🚀 go-pugleaf

"Fernando" <frr@easyjob.net> wrote in message
news:g97msv4nlj2o10dk4rrvkh6t71o09gcmfg@4ax.com...
> On Sat, 29 Nov 2003 14:33:27 -0800, "Dennis Jones" <djones@nospam.com>
wrote:
>
> >
> >"Fernando" <frr@easyjob.net> wrote in message
> >news:5kugsvouqe1sref2h2banvk4tiqo8v6tds@4ax.com...
> >> Hi,
> >>
> >> Is it really necsary to call MapiResolveName() before calling
> >> MapiSendMessage()?
> >>
> >> I'm not sure if I understand the need of using it....
> >
> >I have found that it *is necessary* when sending mail via Microsoft
Outlook,
> >but must *not* be used when using other mail clients, such as Outlook
> >Express or Netscape.
> >
> >I don't know why this is true.  I only know that it is what I had to do
to
> >get MAPI to work with different mail clients.
>
> Hhhmm... And how am I suposed to know what email client is present?

Read the registry.  All you care about is the "default" mail client:

      std::auto_ptr<TRegistry> pRegistry(new TRegistry);
      pRegistry->RootKey = HKEY_LOCAL_MACHINE;
      if ( !pRegistry->OpenKey( "\\Software\\Clients\\Mail", false ) )
return false;
      AnsiString DefaultMailClient;
      try
      {
        try
        {
          DefaultMailClient = pRegistry->ReadString( "" );
        }
        catch(...)
        {
          return false;
        }
      }
      __finally
      {
        pRegistry->CloseKey();
      }

      if ( DefaultMailClient == "Microsoft Outlook" )
      {
        // MapiResolveName allows MapiSendMail to work with Outlook, but
causes
        // MapiSendMail to fail when Outlook Express is used.

        error = MapiResolveName( Session, (unsigned int)Application->Handle,
(char *)EmailAddress, /*MAPI_DIALOG*/0, 0, pMapiRecip );
        if ( error != SUCCESS_SUCCESS )
        {
          pMapiRecip = 0;
          return false;
        }
        note.lpRecips = pMapiRecip;
      }

- Dennis