Receive embedded RTF objects in Outlook 2007(To,Bcc,Cc - Fields) - email

Question

I have a problem with the Rich Text Fields of Outlook 2007. I try to read the values(email addresses) in the "To,Bcc,Cc Fields". I've read that the problem is known and that you only can read the fields when the mailItem in Outlook is saved.
So, I tried to access the email addresses with a window handler and the SendMessage function. But it only returns :
{\rtf1\ansi\ansicpg1252\deff0\deflang1031{\fonttbl{\f0\fswiss\fprq2\fcharset0
Tahoma;}} {*\generator Riched20 12.0.6606.1000;}\viewkind4\uc1
\pard\f0\fs17{\pict\wmetafile0
So I think Outlook replaces the email address with an embedded object and this object shows the email address. Can anybody help and tell me how to access the object and get the email address?

Answer 1

Use the MailItem.Recipients collection - it will be populated at all times.

Answer 2

I know this, but in Outlook 2007 there is a bug or missing feature. When you delete a (Email-Address)recipient from the to field, the mailItem is not refreshing its recipients collection. It only refreshes when a recipient is added and resolved!
So the only way I see is to read the content of the To-Field is..via SendMessage.
private int EditStreamProc(MemoryStream dwCookie, IntPtr pbBuff, int cb, out int pcb)
{
pcb = cb;
byte[] buffer = new byte[cb];
Marshal.Copy(pbBuff, buffer, 0, cb);
dwCookie.Write(buffer, 0, cb);
return 0;
}
private delegate int EditStreamCallback(MemoryStream dwCookie, IntPtr pbBuff, int cb, out int pcb);
[StructLayout(LayoutKind.Sequential)]
private struct EDITSTREAM
{
public MemoryStream dwCookie;
public int dwError;
public EditStreamCallback pfnCallback;
}
[DllImport("user32.dll", CharSet = CharSet.Auto)]
private static extern IntPtr SendMessage(IntPtr hwnd, uint msg, uint wParam, ref EDITSTREAM lParam);
private const int WM_USER = 0x0400;
private const int SF_RTF =3;
private const int EM_STREAMOUT = WM_USER + 74;
public string ReadRTFContentInOL2007(IntPtr handle)
{
string result = String.Empty;
using (System.IO.MemoryStream stream = new MemoryStream())
{
EDITSTREAM editStream = new EDITSTREAM();
editStream.pfnCallback = new EditStreamCallback(EditStreamProc);
editStream.dwCookie = stream;
SendMessage(handle, EM_STREAMOUT, SF_RTF, ref editStream);
stream.Seek(0, SeekOrigin.Begin);
using (StreamReader reader = new StreamReader(stream))
{
result = reader.ReadToEnd();
}
}
return result;
}
When the email addresses are resolved then i receive this :
{\rtf1\ansi\ansicpg1252\deff0\deflang1031{\fonttbl{\f0\fswiss\fprq2\fcharset0 Tahoma;}} {*\generator Riched20 12.0.6606.1000;}\viewkind4\uc1 \pard\f0\fs17{\pict\wmetafile0
So Outlook replaces the plain text with an object and I need to receive all the Information of the RTF Content! I think somewhere in this content must be the email address. To - Field Class is : RichEdit20WPT