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POReuse C++/CLI user control in .NET Web Application
 

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    <p>I have a pretty complex class which extends <code>System.Windows.Forms.UserControl</code>. It's written in C++/CLI with the <code>/clr</code> switch, because it uses native C++ dlls. The class's main responsibility is acting as a wrapper for an unmanaged Direct3D9 dll which renders images over textures, zooms, pans, etc.</p> <p>Is there any way to reuse this class in a .NET web application? In other words, I want to get my user control to run inside a browser. The main uncertainties here are the access to native dlls, and the use of Direct3D. I'm setting up a small test to see if I can get this to work, but I'd like some input from someone else.</p> <p><strong>Update</strong>: I followed <a href="http://www.4guysfromrolla.com/articles/052604-1.aspx" rel="nofollow">this guide</a>. On the first try, I got an error saying that it could not load the control's dll or one of its dependencies. So, just for testing, I copied all the unmanaged dlls it uses to system32. Now I can load the page without errors, but I still cannot see the control. I placed the reference to it in the <code>About</code> page from the default C# Web App project, like so:</p> <pre><code>&lt;asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent"&gt; &lt;/asp:Content&gt; &lt;asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent"&gt; &lt;h2&gt; About &lt;/h2&gt; &lt;p&gt; Put content here. &lt;/p&gt; &lt;object id="MyWinControl1" height="200" width="200" classid="http:MNeoConsole.dll#MNeoConsole.MNeoConsoleControl"&gt; &lt;param name="Title" value="Locura loca" /&gt; &lt;param name="Visible" value="true" /&gt; &lt;/object&gt; &lt;/asp:Content&gt; </code></pre> <p>I'll try the ActiveX approach now, but even if that works, I guess that would force my clients to use Internet Explorer, or install some plugin, wouldn't it? That would be really bothersome.</p> <p><strong>Edit</strong>: By now, I'm willing to try other approaches. For example, since my C++/CLI class is just a wrapper, I'm willing to write another wrapper in some other laguage. If I go that way, that language should be as friendly with web applications as possible.</p>
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    1. COI posted the result of my first attempt, check out my updated answer
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