Outlook 2010 C++ add-in - HTML email body retrieval - c++

Question

I'm writing an outlook 2010 add-in, my add-in appends a footer to emails according to each email format (plain text/HTML), now I just discovered a problem that happens when I enable the outlook "Read emails as plain text" feature (http://support.microsoft.com/kb/831607), what happens is my add-in receives HTML emails as plain text, so it adds the footer and saves them accordingly which is a problem because after saving as plain text, the actual HTML version of the email is completely lost from outlook.
Here's my code (edited for brevity):
void CConnect::OnNewItem(IDispatch* item)
{
if (item)
{
CComQIPtr<Outlook::_MailItem> mailItem(item);
OlBodyFormat bodyFormat;
mailItem->get_BodyFormat(&bodyFormat);
CComBSTR body;
if(bodyFormat == olFormatPlain)
mailItem->get_Body(&body);
if(bodyFormat == olFormatHTML)
mailItem->get_HTMLBody(&body);
//append the footer here
if(bodyFormat == olFormatPlain)
mailItem->put_Body(newBody);
if(bodyFormat == olFormatHTML)
mailItem->put_HTMLBody(newBody);
mailItem->Save();
mailItem->Release();
}
}
I also tried getting the HTML body of emails no matter what their format actually is, but I get a generated HTML version of the plain text version, so all the original CSS and formatting is lost.
What I need is a way to be able to retrieve the original HTML version when the outlook "Read emails as plain text" feature is on, Any help would be greatly appreciated.

Answer 1

A bit dated, but just saw this now...
You are probably going to need to drop down to the MAPI level to do this properly. Something like:
LPMESSAGE MapiMessage;
HRESULT ResultCode = HrGetOneProp(MapiMessage, PR_HTML, &PropertiesValues);
LPSBinary HtmlBodyProperty = (LPSBinary)&PropertiesValues->Value.bin;
Integrating MAPI support into your addin is not as painful as some people might think. A good starting point is "Using MAPI to Create Outlook 2007 Items".