windows 蓝牙 api，主动配对手机失败。

Question

下面是我的配对代码 和 回掉函数，我发现，我的电脑主动配对手机，手机上会提示失败："无法和xxx-pc配对"，但是我用手机主动配对电脑，就提示配对成功，请问各位大神，哪里有问题呢？

1.配对代码

 BOOL CBluetooth::BtSocketAuthenticate(char *szAddr)
{
    SOCKADDR_BTH sa = { 0 };
    int sa_len = sizeof(sa);
    DWORD dwRet;
    BLUETOOTH_DEVICE_INFO  btdi = { 0 };
    HBLUETOOTH_AUTHENTICATION_REGISTRATION hRegHandle = 0;

    // initialize windows sockets
    WORD wVersionRequested;
    WSADATA wsaData;
    wVersionRequested = MAKEWORD(2, 0);
    if (WSAStartup(wVersionRequested, &wsaData) != 0) {
        return FALSE;
    }

    dwRet = BluetoothRegisterForAuthenticationEx(&m_device.bdi, &hRegHandle, &BluetoothAuthCallback, NULL);
    if (dwRet != ERROR_SUCCESS)
    {
        return FALSE;
    }

    if ( m_device.bdi.fAuthenticated ) 
    {   
        return TRUE;    // 已经配对了
    }

    DWORD status = BluetoothUpdateDeviceRecord ( &m_device.bdi );
    if ( ERROR_SUCCESS != status )
        return FALSE;

    // authenticate device (will call authentication callback)
    AUTHENTICATION_REQUIREMENTS authreqs = MITMProtectionRequired ;
    dwRet = BluetoothAuthenticateDeviceEx(NULL, m_radio.hRadio , &m_device.bdi, NULL, authreqs);
}

2. 回掉函数

 BOOL CALLBACK BluetoothAuthCallback(LPVOID pvParam, PBLUETOOTH_AUTHENTICATION_CALLBACK_PARAMS pAuthCallbackParams)
{
    DWORD dwRet;

    BLUETOOTH_AUTHENTICATE_RESPONSE AuthRes;
    AuthRes.authMethod = pAuthCallbackParams->authenticationMethod;

    AuthRes.bthAddressRemote = pAuthCallbackParams->deviceInfo.Address;
    AuthRes.negativeResponse = FALSE;
    AuthRes.numericCompInfo.NumericValue = pAuthCallbackParams->Numeric_Value;

    // Send authentication response to authenticate device
    dwRet = BluetoothSendAuthenticationResponseEx(NULL, &AuthRes);
}

Answer 1

BOOL CALLBACK BluetoothAuthCallback(LPVOID pvParam, PBLUETOOTH_AUTHENTICATION_CALLBACK_PARAMS pAuthCallbackParams)
{
DWORD dwRet;

BLUETOOTH_AUTHENTICATE_RESPONSE AuthRes;
AuthRes.authMethod = pAuthCallbackParams->authenticationMethod;

AuthRes.bthAddressRemote = pAuthCallbackParams->deviceInfo.Address;
AuthRes.negativeResponse = FALSE;
AuthRes.numericCompInfo.NumericValue = pAuthCallbackParams->Numeric_Value;

// Send authentication response to authenticate device
dwRet = BluetoothSendAuthenticationResponseEx(NULL, &AuthRes);

}

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这部分应该有问题，检查一下