windows mobile 6.3 C# VS2008 FTP的使用

xinjiang

　　最近在windows mobile 平台上开发，因为国内物流行业多数现在使用的PDA还是这样老掉牙的wm操作系统，没办法。别说什么已经淘汰的塞班、这么火的安卓、IOS。谁还用windows mobile开发。 用的是VS2008 基于.net compact framework，没办法，我只能说是阉割版的.net框架，好多东西都没有了，比如说groupbox控件，比如说FTP这东西，比如说listview控件的自动调整列宽的属性、等等，都被阉割掉了。 如果说在PC平台上，做个FTP那不是很轻松的事情，大家都会使用FtpWebRequest这个类，但是用C#在windowsmobile上开发FTP就没那么简单了。但是能不能实现呢？我告诉你，100%可以实现，放心去做吧。废话少说，开始吧。必须使用wininet.dll库，这是毫无疑问的。
　　1、因为下面使用相关API的需要，所以添加以下结构体：// service types for InternetOpen()public enum ACCESS_TYPE_FOR_INTERNETOPEN{INTERNET_OPEN_TYPE_PRECONFIG=0, // use registry configurationINTERNET_OPEN_TYPE_DIRECT=1, // direct to netINTERNET_OPEN_TYPE_PROXY=3, // via named proxyINTERNET_OPEN_TYPE_PRECONFIG_WITH_NO_AUTOPROXY=4 // prevent using java/script/INS};// service types for InternetConnect()public enum ACCESS_TYPE_FOR_INTERNETCONNECT{INTERNET_SERVICE_FTP=1,INTERNET_SERVICE_GOPHER=2,INTERNET_SERVICE_HTTP=3};// protocol-specific flags.public enum PROTOCOL_SPECIFIC_FLAG{INTERNET_FLAG_PASSIVE=0x08000000 // used for FTP connections};// These are the generic rights.public enum ACCESS_TYPE_FOR_FILE: uint{GENERIC_READ=0x80000000,GENERIC_WRITE=0x40000000,GENERIC_EXECUTE=0x20000000,GENERIC_ALL=0x10000000};// FTP manifestspublic enum ACCESS_TYPE_FOR_TRANSFER{FTP_TRANSFER_TYPE_UNKNOWN=0x00000000,FTP_TRANSFER_TYPE_ASCII=0x00000001,FTP_TRANSFER_TYPE_BINARY=0x00000002};public enum FILE_ATTRIBUTE:uint{FILE_ATTRIBUTE_READONLY=0x00000001,FILE_ATTRIBUTE_HIDDEN= 0x00000002,FILE_ATTRIBUTE_SYSTEM=0x00000004,FILE_ATTRIBUTE_DIRECTORY=0x00000010,FILE_ATTRIBUTE_ARCHIVE=0x00000020,FILE_ATTRIBUTE_INROM=0x00000040,FILE_ATTRIBUTE_NORMAL=0x00000080,FILE_ATTRIBUTE_TEMPORARY=0x00000100,FILE_ATTRIBUTE_SPARSE_FILE=0x00000200,MODULE_ATTR_NOT_TRUSTED=0x00000200,FILE_ATTRIBUTE_REPARSE_POINT=0x00000400,MODULE_ATTR_NODEBUG=0x00000400,FILE_ATTRIBUTE_COMPRESSED0x00000800,FILE_ATTRIBUTE_OFFLINE0x00001000,FILE_ATTRIBUTE_ROMSTATICREF=0x00001000,FILE_ATTRIBUTE_NOT_CONTENT_INDEXED=0x00002000,FILE_ATTRIBUTE_ROMMODULE=0x00002000,FILE_ATTRIBUTE_ENCRYPTED=0x00004000}; 2、加入以下的接口引用  //wininet for FTP[DllImport("wininet.dll",EntryPoint="InternetOpen")]extern static IntPtr InternetOpen(string lpszAgent, UInt32 dwAccessType, string lpszProxyName, string lpszProxyBypass, UInt32 dwFlags);[DllImport("wininet.dll", EntryPoint = "InternetConnect")]extern static IntPtr InternetConnect(IntPtr hInternet, string lpszServerName, UInt16 nServerPort, string lpszUserName, string lpszPassword, UInt32 dwService, UInt32 dwFlags, UInt32 dwContext);[DllImport("wininet.dll", EntryPoint = "InternetReadFile")]extern static bool InternetReadFile(IntPtr hFile,byte[] lpBuffer,int dwNumberOfBytesToRead,out int lpdwNumberOfBytesRead);[DllImport("wininet.dll", EntryPoint = "InternetWriteFile")]extern static bool InternetWriteFile(IntPtr hFile,IntPtr lpBuffer,UInt32 dwNumberOfBytesToWrite,IntPtr lpdwNumberOfBytesWritten);[DllImport("wininet.dll", EntryPoint = "InternetCloseHandle")]extern static bool InternetCloseHandle(IntPtr hInternet);[DllImport("wininet.dll", EntryPoint = "FtpOpenFile")]extern static IntPtr FtpOpenFile(IntPtr hConnect, string lpszFileName, ACCESS_TYPE_FOR_FILE dwAccess, ACCESS_TYPE_FOR_TRANSFER dwFlags, UInt32 dwContext);[DllImport("wininet.dll", EntryPoint = "FtpGetFileSize")]extern static UInt32 FtpGetFileSize(IntPtr hFile,IntPtr lpdwFileSizeHigh);[DllImport("wininet.dll", EntryPoint = "FtpGetFile")]extern static bool FtpGetFile(IntPtr hConnect, string lpszRemoteFile, string lpszNewFile, bool fFailIfExists, UInt32 dwFlagsAndAttributes, UInt32 dwFlags, UInt32 dwContext);[DllImport("wininet.dll", EntryPoint = "FtpPutFile")]extern static bool FtpPutFile(IntPtr hConnect,string lpszLocalFile,string lpszNewRemoteFile,UInt32 dwFlags,UInt32 dwContext);[DllImport("wininet.dll", EntryPoint = "FtpGetCurrentDirectory")]extern static bool FtpGetCurrentDirectory(IntPtr hConnect,string lpszCurrentDirectory,IntPtr lpdwCurrentDirectory);[DllImport("wininet.dll", EntryPoint = "FtpSetCurrentDirectory")]extern static bool FtpSetCurrentDirectory(IntPtr hConnect,string lpszDirectory);[DllImport("wininet.dll", EntryPoint = "FtpCreateDirectory")]extern static bool FtpCreateDirectory(IntPtr hConnect,string lpszDirectory); 3、具体怎么使用这些接口，大家可以去看MSDN了，我不在这里赘述了。
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