[in] Handle for the Simple MAPI session to be terminated. Session handles are returned by the MAPILogon function and invalidated by MAPILogoff. The value of the lhSession parameter must represent a valid session; it cannot be zero.
ulUIParam
[in] Parent window handle or zero, indicating that if a dialog box is displayed, it is application modal. If the ulUIParam parameter contains a parent window handle, it is of type HWND (cast to a ULONG). If no dialog box is displayed during the call, ulUIParam is ignored.
flFlags
Reserved; must be zero.
ulReserved
Reserved; must be zero.
Return Values
MAPI_E_FAILURE
The flFlags parameter is invalid or one or more unspecified errors occurred.
MAPI_E_INSUFFICIENT_MEMORY
There was insufficient memory to proceed. The session was not terminated.
MAPI_E_INVALID_SESSION
An invalid session handle was used for the lhSession parameter. The session was not terminated.
SUCCESS_SUCCESS
The call succeeded and the session was terminated.