Hello, I know that the Interop object has  a function named Call wich allows us to call functions from external dll's. I want to call the Shell_NotifyIcon function wich is used to create an icon on the systray. The thing is that I don't know exactly how to invoke the fuction since it is called:

Shell_NotifyIcon(NIM_ADD,&niData);

where NIM_ADD is the message &H0
and niData is a variable of structure NOTIFYICONDATA defined as follows:

Type NOTIFYICONDATA
   cbSize As Long
   hWnd As Long
   uID As Long
   uFlags As Long
   uCallbackMessage As Long
   hIcon As Long
   szTip As String * 128
   dwState As Long
   dwStateMask As Long
   szInfo As String * 256
   uTimeoutAndVersion As Long
   szInfoTitle As String * 64
   dwInfoFlags As Long
   guidItem As GUID
End Type

Hope someone can help,
Thanks in advance.

I can't guarantee how correct this is going to be :

http://mattyg.ca/geshi/shell_notifyicon.php

Thanks a lot!

That example really helped a lot and i got it to work with some minor modifications, the thing is that when i put the mouse over the icon on the tray it dissapears. Any idea why?

Thanks in advance.