Question

我已经编写了一个扫描蓝牙设备的算法并将其添加到我的列表框中。现在我希望这个算法在后台永久运行。但我的Backgroundworker无法正常工作。甚至我的用户界面也没有回应。

private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
         toolStripStatusLabel1->Text="Active";
         toolStripProgressBar1->Value=100;
         backgroundWorker1->RunWorkerAsync();
     }

private: System::Void backgroundWorker1_DoWork(System::Object^  sender, System::ComponentModel::DoWorkEventArgs^  e) {
         BluetoothFunction(); \\It tells me here is an Error
     }

void BluetoothFunction(){
        m_bt = BluetoothFindFirstRadio(&m_bt_find_radio, &m_radio);

        do{
            vector<wstring> vec;
            int m_device_id=0;
            int m_radio_id = 0;
            m_radio_id++;
            BluetoothGetRadioInfo(m_radio, &m_bt_info);

            m_search_params.hRadio = m_radio;
            ::ZeroMemory(&m_device_info, sizeof(BLUETOOTH_DEVICE_INFO));
            m_device_info.dwSize = sizeof(BLUETOOTH_DEVICE_INFO);
            m_bt_dev = BluetoothFindFirstDevice(&m_search_params, &m_device_info);

            do{
                wostringstream tmp;
                ++m_device_id;

                //Konvertiere Byte in String
                for (int i = 0; i < 6; i++) {
                  tmp << hex << m_device_info.Address.rgBytes [i];
                  if (i < 5)
                    tmp << L':';
                }                   

                //Verfügbarkeitsliste
                vec.push_back(tmp.str());

                listBox2->Items->Add(System::Runtime::InteropServices::Marshal::PtrToStringUni(IntPtr((void*) tmp.str().c_str())));

            }while(BluetoothFindNextDevice(m_bt_dev, &m_device_info));
            //searchId(vec, targetId); 
            BluetoothFindDeviceClose(m_bt_dev);

        } while(BluetoothFindNextRadio(&m_bt_find_radio, &m_radio));
        BluetoothFindRadioClose(m_bt);      
}

我猜我的蓝牙功能参数不正确。

如果有人可以帮助我，我会很高兴的。

此致

BackgroundWorker DoWork使用蓝牙功能C ++异步“不工作”

0 个答案: