CODEWITHSUNDEEP
c#.netasp.net
MiziaQ
MiziaQ

Reputation: 137

Taking screenshot of ASPX page

is there an easy way (preferably without having to import libraries) to take a screenshot of an ASP.NET web page (better yet an aspx control) in c# and saving it as an image? Many thanks in advance! Sample code or a link to a tutorial would be greatly appreciated...

Upvotes: 1

Views: 3232

Answers (4)

BrokenGlass
BrokenGlass

Reputation: 160852

You can programmatically create a web browser control and take a screenshot of its client area -contrary to popular belief the web browser does not have to be visible for this - just make sure the thread you use the WebBrowser control on runs in apartment state ApartmentState.STA. This approach will work both on the server and client side.

On a high level what you have to do to create the bitmap:

  1. Instantiate the WebBrowser control and set the desired width/height

  2. Browse to the URI of your choice

  3. Wait for the DocumentCompleted event

  4. Use the WebBrowser DrawToBitmap() method to extract the image

Upvotes: 0

Kalman Speier
Kalman Speier

Reputation: 1937

Here is a simple screenshot maker, wrote a few years ago. I am not sure what you like to achieve, but this one takes a screenshot of the whole screen. Hope this helps.

using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Windows.Forms;

public class ScreenshotManager
{
    private Image screenshot;

    public Image Screenshot
    {
        get
        {
            if (screenshot == null)
                MakeScreenshot();

                return screenshot;
            }
        }

    public MemoryStream ScreenshotToMemoryStream()
    {
        MemoryStream ms = new MemoryStream();
        Screenshot.Save(ms, ImageFormat.Jpeg);
        ms.Position = 0;
        return ms;
    }

    public byte[] ScreenshotToByteArray()
    {
        return ScreenshotToMemoryStream().ToArray();
    }

    public void MakeScreenshot()
    {
        screenshot = new Bitmap(Screen.PrimaryScreen.Bounds.Width,
            Screen.PrimaryScreen.Bounds.Height, PixelFormat.Format32bppArgb);

        var graphics = Graphics.FromImage(screenshot);
        graphics.CopyFromScreen(0, 0, Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y, Screen.PrimaryScreen.Bounds.Size, CopyPixelOperation.SourceCopy);
    }
}

Upvotes: 1

Dathan
Dathan

Reputation: 7446

One really kludgie solution: Write a WinForms app and include a Browser control. Navigate to the web app page you're trying to capture, and then use the programmatic screen capture approach described here.

Upvotes: 2

guildsbounty
guildsbounty

Reputation: 3361

Not 100% sure if this is exactly what you are looking for, but this tutorial should at least give you the ground work ability to capture a screen shot and save it. This more appears to be capping the entire screen, rather than just the aspx page, but at least it should be a start.

http://www.geekpedia.com/tutorial181_Capturing-screenshots-using-Csharp.html

http://weblogs.asp.net/jalpeshpvadgama/archive/2008/01/28/how-to-take-screenshot-in-c.aspx

The biggest piece of that seems to be 

using System.Drawing.Imaging;

Should be able to hash things out from there, I believe

Upvotes: 0

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