Free() публичный Метод

public Free ( ) : bool
Результат bool
Пример #1
0
        private static void Main()
        {
            int deviceIndex = 0;
            int deviceCount = 0;
            KLST_DEVINFO_HANDLE deviceInfo;
            LstK lst = new LstK(KLST_FLAG.NONE);

            lst.Count(ref deviceCount);
            while (lst.MoveNext(out deviceInfo))
            {
                // Write some information about the device.
                string displayLine = String.Format("{0} of {1}: {2}",
                                                   ++deviceIndex,
                                                   deviceCount,
                                                   deviceInfo.DeviceDesc);
                Console.WriteLine(displayLine);
                Console.WriteLine("- " + deviceInfo.DeviceID);
                Console.WriteLine();
            }

            if (deviceCount == 0)
                Console.WriteLine("No devices found!\n");

            lst.Free();
        }
Пример #2
0
        public bool InitializeDevice()
        {
            if (deviceList != null)
                deviceList.Free();
            deviceList = null;
            if (usb != null)
                usb.Free();
            usb = null;

            feature_value_dict.Clear();
            feature_value_lookup_dict.Clear();

            foreach (Control ctrl in this.Controls)
            {
                if (ctrl is ComboBox)
                {
                    ComboBox box = (ComboBox)ctrl;
                    box.Items.Clear();
                }
            }

            deviceList = new LstK(KLST_FLAG.NONE);
            KLST_DEVINFO_HANDLE deviceInfo;

            DeviceInfo.Text = "";
            bool success = false;
            deviceList.MoveReset();
            while (deviceList.MoveNext(out deviceInfo))
            {
                if (
                    (deviceInfo.Common.Vid == vendorid1 || deviceInfo.Common.Vid == vendorid2) &&
                    (deviceInfo.Common.Pid == productid1 || deviceInfo.Common.Pid == productid2 || deviceInfo.Common.Pid == productid3 || deviceInfo.Common.Pid == productid4) &&
                     deviceInfo.DeviceInterfaceGUID.ToUpper() == "{D49AB938-53BA-498A-A848-8E2780A4A75F}"
                    )
                {
                    if (deviceInfo.Connected)
                    {
                        success = true;
                        break;
                    }
                }
            }
            if (!success)
            {
                DeviceInfo.Text += String.Format("Audio-Widget device not found!\r\n");
                if (deviceList != null)
                    deviceList.Free();
                deviceList = null;
                return false;
            }
            usb = new UsbK(deviceInfo);
            DeviceInfo.Text += String.Format("Opening usb device OK\r\n");

            usb.GetDescriptor((byte)USB_DESCRIPTOR_TYPE.DEVICE, 0, 0,
                globalBuffer, globalBufferLength, out LengthTransferred);

            USB_DEVICE_DESCRIPTOR deviceDescriptor = ByteToDeviceDescriptor(globalBuffer);

            usb.GetDescriptor((byte)USB_DESCRIPTOR_TYPE.CONFIGURATION, 0, 0,
                globalBuffer, globalBufferLength, out LengthTransferred);
            USB_CONFIGURATION_DESCRIPTOR configurationDescriptor = ByteToConfigDescriptor(globalBuffer);

            string product = GetStringDescriptor(deviceDescriptor.iProduct);
            string manufacturer = GetStringDescriptor(deviceDescriptor.iManufacturer);
            string serial = GetStringDescriptor(deviceDescriptor.iSerialNumber);

            DeviceInfo.Text += String.Format("Device: VID=0x{0:X04}/PID=0x{1:X04}\r\n", deviceDescriptor.idVendor, deviceDescriptor.idProduct);
            DeviceInfo.Text += String.Format("Product: {0}\r\n", product);
            DeviceInfo.Text += String.Format("Manufacturer: {0}\r\n", manufacturer);
            DeviceInfo.Text += String.Format("Serial number: {0}\r\n", serial);

            success = SendUsbControl(interfaceNumber, (byte)BMREQUEST_DIR.DEVICE_TO_HOST, (byte)BMREQUEST_TYPE.VENDOR,
                (byte)BMREQUEST_RECIPIENT.DEVICE, 0x71, 4, 1,
                   globalBuffer, globalBufferLength, out LengthTransferred);

            ushort max_feature_value_index = globalBuffer[0];
            ushort feature_index = 0;
            ComboBox control = null;

            for (ushort i = 0; i < max_feature_value_index; i++)
            {
                success = SendUsbControl(interfaceNumber, (byte)BMREQUEST_DIR.DEVICE_TO_HOST, (byte)BMREQUEST_TYPE.VENDOR,
                    (byte)BMREQUEST_RECIPIENT.DEVICE, 0x71, 8, i,
                       globalBuffer, globalBufferLength, out LengthTransferred);
                if (globalBuffer[0] == 63)
                    break;

                string output_str = "";
                for (int s = (int)LengthTransferred - 1; s >= 0; s--)
                    output_str += (char)globalBuffer[s];

                if (output_str == "end")
                {
                    feature_index++;
                    control = null;
                }
                else
                {
                    if (control == null)
                        control = FindFeatureControl(feature_index);

                    if (control != null)
                    {
                        control.Items.Add(output_str);
                        feature_value_dict[(int)i] = output_str;
                        feature_value_lookup_dict[feature_index.ToString() + output_str] = (int)i;
                    }
                }

                if (i > 100)
                    break;
            }
            foreach (Control ctrl in this.Controls)
            {
                if (ctrl is ComboBox)
                {
                    int index = Convert.ToInt32(ctrl.Tag);
                    ComboBox box = (ComboBox)ctrl;

                    success = SendUsbControl(interfaceNumber, (byte)BMREQUEST_DIR.DEVICE_TO_HOST, (byte)BMREQUEST_TYPE.VENDOR,
                        (byte)BMREQUEST_RECIPIENT.DEVICE, 0x71, 4, (byte)(2 + index),
                           globalBuffer, globalBufferLength, out LengthTransferred);
                    int feature_value_index = (int)globalBuffer[0];
                    if (feature_value_dict.ContainsKey(feature_value_index))
                    {
                        string text = feature_value_dict[feature_value_index].ToString();
                        box.SelectedIndex = box.Items.IndexOf(text);
                    }
                }
            }
            return true;
        }