by Varun Godbole (15 Submissions)
Category: Windows API Call/Explanation
Compatability: VB 6.0
Difficulty: Unknown Difficulty
Originally Published: Sun 22nd April 2007
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
Get a window's title text
API Declarations
Dim blnChoose As Boolean
Private Declare Function SetCapture Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function ReleaseCapture Lib "user32" () As Long
Private Declare Function WindowFromPoint Lib "user32" (ByVal xPoint As Long, ByVal yPoint 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 Declare Function ClientToScreen Lib "user32" (ByVal hwnd As Long, lpPoint As POINTAPI) As Long
'Put this in a module/////////////////////////////////////////////////////////
Type POINTAPI
x As Long
y As Long
End Type
//////////////////////////////////////////////////////////////////////////////
VBcoders
blnChoose = True
intRetVal = SetCapture(hwnd)
End Sub
Private Sub Form_Load()
blnChoose = False
End Sub
Private Sub Form_MouseDown(Button As Integer, Shift As Integer, x As Single, y As Single)
Dim window As Long
Dim buffer As String * 1024
Dim ptPoint As POINTAPI
If blnChoose Then
ptPoint.x = x
ptPoint.y = y
retval = ClientToScreen(hwnd, ptPoint)
window = WindowFromPoint(ptPoint.x, ptPoint.y)
lngRetVal = GetWindowText(window, buffer, 1024)
Text1.Text = buffer
End If
End Sub
