How to open a new mail with Lotus c# (.Net)

Question

I am currently developing a small application in C# . Net allowing to perform different tasks, but here in one of my tasks I have to open a new default mail from Lotus. However I don’t find much documentation on it, so I’m a little lost and that’s why I’m in your hands :/ So I just need to be able to open Lotus with a new default email. Thank in advance ;)

Answer 1

        public void ComposeMemo(String sendto, String subject, String body)
    {
        //BLOC1 instantiate a Notes session and workspace
        Type NotesSession = Type.GetTypeFromProgID("Notes.NotesSession");
         Type NotesUIWorkspace = Type.GetTypeFromProgID("Notes.NotesUIWorkspace");
         Object sess = Activator.CreateInstance(NotesSession);
         Object ws = Activator.CreateInstance(NotesUIWorkspace);

        //BLOC2 open current user's mail file
        String mailServer = (String)NotesSession.InvokeMember("GetEnvironmentString", BindingFlags.InvokeMethod, null, sess, new Object[] { "MailServer", true });
        String mailFile = (String)NotesSession.InvokeMember("GetEnvironmentString", BindingFlags.InvokeMethod, null, sess, new Object[] { "MailFile", true });
        NotesUIWorkspace.InvokeMember("OpenDatabase", BindingFlags.InvokeMethod, null, ws, new Object[] { mailServer, mailFile });
        Object uidb = NotesUIWorkspace.InvokeMember("GetCurrentDatabase", BindingFlags.InvokeMethod, null, ws, null);
        Object db = NotesUIWorkspace.InvokeMember("Database", BindingFlags.GetProperty, null, uidb, null);
        Type NotesDatabase = db.GetType();

        //BLOC3 compose a new memo
        Object uidoc = NotesUIWorkspace.InvokeMember("ComposeDocument", BindingFlags.InvokeMethod, null, ws, new Object[] { mailServer, mailFile, "Memo", 0, 0, true });
        Type NotesUIDocument = uidoc.GetType();
        NotesUIDocument.InvokeMember("FieldSetText", BindingFlags.InvokeMethod, null, uidoc, new Object[] { "EnterSendTo", sendto });
        NotesUIDocument.InvokeMember("FieldSetText", BindingFlags.InvokeMethod, null, uidoc, new Object[] { "Subject", subject });
        NotesUIDocument.InvokeMember("FieldSetText", BindingFlags.InvokeMethod, null, uidoc, new Object[] { "Body", body });

        //BLOC4 bring the Notes window to the front
        String windowTitle = (String)NotesUIDocument.InvokeMember("WindowTitle", BindingFlags.GetProperty, null, uidoc, null);
        Interaction.AppActivate(windowTitle);
    }

The BLOC1 perform, it open the application but from BLOC2 the application no longer responds but I don’t know why, more in BLOC4 the word Interaction is not recognized