind to Gridview in asp.net.

Html Markup Of page:

<asp:Button ID="Button1" runat="server" Text="Take ScreenShot" onclick="Button1_Click"/>

Note: - First of all we have to add the reference of System.Windows.Forms library.

C# Code:

using System.Windows.Forms;

using System.Drawing.Imaging;

using System.Drawing;

    protected void Button1_Click(object sender, EventArgs e)

    {      

        Capture("E:/SS/" + Guid.NewGuid() + "ScreenShot.png");

    }

    public static void Capture(string CapturedScreenShot)

    {

        try

        {

            Bitmap bitmap = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);

            Graphics graphics = Graphics.FromImage(bitmap as System.Drawing.Image);

            graphics.CopyFromScreen(5, 5, 5, 5, bitmap.Size);

            bitmap.Save(CapturedScreenShot, ImageFormat.Png);

        }

        catch (Exception ex)

        {

        }

    }

VB Code:

Imports System.Drawing.Imaging

Imports System.Drawing

Imports System.Windows.Forms

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click

        Capture("E:/SS/" & Convert.ToString(Guid.NewGuid()) & "ScreenShot.png")

    End Sub

    Public Shared Sub Capture(ByVal CapturedScreenShot As String)

        Try

            Dim bitmap As New Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height)

            Dim graphics__1 As Graphics = Graphics.FromImage(TryCast(bitmap, System.Drawing.Image))

            graphics__1.CopyFromScreen(5, 5, 5, 5, bitmap.Size)

            bitmap.Save(CapturedScreenShot, ImageFormat.Png)

        Catch ex As Exception

        End Try

    End Sub

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