C#完成挪用迅雷下載的辦法

C#完成挪用迅雷下載的辦法。本站提示廣大學習愛好者：（C#完成挪用迅雷下載的辦法）文章只能為提供參考，不一定能成為您想要的結果。以下是C#完成挪用迅雷下載的辦法正文

迅雷下載是今朝應用異常廣泛的一個下載軟件，本文實例展現了C#完成挪用迅雷下載的辦法。詳細辦法以下：

今朝該實例代碼只支撐HTTP協定，詳細功效代碼以下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using System.Threading;

namespace ThunderSDK
{
 class Program
 {
 enum enumTaskStatus
 {
  enumTaskStatus_Connect = 0,         // 曾經樹立銜接
  enumTaskStatus_Download = 2,        // 開端下載 
  enumTaskStatus_Pause = 10,         // 暫停
  enumTaskStatus_Success = 11,        // 勝利下載
  enumTaskStatus_Fail = 12,          // 下載掉敗
 };
 public const int XL_SUCCESS = 0;
 public const int XL_ERROR_FAIL = 0x10000000;

 // 還沒有停止初始化
 public const int XL_ERROR_UNINITAILIZE = XL_ERROR_FAIL + 1;

 // 不支撐的協定，今朝只支撐HTTP
 public const int XL_ERROR_UNSPORTED_PROTOCOL = XL_ERROR_FAIL + 2;

 // 初始化托盤圖標掉敗
 public const int XL_ERROR_INIT_TASK_TRAY_ICON_FAIL = XL_ERROR_FAIL + 3;

 // 添加托盤圖標掉敗
 public const int XL_ERROR_ADD_TASK_TRAY_ICON_FAIL = XL_ERROR_FAIL + 4;

 // 指針為空
 public const int XL_ERROR_POINTER_IS_NULL = XL_ERROR_FAIL + 5;

 // 字符串是空串
 public const int XL_ERROR_STRING_IS_EMPTY = XL_ERROR_FAIL + 6;

 // 傳入的途徑沒有包括文件名
 public const int XL_ERROR_PATH_DONT_INCLUDE_FILENAME = XL_ERROR_FAIL + 7;

 // 創立目次掉敗
 public const int XL_ERROR_CREATE_DIRECTORY_FAIL = XL_ERROR_FAIL + 8;

 // 內存缺乏
 public const int XL_ERROR_MEMORY_ISNT_ENOUGH = XL_ERROR_FAIL + 9;

 // 參數不正當
 public const int XL_ERROR_INVALID_ARG = XL_ERROR_FAIL + 10;

 // 義務不存在
 public const int XL_ERROR_TASK_DONT_EXIST = XL_ERROR_FAIL + 11;

 // 文件名不正當
 public const int XL_ERROR_FILE_NAME_INVALID = XL_ERROR_FAIL + 12;

 // 沒有完成
 public const int XL_ERROR_NOTIMPL = XL_ERROR_FAIL + 13;

 // 曾經創立的義務數到達最年夜義務數，沒法持續創立義務
 public const int XL_ERROR_TASKNUM_EXCEED_MAXNUM = XL_ERROR_FAIL + 14;

 // 義務類型未知
 public const int XL_ERROR_INVALID_TASK_TYPE = XL_ERROR_FAIL + 15;

 // 文件曾經存在
 public const int XL_ERROR_FILE_ALREADY_EXIST = XL_ERROR_FAIL + 16;

 // 文件不存在
 public const int XL_ERROR_FILE_DONT_EXIST = XL_ERROR_FAIL + 17;

 // 讀取cfg文件掉敗
 public const int XL_ERROR_READ_CFG_FILE_FAIL = XL_ERROR_FAIL + 18;

 // 寫入cfg文件掉敗
 public const int XL_ERROR_WRITE_CFG_FILE_FAIL = XL_ERROR_FAIL + 19;

 // 沒法持續義務，能夠是不支撐斷點續傳，也有能夠是義務曾經掉敗
 // 經由過程查詢義務狀況，肯定毛病緣由。
 public const int XL_ERROR_CANNOT_CONTINUE_TASK = XL_ERROR_FAIL + 20;

 // 沒法暫停義務，能夠是不支撐斷點續傳，也有能夠是義務曾經掉敗
 // 經由過程查詢義務狀況，肯定毛病緣由。
 public const int XL_ERROR_CANNOT_PAUSE_TASK = XL_ERROR_FAIL + 21;

 // 緩沖區太小
 public const int XL_ERROR_BUFFER_TOO_SMALL = XL_ERROR_FAIL + 22;

 // 挪用XLInitDownloadEngine的線程，在挪用XLUninitDownloadEngine之前曾經停止。
 // 初始化下載引擎線程，在挪用XLUninitDownloadEngine之前，必需堅持履行狀況。
 public const int XL_ERROR_INIT_THREAD_EXIT_TOO_EARLY = XL_ERROR_FAIL + 23;

 [DllImport("XLDownload.dll", EntryPoint = "XLInitDownloadEngine")]
 public static extern bool XLInitDownloadEngine();
 [DllImport("XLDownload.dll", EntryPoint = "XLURLDownloadToFile", CharSet = CharSet.Unicode)]
 public static extern int XLURLDownloadToFile(string pszFileName, string pszUrl, string pszRefUrl, ref Int32 lTaskId);
 [DllImport("XLDownload.dll")]
 public static extern int XLQueryTaskInfo(int lTaskId, ref int plStatus, ref double pullFileSize, ref double pullRecvSize);
 [DllImport("XLDownload.dll")]
 public static extern int XLPauseTask(int lTaskId, ref int lNewTaskId);
 [DllImport("XLDownload.dll")]
 public static extern int XLContinueTask(int lTaskId);
 [DllImport("XLDownload.dll")]
 public static extern int XLContinueTaskFromTdFile(string pszTdFileFullPath, ref int lTaskId);
 [DllImport("XLDownload.dll")]
 public static extern void XLStopTask(int lTaskId);
 [DllImport("XLDownload.dll")]
 public static extern bool XLUninitDownloadEngine();
 [DllImport("XLDownload.dll")]
 public static extern int XLGetErrorMsg(int dwErrorId, string pszBuffer, ref int dwSize);

 static void Main(string[] args)
 {
  if (!XLInitDownloadEngine())
  {
  Console.WriteLine("下載引擎初始化毛病");
  return;
  }

  Int32 lTaskId = 0;
  string filename = "d://xx.exe";
  string url = "http://xmp.down.sandai.net/kankan/XMPSetup_3.8.1.485-www.exe";
  string refurl = "http://xmp.down.sandai.net";
  int dwRet = XLURLDownloadToFile(filename, url, refurl, ref lTaskId);
  if (XL_SUCCESS != dwRet)
  {
  XLUninitDownloadEngine();
  Console.WriteLine("添加新義務掉敗");
  return;
  }
  Console.WriteLine("開端下載");
  do
  {
  Thread.Sleep(1000);
  double pullFileSize = 0;
  double pullRecvSize = 0;
  int lStatus = -1;
  dwRet = XLQueryTaskInfo(lTaskId, ref lStatus, ref pullFileSize, ref pullRecvSize);
  if (XL_SUCCESS == dwRet)
  {
   if ((int)enumTaskStatus.enumTaskStatus_Success == lStatus)
   {
   Console.WriteLine("下載完成");
   break;
   }
   if (0 != pullFileSize)
   {
   double douProcess = (double)pullRecvSize / (double)pullFileSize;
   douProcess *= 100.0;
   Console.WriteLine("下載進度：{0}%", douProcess);
   }
   else
   {
   Console.WriteLine("文件長度為0");
   }

  }
  } while (XL_SUCCESS == dwRet);
  XLStopTask(lTaskId);
  XLUninitDownloadEngine();
 }
 }
}

願望本文實例對年夜家進修C#法式設計能起到必定的自創感化。