Condividi tramite


CInternetSession::GetFtpConnection

Call this member function to establish an FTP connection and get a pointer to a CFtpConnection object.

CFtpConnection* GetFtpConnection(
   LPCTSTR pstrServer,
   LPCTSTR pstrUserName = NULL,
     LPCTSTR pstrPassword = NULL,
   INTERNET_PORT nPort = INTERNET_INVALID_PORT_NUMBER,
   BOOL bPassive = FALSE 
);

Parameters

  • pstrServer
    A pointer to a string containing the FTP server name.

  • pstrUserName
    Pointer to a null-terminated string that specifies the name of the user to log in. If NULL, the default is anonymous.

  • pstrPassword
    A pointer to a null-terminated string that specifies the password to use to log in. If both pstrPassword and pstrUserName are NULL, the default anonymous password is the user's email name. If pstrPassword is NULL (or an empty string) but pstrUserName is not NULL, a blank password is used. The following table describes the behavior for the four possible settings of pstrUserName and pstrPassword:

    pstrUserName

    pstrPassword

    Username sent to FTP server

    Password sent to FTP server

    NULL or " "

    NULL or " "

    "anonymous"

    User's email name

    Non-NULL String

    NULL or " "

    pstrUserName

    " "

    NULL Non-NULL String

    ERROR

    ERROR

     

    Non-NULL String

    Non-NULL String

    pstrUserName

    pstrPassword

  • nPort
    A number that identifies the TCP/IP port to use on the server.

  • bPassive
    Specifies passive or active mode for this FTP session. If set to TRUE, it sets the Win32 API dwFlag to INTERNET_FLAG_PASSIVE.

Return Value

A pointer to a CFtpConnection object. If the call fails, determine the cause of the failure by examining the thrown CInternetException object.

Remarks

GetFtpConnection connects to an FTP server, and creates and returns a pointer to a CFTPConnection object. It does not perform any specific operation on the server. If you intend to read or write to files, for example, you must perform those operations as separate steps. See the classes CFtpConnection and CFtpFileFind for information about searching for files, opening files, and reading or writing to files. See the article Internet Programming with WinInet for steps in performing common FTP connection tasks.

Exceptions

This method can throw exceptions of type CInternetException*.

Example

See the example for CFtpFileFind.

Requirements

Header: afxinet.h

See Also

Concepts

CInternetSession Class

CInternetSession Members

Hierarchy Chart

CFtpConnection Class

CInternetSession::GetGopherConnection

CInternetSession::GetHttpConnection

CInternetSession::OpenURL