从任何外部应用程序启动作曲家窗口时，Outlook插件均不显示

Question

Like when I promptly open outlook, and click on "New E-Mail", I see my addin loads on New Email window (That's where the addin is supposed to be). But when I open a doc in Word/Excel and click File>>Click and Save>>Send Using EMail>>Send as Attachment. Now it does open outlook "New Email window", but my addin doesn't load in the sidebar. Similarly, when opening Outlook following any link like "mailto:this@email.com"

Any suggestion/pointer as to how to achieve this behaviour?

Edit: I tried a timer, with an interval of around 14 seconds (just for testing). The timer event does execute but I don't get an inspector which should be MailItem. Here's the code:

 private void OnTimedEvent(object sender, ElapsedEventArgs e)
        {
            diagnosticLog.Debug("In OnTimed Event!");
            InspectorWrapper wrapper;
            foreach (Outlook.Inspector item in Application.Inspectors)
            {
                diagnosticLog.Debug("In OutlookInspector Loop: " + item.ToString());
                if (item is Outlook.MailItem)
                {
                    diagnosticLog.Debug("Inspector is a MialItem: " + item.ToString());
                    diagnosticLog.Debug("In OnTimed Event!");
                    if (!inspectorWrappersValue.TryGetValue(item, out wrapper))
                    {
                        inspectorWrappersValue.Add(item, new InspectorWrapper(item));
                        diagnosticLog.Debug("new Inspector Added");
                    }
                }
            }
        }

This line:

 foreach (Outlook.Inspector item in Application.Inspectors)

does get one inspector but it's never an Outlook.MailItem, hence I can't access the inspector where I should add my addin.

inspectorWrappersValue is a dictionary and it's in the constructor of InspectorWrapper that I initialize my Addin UI.

 inspectorWrappersValue.Add(item, new InspectorWrapper(item));

This inspector is being opened by Excel (sending attachment)

Answer 1

How/when do you add your own UI? Keep in mind that Inspectors.NewInspector event does not fire if the inspector is being opened using Simple MAPI or a mailto link.