Internet Transfer Control in VB6

Using the OpenURL Method to Retrieve an HTML Page

Example 1: VB6

 Private Sub cmdGo_Click()
   inet.Protocol = icHTTP
   inet.URL = txtAddress.Text
   txtOut.Text = inet.OpenURL
 
 End Sub
 
 Private Sub Form_Load()
   txtAddress.Text = "http://wiki.robotz.com"
 End Sub

Example 2: VBA, Uses the internet transfer control with HTTP to create an HTML page.

 Dim objInet as Inet
 
 Private Sub Form_Load()
    ' Set a reference to the internet transfer control.
    Set objInet = Me!axInetTran.Object
 End Sub
 
 Private Sub cmdWriteFile_Click()
    Dim b() as Byte
 
    ' Set the internet transfer control protocol and URL.
    objInet.Protocol = icHTTP
    objInet.URL = "HTTP://www.microsoft.com"
 
    ' Retrieve the HTML data into a byte array.
    b() = objInet.OpenURL(objInet.URL,icByteArray)
 
    ' Create a local file from the retrieved data.
    Open "C:\Homepage.htm" For Binary Access Write As #1
    Put #1, , b()
    Close #1
 
    MsgBox "Done"
 End Sub
 
 Private Sub cmdGetHeader_Click()
    ' Set the internet transfer control protocol and URL.
    objInet.Protocol = icHTTP
    objInet.URL = "HTTP://www.microsoft.com"
 
    ' Open the HTML and display the header information.
    objInet.openURL objInet.URL, icByteArray
    MsgBox objInet.GetHeader
 End Sub

Example 3: VBA, Retrieve a File from an FTP Site

 Private Sub Form_Load()
    ' Set a reference to the internet transfer control.
    Set objFTP = Me!axFTP.Object
 End Sub
 
 Private Sub cmdGetFile_Click()
    Dim strSite As String
    Dim strFile As String
    strSite = Me!txtFTPSite
    strFile = Me!txtFileName
    objFTP.Protocol = icFTP
    objFTP.URL = strSite
    objFTP.Execute strSite, "Get " & strFile & " C:\" & strFile
 End Sub
 
 Private Sub axFTP_StateChanged(ByVal State As Integer)
    ' Display a message when the transfer is finished.
    If State = 12 Then Msgbox "File Transferred"
 End Sub

 

FTP Files Using the Internet Transfer Control

You can easily FTP files between a client and host computer.

Port	Service
21	File Transfer Protocol (FTP)
25	Simple Mail Transfer Protocol (SMTP)
79	Finger
80	Hypertext Transfer Protocol (HTTP)
443	Secure Hypertext Transfer Protocol (HTTPS)
666	DOOM multiplayer game port