FtpCommand的用法

[hqylfy]

哪位能详细的解释一下FtpCommand的用法？

[hqylfy]

我希望调用WinInet的FtpCommand函数，老是返回false
代码如下：

char Comm[50]="TYPE A \r\n";
bool CommOK=FtpCommand(Inet,250,
FTP_TRANSFER_TYPE_ASCII,
&Comm[0],
255,NULL);

我想知道FtpCommand中各个参数的含义

[warton]

执行ftp协议规定的相关命令吧

void __fastcall TForm1::Button1Click(TObject *Sender)
{
AnsiString AnID, APass;
if (InputQuery("Authentication needed", "Enter User ID", AnID))
if (InputQuery("Authentication needed", "Enter Password", APass))
{
NMFTP1->DoCommand("USER "+AnID);
NMFTP1->DoCommand("PASS "+APass);
}
}

[warton]

调用GetLastError（）看看是什么错误？
最后一个参数好像设置不对

FtpCommand
Sends commands directly to an FTP server.

BOOL FtpCommand(
HINTERNET hConnect,
BOOL fExpectResponse,
DWORD dwFlags,
LPCTSTR lpszCommand,
DWORD_PTR dwContext,
HINTERNET* phFtpCommand
);

Parameters
hConnect
[in] Handle returned from a call to InternetConnect.
fExpectResponse
[in] Indicates whether or not the application expects a response from the FTP server. This must be set to TRUE if a response is expected, or FALSE otherwise.
dwFlags
[in] Controls this function. This parameter can be set to one of the following values.Value Meaning
FTP_TRANSFER_TYPE_ASCII Transfers the file using FTP's ASCII (Type A) transfer method. Control and formatting information is converted to local equivalents.
FTP_TRANSFER_TYPE_BINARY Transfers the file using FTP's Image (Type I) transfer method. The file is transferred exactly as it exists with no changes. This is the default transfer method.

lpszCommand
[in] Pointer to a string that contains the command to send to the FTP server.
dwContext
[in] Pointer to a variable that contains an application-defined value that is used to identify the application context in callbacks.
phFtpCommand
[out] Pointer to a handle that will be created if a valid data socket is opened. The fExpectResponse parameter must be set to TRUE for phFtpCommand to be filled.

[hqylfy]

谢谢！