How do I input a text in Office Outlook( or Word) using ATL Add-in Ribbon button?

See more:

C++

MFC

ATL

Outlook

MS-Word

text

I build a ATL Outlook(Word) Add in Project.
(I followed this article http://msdn.microsoft.com/en-us/library/ee941475.aspx[^])

Now, I want to input a text in Outlook new mail editor(or Word Document) when I click ribbon button.

Here's my code:

void CConnect::InsertTest()
{
   CComPtr<word::_document xmlns:word="#unknown"> spDoc;
   CComPtr<outlook::_application xmlns:outlook="#unknown"> spAppO;
   CComPtr<word::_application> spAppW;
   BSTR prop = SysAllocString(L"http://www.msn.com");
   //ATLASSERT(spDoc);          <- error
   //HRESULT hr = spAppW->get_ActiveDocument(&spDoc);        <- Error
}
</word::_application></outlook::_application></word::_document>

now, it's everything what I know. lol

Does anyone know how to do it?
please help. I already have wasted a lot of time.