using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using PortableDeviceApiLib;
using System.IO;
using System.Runtime.InteropServices;
using System.Linq;namespace WindowsFormsApplication1
{public partial class Form1 : Form{PortableDeviceManagerClass devMgr = new PortableDeviceApiLib.PortableDeviceManagerClass();IPortableDeviceValues pValues = (IPortableDeviceValues)new PortableDeviceTypesLib.PortableDeviceValuesClass();PortableDeviceClass pPortableDevice = new PortableDeviceClass();PortableDeviceClass ppDevice = new PortableDeviceClass();string deviceID = string.Empty;public Form1(){InitializeComponent();this.Load += new EventHandler(Form1_Load);}void Form1_Load(object sender, EventArgs e){string[] deviceIds = EnumerateDevices();PortableDevice portableDevice;IPortableDeviceContent deviceContent;IPortableDeviceValues deviceValues = Connect(deviceIds[0], out portableDevice, out deviceContent);string deviceName = GetDeviceName(deviceValues);DeviceType deviceType = GetDeviceType(deviceValues);string firmwareVersion = GetFirmwareVersion(deviceValues);string manufacturer = GetManufacturer(deviceValues);string model = GetModel(deviceValues);List<string> storagesIds = GetChildrenObjectIds(deviceContent, "DEVICE");StringBuilder storagesSb = new StringBuilder();//设备支持WIFI则包含网络这个假设备，也是无法获取到容量的foreach (string storageId in storagesIds.Where(s=>!s.Contains("网络"))){ulong freeSpace;ulong storageCapacity;GetStorageCapacityAnFreeSpace(deviceContent, storageId, out freeSpace, out storageCapacity);storagesSb.AppendFormat("可用容量为{0}GB，总容量为{1}GB",Math.Round((double)freeSpace / 1024 / 1024 / 1024, 3), Math.Round((double)storageCapacity / 1024 / 1024 / 1024, 3));}Disconnect(portableDevice);textBox1.AppendText(string.Format("当前设备数目：{0}个\r\n", deviceIds.Length));textBox1.AppendText(string.Format("连接的设备名称：{0}\r\n", deviceName));textBox1.AppendText(string.Format("连接的设备类型：{0}\r\n", deviceType.ToString()));textBox1.AppendText(string.Format("连接的设备固件版本：{0}\r\n", firmwareVersion));textBox1.AppendText(string.Format("连接的设备制造厂商：{0}\r\n", manufacturer));textBox1.AppendText(string.Format("连接的设备型号：{0}\r\n", model));textBox1.AppendText(storagesSb.ToString());}/// <summary>/// 枚举所有便携式设备（MTP模式）/// </summary>/// <returns>返回设备id数组</returns>public string[] EnumerateDevices(){string[] devicesIds = null;PortableDeviceManagerClass deviceManager = new PortableDeviceManagerClass();uint deviceCount = 1;//设备数目初始值必须大于0deviceManager.GetDevices(null, ref deviceCount);//获取设备数目必须置第一个参数为nullif (deviceCount > 0){devicesIds = new string[deviceCount];deviceManager.GetDevices(devicesIds, ref deviceCount);}return devicesIds;}/// <summary>/// 连接设备/// </summary>/// <param name="DeviceId"></param>/// <param name="portableDevice"></param>/// <param name="deviceContent"></param>/// <returns></returns>public IPortableDeviceValues Connect(string DeviceId, out PortableDevice portableDevice, out IPortableDeviceContent deviceContent){IPortableDeviceValues clientInfo = (IPortableDeviceValues)new PortableDeviceTypesLib.PortableDeviceValuesClass();portableDevice = new PortableDeviceClass();portableDevice.Open(DeviceId, clientInfo);portableDevice.Content(out deviceContent);IPortableDeviceProperties deviceProperties;deviceContent.Properties(out deviceProperties);IPortableDeviceValues deviceValues;deviceProperties.GetValues("DEVICE", null, out deviceValues);return deviceValues;}/// <summary>/// 断开设备/// </summary>/// <param name="portableDevice"></param>public void Disconnect(PortableDevice portableDevice){portableDevice.Close();}/// <summary>/// 设备类型/// </summary>public enum DeviceType{Generic = 0,Camera = 1,MediaPlayer = 2,Phone = 3,Video = 4,PersonalInformationManager = 5,AudioRecorder = 6};/// <summary>/// 获取设备类型/// </summary>/// <param name="DeviceValues"></param>/// <returns></returns>public DeviceType GetDeviceType(IPortableDeviceValues DeviceValues){_tagpropertykey deviceTypeKey = new _tagpropertykey() { fmtid = new Guid("26d4979a-e643-4626-9e2b-736dc0c92fdc"), pid = 15 };uint propertyValue;DeviceValues.GetUnsignedIntegerValue(ref deviceTypeKey, out propertyValue);DeviceType deviceType = (DeviceType)propertyValue;return deviceType;}/// <summary>/// 获取设备名/// </summary>/// <param name="DeviceValues"></param>/// <returns></returns>public string GetDeviceName(IPortableDeviceValues DeviceValues){_tagpropertykey property = new _tagpropertykey() { fmtid = new Guid("ef6b490d-5cd8-437a-affc-da8b60ee4a3c"), pid = 4 };string name;DeviceValues.GetStringValue(ref property, out name);return name;}/// <summary>/// 获取固件版本/// </summary>/// <param name="DeviceValues"></param>/// <returns></returns>public string GetFirmwareVersion(IPortableDeviceValues DeviceValues){_tagpropertykey deviceTypeKey = new _tagpropertykey() { fmtid = new Guid("26d4979a-e643-4626-9e2b-736dc0c92fdc"), pid = 3 };string firmwareVersion;DeviceValues.GetStringValue(ref deviceTypeKey, out firmwareVersion);return firmwareVersion;}/// <summary>/// 获取制造商/// </summary>/// <param name="DeviceValues"></param>/// <returns></returns>public string GetManufacturer(IPortableDeviceValues DeviceValues){_tagpropertykey property = new _tagpropertykey() { fmtid = new Guid("26d4979a-e643-4626-9e2b-736dc0c92fdc"), pid = 7 };string manufacturer;DeviceValues.GetStringValue(ref property, out manufacturer);return manufacturer;}/// <summary>/// 获取型号/// </summary>/// <param name="DeviceValues"></param>/// <returns></returns>public string GetModel(IPortableDeviceValues DeviceValues){_tagpropertykey property = new _tagpropertykey() { fmtid = new Guid("26d4979a-e643-4626-9e2b-736dc0c92fdc"), pid = 8 };string model;DeviceValues.GetStringValue(ref property, out model);return model;}/// <summary>/// 获取设备或设备下文件夹的所有对象（文件、文件夹）的ObjectId/// </summary>/// <param name="deviceId"></param>/// <param name="parentId"></param>/// <returns></returns>public List<string> GetChildrenObjectIds(IPortableDeviceContent content, string parentId){IEnumPortableDeviceObjectIDs objectIds;content.EnumObjects(0, parentId, null, out objectIds);List<string> childItems = new List<string>();uint fetched = 0;do{string objectId;objectIds.Next(1, out objectId, ref fetched);if (fetched > 0){childItems.Add(objectId);}} while (fetched > 0);return childItems;}/// <summary>/// 获取总容量和可用容量/// </summary>/// <param name="deviceContent"></param>/// <param name="storageId"></param>/// <param name="freeSpace"></param>/// <param name="storageCapacity"></param>public void GetStorageCapacityAnFreeSpace(IPortableDeviceContent deviceContent, string storageId, out ulong freeSpace, out ulong storageCapacity){IPortableDeviceProperties deviceProperties;deviceContent.Properties(out deviceProperties);IPortableDeviceKeyCollection keyCollection = (IPortableDeviceKeyCollection)new PortableDeviceTypesLib.PortableDeviceKeyCollectionClass();_tagpropertykey freeSpaceKey = new _tagpropertykey();freeSpaceKey.fmtid = new Guid("01a3057a-74d6-4e80-bea7-dc4c212ce50a");freeSpaceKey.pid = 5;_tagpropertykey storageCapacityKey = new _tagpropertykey();storageCapacityKey.fmtid = new Guid("01a3057a-74d6-4e80-bea7-dc4c212ce50a");storageCapacityKey.pid = 4;keyCollection.Add(ref freeSpaceKey);keyCollection.Add(ref storageCapacityKey);IPortableDeviceValues deviceValues;deviceProperties.GetValues(storageId, keyCollection, out deviceValues);deviceValues.GetUnsignedLargeIntegerValue(ref freeSpaceKey, out freeSpace);deviceValues.GetUnsignedLargeIntegerValue(ref storageCapacityKey, out storageCapacity);}}
}