wodFTPServer ActiveX Control - FileTransferData Method
 FileTransferData Method
      
 

Description

Called during file transfer, allowing you to alter file contents.


Return Type

None  


Syntax

object.FileTransferData Owner, User, FileData()



The FileTransferData Method syntax has these parts:

Part Description
object An expression evaluating to an object of type wodFTPDNotify.
Owner A wodFTPDCom object. Reference to wodFTPServer instance that called this notification method.
User A FtpUser object. Reference to user who is listing directory contents.
FileData() An array of Byte values. Actual data as byte array (SAFEARRAY(unsigned char *) for VC++ users).

Remarks

NOTE: This method is called only if you implemented IwodFTPDNotify interface in your application, and wodFTPD.Notification property has received reference to instance of your implementation.


FileTransferData notification method is called during file transfers, allowing you to alter contents of file currently being uploaded/downloaded. It will fire only if MonitorTransfers property is set to appropriate value other than MonitorNone.

Since FileData is a byte array, file contents can be changed in size and in values - you can supply new byte array to this argument if needed. For example, following code will always destroy all values in the array, and no matter how large files user tries to upload (or download), it will always end up with zero sized file:

Private Sub IwodFTPDNotify_FileTransferData(ByVal Owner As wodFTPDComLib.IwodFTPDCom, ByVal User As wodFTPDComLib.IFtpUser, FileData() As Byte)
      Dim b() As Byte
      DirData = b
End Sub
 

You should note, however, that when user uploads file, it will be created - no matter if you change the contents or not. To delete such files, you can use TransferComplete notification method. Even more, if you intend to alter contents of file transfers, or even to disable writing them to specified file, you can use UploadFile and DownloadFile notifications (and their ResolvedPath argument) to redirect wodFTPServer to some temporary file.