WinCE

For checking whether the bluetooth stack is up and initialised, you can make use of the manual reset event BTH_NAMEDEVENT_STACK_INITED (L"system/events/bluetooth/StackInitialized").

You can get more information on this page.

Hi :)
First of all sorry guys, for the leave of absence, I have been busy lately.

In one of the tasks assigned for me, I had to bring the system back in to ON mode from idle, when any bluetooth activity happens. Activity in the sense, authentication request or a file transfer start etc.

File transfer or any other requests (except for pin request), can be tackled my monitoring the bluetooth stack events. But an authentication request cannot be obtained using the same. The the authentication ui for bluetooth is located in

WINCE600\PUBLIC\COMMON\OAK\DRIVERS\BLUETOOTH\SAMPLE\BTSVC

Its a service (BTSVC), and can modified directly or cloned By AuthenticationDlgProc and the corresponding dialog in the resource file, we can easily modify the behaviour during a bluetooth authentication request. Or a new application can be provided with the same functionality, do doing so , this service must be removed first as only one type of authentication ui will be allowed at a time.

Here is a sample code for monitoring incoming connection and authentication requests on a microsoft bluetooth stack:

DWORD BTActivityMonitor ( LPVOID lpParam )
{
MSGQUEUEOPTIONS mqOptions;
memset (&mqOptions, 0, sizeof(mqOptions));

mqOptions.dwFlags = 0;
mqOptions.dwSize = sizeof(mqOptions);
mqOptions.dwMaxMessages = 10;
mqOptions.cbMaxMessage = sizeof(BTEVENT);
mqOptions.bReadAccess = TRUE;

// Create message queue to receive BT events on
HANDLE hMsgQ = CreateMsgQueue(NULL, &mqOptions);
if (! hMsgQ) {
    wprintf(L"Error creating message queue.\r\n");
    goto exit_bt;
}

// Listen for all Bluetooth notifi cations
HANDLE hBTNotif = RequestBluetoothNotifications(
                    BTE_CLASS_CONNECTIONS | BTE_CLASS_DEVICE | BTE_CLASS_PAIRING,
                    hMsgQ);
if (! hBTNotif) {
    wprintf(L"Error in call to RequestBluetoothNotifications.\r\n");
    goto exit_bt;
}

wprintf(L"Waiting for Bluetooth notifications...\r\n");

while (FALSE == bStop) {
    DWORD dwWait = WaitForSingleObject (hMsgQ, INFINITE);
    if (WAIT_OBJECT_0 == dwWait) {
        //
        // We have got a Bluetooth event!
        //

        BTEVENT btEvent;
        DWORD dwFlags = 0;
        DWORD dwBytesRead = 0;

        BOOL fRet = ReadMsgQueue (hMsgQ, &btEvent, sizeof(BTEVENT), &dwBytesRead, 10, &dwFlags);
        if (! fRet) {
            wprintf(L"Error - Failed to read message from queue!\r\n");
            goto exit_bt;
        } else {
            wprintf(L"----------------------------------------\r\n");
            wprintf(L"Got event with id=%d.\r\n", btEvent.dwEventId);
        }
    } else {
        wprintf(L"Error - Unexpected return value from WaitForSingleObject!\r\n");
        goto exit_bt;
    }

}


exit_bt:
// Stop listening for Bluetooth notifications
if (hBTNotif && (! StopBluetoothNotifications(hBTNotif))) {
    wprintf(L"Warning! StopBluetoothNotifications returned FALSE.\r\n");
}

if (hMsgQ) {
    CloseMsgQueue(hMsgQ);
}

return 0;
}