HOWTO: How to Modify Recipient's Alias Through Extended MAPI

• Exchange Development Kit (EDK), versions 5.0, 5.5
• Extended Messaging Application Programming Interface (MAPI), version 1.0

SUMMARY

This article explains how to programmatically modify the alias attribute of a Microsoft Exchange Server recipient using Extended Messaging Application Programming Interface (MAPI) and Exchange Developers Kit (EDK) calls.

MORE INFORMATION

The code below demonstrates step-by-step how to accomplish the task. After getting a valid session and getting the address book, you open the entry with the MAPI_MODIFY flag. After that, you get the attributes and search through them looking for the one you want to change; in this case the recipient's alias 0x3A00001E. Once found, you modify and save the change.

Step-by-Step Example

1. Initialize MAPI with MAPIInitialize().



2. Logon to MAPI with MAPILogonEx().



3. Get the address book through IMAPISession::OpenAddressBook().



4. "Create" an entryid to the recipient with the EDK function, HrCreateDirEntryIdEx().



5. Open the entry by using the OpenEntry() call.



6. Get the attributes with IMAPIProp::GetProps().



7. Change the attribute with IMAPIProp::SetProps().



8. Save changes using IMAPIProp::SaveChanges().

Sample Code

   #include <MAPIUTIL.H>
   #include "edkutils.h"

   #define FAILURE -1

   int main( void )
   {
      LPADRBOOK lpAdrBook;
      LPMAPISESSION pSession = NULL;
      HRESULT hRes = 0;
      ULONG   ulObjType = 0;
      LPMAPIPROP lpEntry   = NULL;
      FLAGS flFlags = MAPI_ALLOW_OTHERS | MAPI_EXTENDED;
      ULONG cbeid;
      LPENTRYID peid = NULL;
      ULONG ulValues;
      LPSPropValue pPropValues = NULL;
      // Recipient name.
      char* szExName ="/o=BIGOPERA/ou=TURANDOT/cn=Recipients/cn=RobertoC";
      char* szNewalias = "CarlosA";

      // Initialize MAPI.
      hRes = MAPIInitialize( NULL );
      if ( FAILED( hRes ) )
         throw (FAILURE);

      // Logon to MAPI.
      hRes = MAPILogonEx( 0, "Galileo Galilei", NULL,
                          flFlags, &pSession );
      if ( FAILED( hRes ) )
         throw (FAILURE);

      // Open the address book.
      hRes=pSession->OpenAddressBook(0, 0, MAPI_ACCESS_MODIFY,
                                      &lpAdrBook );
      if ( FAILED( hRes ) )
         throw (FAILURE);

      // Obtain the entry id for the recipient object.
      hRes = HrCreateDirEntryIdEx(lpAdrBook, szExName, &cbeid, &peid);
      if ( FAILED( hRes ) )
         throw (FAILURE);

      // Now open the recipient object.
      hRes = lpAdrBook->OpenEntry( cbeid, peid, NULL,
                                   MAPI_MODIFY, &ulObjType,
                                  (LPUNKNOWN*) &lpEntry );
      if ( FAILED( hRes ) )
         throw (FAILURE);

      // Get the properties.
      hRes = ((IMAPIProp *) lpEntry)->GetProps( NULL,
                                                0,
                                                &ulValues,
                                                &pPropValues );
      if ( FAILED( hRes ) )
         throw (FAILURE);

      // Modify alias name for recipient.
      for ( ULONG ul = 0; ul < ulValues; ul++ )
      {

         if ( 0x3A00001E == pPropValues[ul].ulPropTag )
         {

             // Modify property.
             pPropValues[ul].Value.lpszA = szNewalias;

             // Set properties.
             hRes = ((IMAPIProp *) lpEntry)->SetProps( 1,
                                                       &pPropValues[ul],
                                                        NULL );
             if ( FAILED( hRes ) )
                 throw (FAILURE);

             // Save changes.
             hRes = ((IMAPIProp *) lpEntry)->SaveChanges( 0 );
             if ( FAILED( hRes ) )
                 throw (FAILURE);

             break;
         }
      }
     return 0;
    } 

Additional query words:

Keywords : kbAPI kbEDK kbMsg kbMAPI100 MAPIIAB
Version : WINDOWS:1.0,5.0,5.5
Platform : WINDOWS
Issue type : kbhowto