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ftpfindfirstfile (wininet)
 
.
Summary

C# Signature:

[DllImport("wininet.dll", SetLastError = true, CharSet = CharSet.Auto)]
   static extern IntPtr FtpFindFirstFile(IntPtr hConnect,
   string searchFile, out WIN32_FIND_DATA findFileData,
   int flags, IntPtr context);

VB Signature:

Declare Function FtpFindFirstFile Lib "wininet.dll" _
   (ByVal hConnect As IntPtr, ByVal searchFile As String, _
   ByRef findFileData As WIN32_FIND_DATA, ByVal flags As Integer, _
   ByVal context As IntPtr) As IntPtr

User-Defined Types:

WIN32_FIND_DATA

Notes:

None.

Tips & Tricks:

For VB.net FtpFindFirstFile will {or May} return the folder and not a file.

Using

bRet = InternetFindNextFile(hFind, pData)

after FtpFindFirstFile will then return a file. For VAX servers the return string

may contain other information e.g. Date modified. This means you will need to parse

the text to just get the file name. Placeing the InternetFindNextFile in a do loop

will allow you to obtain a list of all the files in the server folder.

Note pData here is the storage defined by WIN32_FIND_DATA. I have placed

the structure I used in this structure information page.

Sample Code:

    Do
        '
        bRet = InternetFindNextFile(hFind, pData)

'

        If Not bRet Then
          Procces the error here and quit
        Else        
        Pos = InStr(pData.cFileName, " ") ' The file name should be at the start of the line
        If Pos > 0 Then
            strItemName = Trim(Left(pData.cFileName, Pos)) ' Get the file name
        End If
        ' Add the name to a list - Could be a list box as below or Text box
        Form1.List_Files.Items.Add(strItemName)
    Loop
    '
    InternetCloseHandle(hFind) ' close the handle.
    End Sub

Alternative Managed API:

Do you know one? Please contribute it!

Documentation

Direct Link: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wininet/wininet/FtpFindFirstFile.asp

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