DLL to read and write RTF with Active Messaging

MORE INFORMATION

MAPIRTF Sample
--------------

This sample illustrates how use Extended MAPI to allow RTF-formatting in a
message created by Active Messaging.

NOTE: If you are working against Exchange 2000 Server, you need to rebuild 
Mapirtf.dll using the C++ source Mapirtf.cpp provided in this article.
Specifically, we need to call RTFSync with RTF_SYNC_RTF_CHANGED | RTF_SYNC_BODY_CHANGED 
for the ulFlags parameter.

hr = RTFSync(lpMsg, RTF_SYNC_BODY_CHANGED | RTF_SYNC_RTF_CHANGED, &fUpdated);

Files
-----
The self-extracting executable, Mapirtf.exe, contains the following
files:

 - Readme.txt: Contains information about the sample
 - Mapirtf.dll: The release version of the DLL
 - Mapirtfd.dll: The debug version of the DLL
 - Vbmaprtf.exe: Microsoft Visual Basic Active Messaging client
 - Vbmaprtf.pdb: Debug symbols for Vbmaprtf.exe
 - CSource Folder: Contains the source file and Microsoft Visual C++
   version 5.0 workspace and project files for Mapirtf(d).dll
 - VBSource Folder: Contains the Microsoft Visual Basic version 5.0
   project, form, and module files for Vbmaprtf.exe


General
-------

The files Mapirtf.dll (release version) and Mapirtfd.dll (debug
version) contain the following functions:

 - "Writertf" writes RTF-formatted text to a message created by
   Active Messaging, when passed the profile name, entry ID of
   the message, entry ID of the message store, and the RTF text.

 - "Readrtf" reads RTF-formatted text from a message when passed
   the profile name, entry ID of the message, entry ID of the
   message store, and a string variable to which to store the text.

How to Use
----------

Before use, the DLL files should be placed in the Windows\System
directory (for Windows 95) or the Winnt\System32 directory (for
Windows NT.

In Visual Basic, declare the functions as follows:

    ' For the Debug version of the DLL, remark the following lines
    Public Declare Function writertf _
        Lib "mapirtf.dll" _
                         (ByVal ProfileName As String, _
                          ByVal MessageID As String, _
                          ByVal StoreID As String, _
                          ByVal cText As String) _
        As Integer


    Public Declare Function readrtf _
        Lib "mapirtf.dll" _
                      (ByVal ProfileName As String, _
                       ByVal SrcMsgID As String, _
                       ByVal SrcStoreID As String, _
                       ByRef MsgRTF As String) _
        As Integer


    ' For the Debug version of the DLL, un-remark the following lines
    'Public Declare Function writertf _
        Lib "mapirtfd.dll" _
                         (ByVal ProfileName As String, _
                          ByVal MessageID As String, _
                          ByVal StoreID As String, _
                          ByVal cText As String) _
        As Integer


    'Public Declare Function readrtf _
        Lib "mapirtfd.dll" _
                      (ByVal ProfileName As String, _
                       ByVal SrcMsgID As String, _
                       ByVal SrcStoreID As String, _
                       ByRef MsgRTF As String) _
        As Integer


Sample Code
-----------

The following sample code assumes that you have already declared the DLL
function as described above. For a more complete example, please see the
Visual Basic project accompanying this sample.

 - WriteRTF Sample. (This code assumes you already have a variable
   called cRTF defined which contains RTF-formatted text.)

    Sub SendRTF()
      Dim objSession, objMessage, objMessageFilter As Object
      Dim MessageID As String
      Dim bRet As Integer

      Set objSession = CreateObject("MAPI.Session")
      objSession.Logon

      ' Create a new message
      Set objMessage = objSession.Outbox.Messages.Add
      objMessage.Update
      MessageID = objMessage.ID

      bRet = WriteRTF(objSession.Name, objMessage.ID, _
                      objMessage.StoreID, cRTF)

      If Not bRet = 0 Then
         MsgBox "RTF Not Written Successfully", vbOKOnly, "VBSendRTF Warning"
      End If

      'Clear our current variable 
      Set objMessage = Nothing
 
      ' Get our message
      Set objMessage = objSession.GetMessage(MessageID) 

      ' Send the Message
      objMessage.Send ShowDialog:=True
      objSession.Logoff
    End Sub

 - ReadRTF Sample.

    Sub ReadRTF()
      Dim objSession, objMessage, objMessageFilter As Object
      Dim MessageID, cRTF As String
      Dim bRet As Integer

      Set objSession = CreateObject("MAPI.Session")
      objSession.Logon

      ' Read the first message in the Inbox
      Set objMessage = objSession.Inbox.Messages(1)
      objMessage.Update  ' to get a permanent Entry ID
      MessageID = objMessage.ID

      ' We must initialize the string variable we are passing
      ' to a string of the maximum length we want to read
      cRTF = Space(500)
      bRet = ReadRTF(objSession.Name, objMessage.ID, _
                      objMessage.StoreID, cRTF)

      If Not bRet = 0 Then
         MsgBox "RTF Not Written Successfully"
      Else
         MsgBox "RTF Text: " & Chr(13) & cRTF
      End If

      Set objMessage = Nothing
      objSession.Logoff
      Set objSession = Nothing
    End Sub