In the future, you'll probably get a much better response if you posted this to the C# forum instead of here. This forum is for ASP.NET questions, and yours is WinForm based. That being said, you will have to redraw the line in the OnPaint method when the form is repainted. Scrolling the form is one of the things that will cause a form to repaint, which is clearing the line you draw in the mouse event handler. What I would recommend is that you continue to draw the line initially in the mouse event handler, but keep a member level variable or two populated with the needed information so that you know when and how to redraw the line from OnPaint. Hope that helps. :) --Jesse

Since the embedded WinForm control is running on the client and your image exists on a web server, you're not going to be able to open the file directly. If your project is running in an intranet environment, you may want to simply place the image on a network share. That should allow you to run your code unmodified. If dealing with the web server environment, I'd recommend that you look into using the HttpRequest object to retrieve the image from your web server in streamformat. Your WinForm control can then construct the image using the Image.FromStream method. The link that tojamismis provided is a good place to see an example using streams, and MSDN has some good examples of using the HttpRequest object. Hope that helps. :) --Jesse

Hi there. For your first question, you may be interested in Dino Esposito's article Hosting .NET Applications in the Browser[^]. For the second - you can add javascript onclick attributes to your page just like any other markup. The .NET framework also provides functions for registering javascript on a page (see the .NET documentation on the Page class). The latter is typically done by custom control developers.

The .NET Framework doesn't have any classes that will allow you to do this natively. You'll need a device driver that will do the "dirty" work for you and it must expose an API that you can P/Invoke using VB.NET to get the information you need. You can pick up the book "Network Programming in .NET" for a complete discussion and examples. Or you can search the web for "Packet sniffing .NET" and piece the information together yourself. RageInTheMachine9532 "...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome