Kod:
Private Declare Function SendMessage Lib "user32" Alias _
"SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, _
ByVal wParam As Long, lParam As Any) As Long
Private Declare Function GetWindow Lib "user32" (ByVal hwnd _
As Long, ByVal wCmd As Long) As Long
Private Declare Function GetClassName Lib "user32" Alias _
"GetClassNameA" (ByVal hwnd As Long, ByVal lpClassName _
As String, ByVal nMaxCount As Long) As Long
Private Const GW_CHILD = 5
Private Const GW_HWNDNEXT = 2
Private Const WM_GETTEXT = &HD
Private Const WM_GETTEXTLENGTH = &HE
' Return information about this window.
Public Function WindowInfo(window_hwnd As Long) As String
Dim txt As String
Dim buf As String
Dim buflen As Long
Dim child_hwnd As Long
Dim children As Collection
Dim i As Integer
' Get the class name.
buflen = 256
buf = Space$(buflen - 1)
buflen = GetClassName(window_hwnd, buf, buflen)
buf = Left$(buf, buflen)
txt = "Class: " & buf & vbCrLf
' hWnd.
txt = txt & " hWnd: " & _
Format$(window_hwnd) & vbCrLf
' Associated text.
txt = txt & " Text: [" & _
WindowText(window_hwnd) & "]" & vbCrLf
' Make a list of the child windows.
Set children = New Collection
child_hwnd = GetWindow(window_hwnd, GW_CHILD)
Do While child_hwnd <> 0
children.Add child_hwnd
child_hwnd = GetWindow(child_hwnd, GW_HWNDNEXT)
Loop
' Get information on the child windows.
For i = 1 To children.Count
txt = txt & WindowInfo(children(i))
Next i
WindowInfo = txt
End Function
' Return the text associated with the window.
Public Function WindowText(window_hwnd As Long) As String
Dim txtlen As Long
Dim txt As String
WindowText = ""
If window_hwnd = 0 Then Exit Function
txtlen = SendMessage(window_hwnd, WM_GETTEXTLENGTH, 0, _
0)
If txtlen = 0 Then Exit Function
txtlen = txtlen + 1
txt = Space$(txtlen)
txtlen = SendMessage(window_hwnd, WM_GETTEXT, txtlen, _
ByVal txt)
WindowText = Left$(txt, txtlen)
End Function