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    <p>The main problem will the ability to instantiate the Windows Forms window and set it's owner to that of the WPF window. The Winforms will want a IWin32Window which a WPF window isn't. To get around this, you need to make a custom class.</p> <p>I found this code on Mark Rendle's blog (I've copied it here as I had to use the Google Cache to access the page). <a href="http://blog.markrendle.net/post/WPF-Windows-Forms-interop-ShowDialog-extension-method.aspx" rel="nofollow noreferrer">LINK</a> - WARNING: May not work</p> <pre><code>class Shim : IWin32Window { public Shim(System.Windows.Window owner) { // Create a WindowInteropHelper for the WPF Window interopHelper = new WindowInteropHelper(owner); } private WindowInteropHelper interopHelper; #region IWin32Window Members public IntPtr Handle { get { // Return the surrogate handle return interopHelper.Handle; } } #endregion } </code></pre> <p>and it's method of use:</p> <pre><code>namespace System.Windows.Forms { public static class WPFInteropExtensions { public static DialogResult ShowDialog( this System.Windows.Forms.Form form, System.Windows.Window owner) { Shim shim = new Shim(owner); return form.ShowDialog(shim); } } } </code></pre> <p>I haven't tested this code, but reading around the internet, it appears that you can host Winforms windows inside of a WPF app.</p> <p>I just found <a href="http://msdn.microsoft.com/en-us/library/ms752055.aspx" rel="nofollow noreferrer">this</a> link on MSDN that has a very detailed description of how to interop a Win32 control/window in a WPF application.</p> <p>Hope these help you out.</p>
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    1. COThanks for the good information. I guess my question now is can I still use Application.DoEvents() from a WinForm launched from a WPF application?
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    2. COYou shouldn't be using Application.DoEvents() anyway.http://www.codinghorror.com/blog/archives/000159.html, but if you have to, I really couldn't say what will happen.
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    3. COI agree that I need to move away from DoEvents, but this app was originally written pre-.net, and it is everywhere.
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