In a module
VB Code:
Private Declare Function EnumWindows Lib "user32" (ByVal lpEnumFunc As Long, ByVal lParam As Long) As Long
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 IsWindowVisible Lib "user32" (ByVal hwnd As Long) As Long
Private Const WM_GETTEXT = &HD
Private aCaptions() As String
Private lCount As Long
Public Function GetAllCaptions() As Variant
lCount = 0
Call EnumWindows(AddressOf EnumWindowsProc, 0&)
If lCount Then ReDim Preserve aCaptions(lCount - 1)
GetAllCaptions = IIf(lCount, aCaptions, Array())
End Function
Private Function EnumWindowsProc(ByVal hwnd As Long, ByVal lParam As Long) As Long
Dim sBuffer As String * 260
If IsWindowVisible(hwnd) Then
ReDim Preserve aCaptions(lCount)
aCaptions(lCount) = Left(sBuffer, SendMessage(hwnd, WM_GETTEXT, 260, ByVal sBuffer))
If Len(Trim(aCaptions(lCount))) Then lCount = lCount + 1
End If
EnumWindowsProc = hwnd
End Function
In a form (with listbox - List1)
VB Code:
Private Sub Command1_Click()
Dim vCaps As Variant
Dim lIndex As Long
vCaps = GetAllCaptions()
List1.Clear
For lIndex = 0 To UBound(vCaps)
List1.AddItem vCaps(lIndex)
Next
End Sub