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AutoCAD can't work with document object from external thread. That's the root of the problem. If I write method and put an CommandMethodAttribute - it will be work, but only from AutoCAD console... But, what if I need to do this operations from external application? First of all, need to specify the attribute on service behavior class <pre><code>[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single, ConcurrencyMode = ConcurrencyMode.Single, IncludeExceptionDetailInFaults = true)] </code></pre> Thus be used only one thread for all operations. The next step, in <code>Initialize()</code> method get the CurrentDispatcher object and put it in static variable. <pre><code>private static Dispatcher dispatcher; public void Initialize() { dispatcher = Dispatcher.CurrentDispatcher; this.host = new ServiceHost(typeof(Printer), new[] { new Uri("net.pipe://localhost") }); this.host.AddServiceEndpoint(typeof(IConnector), new NetNamedPipeBinding(), "GetPdfVersion"); this.host.Open(); } </code></pre> by this way, control of autocad execution context can be achieved. The next step is invoke the method through dispatcher <pre><code>public void GetPdfVersion(string filePath, string exportFilePath) { dispatcher.Invoke(new Action<string, string>(this.GetPdfVer), filePath, exportFilePath); } </code></pre> So, by using this method, I can run code, contained in <code>GetPdfVer</code> method from external application and get all benefits of using WCF instead of COM-interaction.
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1. PODocumentCollection.Open() function not working AutoCAD API
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1. USDenis Ionov
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1. PODocumentCollection.Open() function not working AutoCAD API
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