by Karthikeyan (187 Submissions)
Category: Windows API Call/Explanation
Compatability: Visual Basic 5.0
Difficulty: Unknown Difficulty
Originally Published: Tue 23rd January 2001
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
'Get a list of Open Window Names using GetDesktopWindow,GetWindow and GetWindowText API
API Declarations
Private Declare Function GetWindow Lib "user32" (ByVal hwnd As Long, ByVal wCmd As Long) As Long
Private Declare Function GetWindowText Lib "user32" Alias "GetWindowTextA" (ByVal hwnd As Long, ByVal lpString As String, ByVal cch As Long) As Long
Private Const GW_CHILD = 5
Private Const GW_HWNDNEXT = 2
VBcoders
'http://www.geocities.com/marskarthik
'http://marskarthik.virtualave.net
'Email: [email protected]
Private Sub Form_Load()
Dim dhwnd As Long, hwnd As Long, wc As Long, rval As Long
Dim wname As String, index As Long
dhwnd = GetDesktopWindow()
hwnd = GetWindow(dhwnd, GW_CHILD)
wc = 1: index = 0
Do While hwnd <> 0
wname = Space(260)
rval = GetWindowText(hwnd, wname, 260)
wname = Left(wname, InStr(wname, Chr(0)) - 1)
If Len(wname) Then
'MsgBox wname
List1.AddItem wname, index
index = index + 1
End If
hwnd = GetWindow(hwnd, GW_HWNDNEXT)
Loop
Label1.Caption = "Total number of Open Windows = " & index + 1
End Sub
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