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mapilogon (mapi32)
 
.
Summary
MAPILogon - Begins a Simple MAPI session, loading the default message store and address book providers.

C# Signature:

  /// <summary>
  /// The MAPILogon function begins a Simple MAPI session, loading the default message store
  /// and address book providers.
  /// </summary>
  [DllImport("MAPI32.DLL", CharSet=CharSet.Ansi)]
  public static extern uint MAPILogon(IntPtr ulUIParam, string lpszProfileName, string lpszPassword,
    uint flFlags, uint ulReserved, ref IntPtr lplhSession);

VB Signature:

<DllImport("MAPI32.dll", SetLastError:=True)> _
    Private Shared Function MAPILogon(ByVal uiParam As Integer, _
                      ByVal user As String, _
                      ByVal password As String, _
                      ByVal flags As Integer, _
                      ByVal reserved As Integer, _
                      ByRef session As Integer) As Integer
    End Function

User-Defined Structures:

None.

User-Defined Constants:

MAPI

Notes:

The calling application's working directory may be changed after using this function.

Microsoft Important Note: MAPI32 is not supported in a managed environment, memory leaks may be seen. Use the current alternatives: System.Net.Mail or WebDav or Exhange 2007 webservice interface.

Tips & Tricks:

Please add some!

Sample Code:

  uint error = MAPILogon(hwnd, null, null, MAPI_LOGON_UI, 0, ref session);
  return error == 0;

Alternative Managed API:

Do you know one? Please contribute it!

Documentation
MAPILogon on MSDN

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