Here is a sample application that creates a Window with a single Button inside. When clicked, it connects to OOo (if not already connected) and creates a text document.

This works fine unless all the documents created in OOo are closed. Then, I get a DisposedException when trying to create the next chart. This is understandable, but OOo has been closed. However, trying to reconnect at this point gives me a segfault. Is there a better way to reconnect? I am working on linux (Ubuntu).

Note: This connects properly to OOo even if OOo is not open. It s once OOo has been opened by the application, then closed that we get the error.

All you really need to look at is the Connect method. I just wrapped it in a Gtk interface for easy testing.

using System; 
using unoidl.com.sun.star.uno; 
using unoidl.com.sun.star.lang; 
using unoidl.com.sun.star.text; 
using unoidl.com.sun.star.frame; 
using unoidl.com.sun.star.beans; 
using Gtk; 

namespace TestOOo { 
   class MainClass { 
      static XComponentContext componentContext; 
      static XMultiServiceFactory multiServiceFactory; 
      static XComponentLoader loader; 
      static XTextDocument document; 

      public static void Main (string[] args) 
      { 
         Application.Init(); 

         Window mainWindow = new Window("Test Window"); 
         mainWindow.Visible = true; 
         mainWindow.Destroyed += delegate { Application.Quit(); }; 
         Button button = new Button(Stock.Ok); 
         button.Clicked += delegate { Connect(); }; 
         mainWindow.Add(button); 
         mainWindow.ShowAll(); 

         Application.Run(); 
      } 

      static void Connect() 
      { 
         // Connect to OOo 
         if (componentContext == null) 
            componentContext = uno.util.Bootstrap.bootstrap(); 

         try { 
            multiServiceFactory = 
               (XMultiServiceFactory) componentContext.getServiceManager(); 
         } catch { 
            // This is where we want to reconnect, but trying to 
            // bootstrap() again segfaults. 

            // componentContext = uno.util.Bootstrap.bootstrap(); 
            // multiServiceFactory = 
            //   (XMultiServiceFactory) componentContext.getServiceManager(); 
         } 

         loader = (XComponentLoader) 
            multiServiceFactory.createInstance("com.sun.star.frame.Desktop"); 
         document = (XTextDocument) loader.loadComponentFromURL 
            ("private:factory/swriter", "_blank", 0, new PropertyValue[0]); 
      } 
   } 
}