Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
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Winsock: retrieving directory listing from an FTP server using passive data connection (FTP, port 21)
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Enumerating raw input devices attached to the system (keyboard, mouse, human interface device)
Disk in drive A:
How to display the Properties dialog box for a file (ShellExecuteEx)
Enumerating network resources
Detecting changes in connections to removable drives (VFP9)
How to download a file from the FTP server using FtpGetFile
Using EnumPrinters function to enumerate locally installed printers
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Using Font and Text functions
How to play AVI file on the _screen
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Creating irregularly shaped FoxPro form using transparency color key
How to put a horizontal text scrolling on the form (a news line)
Reading list of folders and files on FTP server

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Before you begin:
Programming File Transfer Protocol in Visual FoxPro

This code stores in a cursor list of all files and directories found on FTP server. Note that for some FTPs this can be a time consuming process.

Substitute ??? question marks in the following code with valid FTP server host, user and password values.

Resulting cursor can be displayed in a TreeView Control (this code is not included):




 
using System;
using System.Text;
using System.Net;
using System.IO;
 
namespace ftplist
{
    class Program
    {
        static void Main(string[] args)
        {
            //substitute with valid ones...
            string ftpurl = "ftp://myftpserver.com";
            string username = "user";
            string password = "password";
 
            Console.WriteLine("Short list from: {0}", ftpurl);
            FTPShortList(ftpurl, username, password);
 
            Console.WriteLine("");
            Console.WriteLine("Detailed list from: {0}", ftpurl);
            FTPDetailedList(ftpurl, username, password);
 
            Console.WriteLine("Press any key to exit...\n");
            Console.ReadKey();
        }
        #region private
        private static void FTPShortList(string ftpurl, 
            string username, string password)
        {
            FtpWebRequest request = (FtpWebRequest)
                WebRequest.Create(ftpurl);
 
            request.Method = WebRequestMethods.Ftp.ListDirectory;
            request.Credentials = new NetworkCredential(username, 
                password);
 
            try
            {
                FtpWebResponse response = (FtpWebResponse)
                    request.GetResponse();
 
                Stream responseStream = response.GetResponseStream();
                StreamReader reader = new StreamReader(responseStream);
                Console.WriteLine(reader.ReadToEnd());
 
                Console.WriteLine("Directory list complete " +
                    "with status: {0}", response.StatusDescription);
 
                reader.Close();
                response.Close();
            }
            catch (WebException e)
            {
                Console.WriteLine(e.ToString());
            }
        }
 
        private static void FTPDetailedList(string ftpurl, 
            string username, string password)
        {
            FtpWebRequest request = (FtpWebRequest)
                WebRequest.Create(ftpurl);
 
            request.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
            request.Credentials = new NetworkCredential(username, 
                password);
 
            try
            {
                FtpWebResponse response = (FtpWebResponse)
                    request.GetResponse();
 
                Stream responseStream = response.GetResponseStream();
                StreamReader reader = new StreamReader(responseStream);
                Console.WriteLine(reader.ReadToEnd());
 
                Console.WriteLine("Directory list complete " +
                    "with status: {0}", response.StatusDescription);
 
                reader.Close();
                response.Close();
            }
            catch (WebException e)
            {
                Console.WriteLine(e.ToString());
            }
        }
        #endregion
    }
}
 
 

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2957 bytes  
Created: 2002-11-12 21:58:49  
Modified: 2011-12-10 09:20:22  
Visits in 7 days: 148  
Listed functions:
FtpFindFirstFile
FtpGetCurrentDirectory
FtpSetCurrentDirectory
InternetCloseHandle
InternetConnect
InternetFindNextFile
InternetOpen
Printer friendly API declarations
My comment:
Two pairs of functions ( FtpFindFirstFile, InternetFindNextFile ) and ( FindFirstFile, FindNextFile ) work similarly, except one important difference.

Between the FtpFindFirstFile and the InternetCloseHandle calls, the application cannot make another FtpFindFirstFile call for a given FTP session handle. If nevertheless such call is made, the function fails with ERROR_FTP_TRANSFER_IN_PROGRESS error.

The handle returned by the FtpFindFirstFile must be closed with the InternetCloseHandle function when no longer needed.

The FindFirstFile has no such limit; it can have muliple handles opened at the same time.

#kwd: sln_ftp.
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