C#]Use wininet.dll to realize ftp function-Part One :function list《转》
前段时间研究FTP，利用FTPClient在进行FTP文件传输时如果FTP站点不支持PASV模式，而内网对PORT模式也有限制的时候，多次测试未能成功，转换思路，考虑用WIN API。成功地实现了用C#对WININET.DLL的平台调用，下面将里面用到的函数列表如下：//下面两个是在实现FTP过程中用到的两个数据结构
public class WIN32_FIND_DATA
{
public UInt32 dwFileAttributes=0;
public FILETIME ftCreationTme;
public FILETIME ftLastAccessTime;
public FILETIME ftLastWriteTime;
public UInt32 nFileSizeHigh=0;
public UInt32 nFileSizeLow=0;
public UInt32 dwReserved0=0;
public UInt32 dwReserved1=0;
public string cFileName=null;
public string cAlternateFileName=null;
};
public class FILETIME
{
public int dwLowDateTime=0;
public int dwHighDateTime=0;
};
//以下是对WININET.DLL中的重要函数的托管转换
public static extern bool InternetGetLastResponseInfo(ref uint ulError,
string strBuffer, ref uint ulBufferLength);
public static extern IntPtr InternetOpen(string strAppName, ulong
ulAccessType, string strProxy, string strProxyBypass, ulong ulFlags);
public static extern bool InternetFindNextFile(IntPtr hFind, WIN32_FIND_DATA
dirData);
public static extern IntPtr InternetConnect(IntPtr ulSession, string
strServer, uint ulPort, string strUser, string strPassword, uint ulService, uint ulFlags,
uint ulContext);
public static extern bool InternetGetConnectedState(ref uint ulFlags, uint
ulReserved);
public static extern bool FtpSetCurrentDirectory(IntPtr ulSession, string
strPath);
public static extern IntPtr FtpFindFirstFile(IntPtr ulSession, string strPath
, WIN32_FIND_DATA dirData, ulong ulFlags, ulong ulContext);
public static extern bool FtpGetFile(IntPtr ulSession, string strRemoteFile,
string strLocalFile, bool bolFailIfExist, ulong ulFlags, ulong ulInetFals, ulong
ulContext);
public static extern bool FtpPutFile(IntPtr ulSession, string strLocalFile,
string strRemoteFile, ulong ulFlags, ulong ulContext);
public static extern bool FtpDeleteFile(IntPtr ulSession, string strFileName);
public static extern bool InternetCloseHandle(IntPtr ulSession);
在WININET.DLL中还有很多其他功能的函数，详细内容请看：
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wininet/wininet/wininet_reference.asp
本文来自CSDN博客，转载请标明出处：http://blog.iyunv.com/wacle/archive/2004/09/22/113599.aspx
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