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recognizing a file drop from Groupwise

I want the users to be able to open a Groupwise email and drag a file attachment on to a list box in my winforms application. The application recognizes what has happened and takes possession of the file, or a copy of it, for further processing.

How can this be done?

Thanks.

Scott Kunau

I just opened a GroupWise message with an .xls file attachment and dragged it to my desktop. Then I double-clicked on it and it opened just fine.

I'm not sure what you mean by "list box in my winforms application". Perhaps you have a screen capture of the list box?

Scott

codefinger

ASKER

By "list box in my winforms application", I mean the application I am coding.

According to my Googling, the code attached below MAY do what I need, but it is in VC.Net where I have no skill. If some one could re-write it in VB.NET, and it works, that will be my solution.

private void control_DragDrop(object sender, DragEventArgs e) 
{ 
   string strFilename = null; 
 
   //something about the act of reading this stream creates the file in your temp folder(?) 
   using (MemoryStream stream = (MemoryStream)e.Data.GetData("attachment format", true)) 
   { 
       byte[] b = new byte[stream.Length]; 
       stream.Read(b, 0, (int)stream.Length); 
       strFilename = Encoding.Unicode.GetString(b); 
       //The path/filename is at position 10. 
       strFilename = strFilename.Substring(10, strFilename.IndexOf('\0', 10) - 10); 
       stream.Close(); 
   } 
 
   if (strFilename != null && File.Exists(strFilename)) 
   { 
      //From here on out, you're just reading another file from the disk... 
      using(FileStream fileIn = File.Open(strFilename, FileMode.Open)) 
      { 
          //Do your thing 
          fileIn.Close(); 
      } 
   } 
 
   File.Delete(strFilename); 
}

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codefinger

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