net send...

[Owen Holiday]

Does anyonw know if there is any way to create a program that can detect when the "net send" function is used on the WinNT network, so that when the program is running, it can detect if there is a message is sent to that machine.

Any suggestions at all would be greatly appreciated...

Owen.

[Mark Sreeves]

Right then.
The pop-up window has the title "Messenger Service" so you need to get titles of all the running apps and then loop through them to find it

I've just put a Msgbox here when it is found.


paste this into a module and call it from a timer control or a timer() loop

Option Explicit
'/////////////////////////stuff for checking other windows///////////////////////////////////////
Public Declare Function GetWindowText Lib "user32.dll" Alias "GetWindowTextA" (ByVal hwnd As Long, ByVal lpString As String, ByVal nMaxCount As Long) As Long
Private Declare Function GetWindowTextLength Lib "user32.dll" Alias "GetWindowTextLengthA" (ByVal hwnd As Long) As Long
Private Declare Function EnumWindows Lib "user32" (ByVal lpEnumFunc As Long, ByVal LParam As Long) As Long
Private handles() As Long

Public Counter As Long


Private Function EnumWindowsProc(ByVal hwnd As Long, ByVal LParam As Long) As Long
    Dim sCaption As String * 255
    ReDim Preserve handles(Counter)
    handles(Counter) = hwnd
    Counter = Counter + 1
    EnumWindowsProc = hwnd
End Function
Public Sub GetWindows()
Dim textlen As Long  ' receives length of text of the window
Dim wintext As String  ' receives the text of the window
Dim slength As Long  ' receives the length of the returned string
Dim n As Long
Dim i As Integer
    
    ReDim handles(0)
    Counter = 0
    Call EnumWindows(AddressOf EnumWindowsProc, 0&)
   
  
    For n = 0 To UBound(handles())
      ' Find out how many characters are in the window's text.
      ' Add 1 to compensate for the terminating null.
      textlen = GetWindowTextLength(handles(n)) + 1
      ' Make sufficient room in the buffer.
      wintext = Space(textlen)
      ' Retrieve the text of window Form1.
      slength = GetWindowText(handles(n), wintext, textlen)
      
      
      'Debug.Print wintext
      ' Remove the empty space from the string, if any.
      wintext = Left(wintext, slength)
      If wintext <> "" Then
       Debug.Print wintext
      End If
      ' Display the result.
      If Trim(wintext) = "Messenger Service" Then
       '
        MsgBox "message recieved"
      End If
    Next n
End Sub
   
'////////////////////////////////////////////////////////////////