Message beep when dismissnig notification using SHNotificationAdd

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WinMobile5

C++

C

WinMobile6

Hey all,

I'm getting some strange behaviour when using SHnotificationAdd the code i'm using to add the notification is as follows.

char * szFunc = __FUNCTION__;
BUError(E_STANDARDPARAMS, L"CNOInt_Beep_notification start");

BU_TRY
{
    //init structure if not already
    if(pMsgBeepAlertData == NULL)
    {
        pMsgBeepAlertData = (SHNOTIFICATIONDATA*)BULocalAlloc(LMEM_ZEROINIT,sizeof(SHNOTIFICATIONDATA));
        if(pMsgBeepAlertData == NULL)
        {
            BUWinError(WE_STANDARDPARAMS,L"%hs : failed to alloc memory",szFunc);
            return FALSE;
        }
    }
    //Remove existing notification for class
    SHNOTIFICATIONDATA oldNotifyData = {0};
    oldNotifyData.cbStruct = sizeof(SHNOTIFICATIONDATA);
    LRESULT lres = SHNotificationGetData(&IID_NewMsg,ICON_ID_MESSAGEBEEP,&oldNotifyData );
    if (ERROR_SUCCESS == lres)
    {
        if (oldNotifyData.pszHTML) free((void *) oldNotifyData.pszHTML);
        if (oldNotifyData.pszTitle) free((void *) oldNotifyData.pszTitle);


        SetLastError(0);
        LRESULT lres = SHNotificationRemove(&IID_NewMsg, ICON_ID_MESSAGEBEEP);
        BUError(E_STANDARDPARAMS, L"SHNotificationRemove just called prior to add, lres=%u LastError=%u",lres,GetLastError());
    }
    else
    {
        BUError(E_STANDARDPARAMS, L"SHNotificationRemove NOT called - as notification dosn't exist lres=%u LastError=%u",lres,GetLastError());
    }

    //Set up structure
    pMsgBeepAlertData->cbStruct      = sizeof(SHNOTIFICATIONDATA);
    pMsgBeepAlertData->dwID          = ICON_ID_MESSAGEBEEP;
    pMsgBeepAlertData->npPriority    = SHNP_ICONIC;
    pMsgBeepAlertData->csDuration    = 5;
    pMsgBeepAlertData->hicon     = NULL;
    pMsgBeepAlertData->grfFlags      = SHNF_STRAIGHTTOTRAY | SHNF_CRITICAL;
    pMsgBeepAlertData->clsid     = IID_NewMsg;
    pMsgBeepAlertData->hwndSink      = NULL;
    pMsgBeepAlertData->pszHTML       = L"";
    pMsgBeepAlertData->pszTitle      = L"New Message";
    pMsgBeepAlertData->lParam       = ICON_ID_MESSAGEBEEP;

    //Add notification
    SetLastError(0);
    lres = SHNotificationAdd(pMsgBeepAlertData);
    if (ERROR_SUCCESS != lres)
    {
        BUError(E_STANDARDPARAMS, L"SHNotificationAdd Failed, lres=%u LastError=%u",lres,GetLastError());
        return FALSE;
    }

    BUError(E_STANDARDPARAMS, L"CNOInt_Beep_notification return true ,LastError=%u",GetLastError());
}
BU_CATCH_AND_LOG_ALL
return TRUE;

Trouble is that once it goes off, I get a second message beep afterwards.

Anyone have any idea why this occurs ???