(Visual Basic 6.0) FTP Download Binary File to a Stream

Demonstrates how to FTP download a binary file to a Chilkat stream.

Note: This example requires Chilkat v9.5.0.67 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

' This example assumes the Chilkat FTP2 API to have been previously unlocked.
' See FTP2 Unlock Sample for sample code.

Dim ftp As New ChilkatFtp2

ftp.Hostname = "www.my-ftp-server.com"
ftp.Username = "mFtpLogin"
ftp.Password = "myFtpPassword"
ftp.AuthTls = 1
ftp.Passive = 1

' Connect and login to the FTP server using TLS.
Dim success As Long
success = ftp.Connect()
If (success <> 1) Then
    Debug.Print ftp.LastErrorText
    Exit Sub
End If

' We'll read the incoming data chunk-by-chunk and write to an output file.
Dim fac As New CkFileAccess
success = fac.OpenForWrite("qa_output/penguins2.jpg")
If (success <> 1) Then
    Debug.Print fac.LastErrorText
    Exit Sub
End If

Dim streamObj As New ChilkatStream

' Create a task to do the FTP download.
Dim t As ChilkatTask
Set t = ftp.GetFileToStreamAsync("penguins2.jpg",streamObj)
If (ftp.LastMethodSuccess <> 1) Then
    Debug.Print ftp.LastErrorText
    Exit Sub
End If

' Start the task in a background thread.
success = t.Run()

Dim bd As New ChilkatBinData
Do While streamObj.EndOfStream <> 1
    ' Get the next chunk of JPG bytes.
    success = streamObj.ReadBd(bd)
    ' Do something with it..
    ' In this simple example, we'll just write to the file.
    success = fac.FileWriteBd(bd,0,0)
    ' Clear for the next read.
    success = bd.Clear()
Loop

fac.FileClose 

Debug.Print "Success."