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    <p>You need to create a wrapper class that exposes certain functionality of your game.</p> <p>For example. This function is in my c++ game engine editor wrapper.</p> <pre><code>extern "C" _declspec(dllexport) void SetPlayerPos(int id, const float x, const float y, const float z); </code></pre> <p>Then in your c# wpf application you can create a static class allowing you to use those functions</p> <pre><code>[DllImport(editorDllName, CallingConvention = CallingConvention.Cdecl)] public static extern void SetPlayerPos(int id, float x, float y, float z); </code></pre> <p>You will have to have functions for your basic functionality of the game engine through the dll. things like</p> <p>EditorMain RenderFrame / Update DXShutdown</p> <p>So then you can call editormain in your wpf app constructor</p> <pre><code>System.IntPtr hInstance = System.Runtime.InteropServices.Marshal.GetHINSTANCE(this.GetType().Module); IntPtr hwnd = this.DisplayPanel.Handle; NativeMethods.EditorMain(hInstance, IntPtr.Zero, hwnd, 1, this.DisplayPanel.Width, this.DisplayPanel.Height); </code></pre> <p>You will need to create a message filter class and initialize it in the constructor as well</p> <pre><code>m_messageFilter = new MessageHandler(this.Handle, this.DisplayPanel.Handle, this); </code></pre> <p>here's how your message filter class could look</p> <pre><code>public class MessageHandler : IMessageFilter { const int WM_LBUTTONDOWN = 0x0201; const int WM_LBUTTONUP = 0x0202; IntPtr m_formHandle; IntPtr m_displayPanelHandle; EngineDisplayForm m_parent; public MessageHandler( IntPtr formHandle, IntPtr displayPanelHandle, EngineDisplayForm parent ) { m_formHandle = formHandle; m_displayPanelHandle = displayPanelHandle; m_parent = parent; } public bool PreFilterMessage(ref Message m) { if (m.HWnd == m_displayPanelHandle || m.HWnd == m_formHandle) { switch (m.Msg) { case WM_LBUTTONDOWN: case WM_LBUTTONUP: { NativeMethods.WndProc(m_displayPanelHandle, m.Msg, m.WParam.ToInt32(), m.LParam.ToInt32()); if (m.Msg == WM_LBUTTONUP) { m_parent.SelectActor(); } return true; } } } return false; } public void Application_Idle(object sender, EventArgs e) { try { // Render the scene NativeMethods.RenderFrame(); } catch (Exception ex) { MessageBox.Show(ex.Message); } } </code></pre> <p>for doing win forms and wpf interop look here <a href="http://msdn.microsoft.com/en-us/library/ms742474.aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/ms742474.aspx</a></p>
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    1. USjacobsgriffith
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    1. COvery thorough answer, thank you! I really appreciate the code, I think I could get a start on this now :)
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