by Ark (13 Submissions)
Category: Windows API Call/Explanation
Compatability: Visual Basic 3.0
Difficulty: Intermediate
Date Added: Wed 3rd February 2021
Rating: 
(4 Votes)
Find window using full or part of it's caption. Allow wild characters (*,?,[]). For example, using this string :"*Mi??OSoFt In[s-u]ernet*" you can find Microsoft Internet Explorer window.
Inputs
Full or part of window's caption. Wild characters accepted.
Code Returns
Handle of window if find, zero otherwise.
VBcoders'---Bas module code------
Private Declare Function EnumWindows& Lib "user32" (ByVal lpEnumFunc As Long, ByVal lParam 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 IsWindowVisible& Lib "user32" (ByVal hwnd As Long)
Private Declare Function GetParent& Lib "user32" (ByVal hwnd As Long)
Dim sPattern As String, hFind As Long
Function EnumWinProc(ByVal hwnd As Long, ByVal lParam As Long) As Long
Dim k As Long, sName As String
If IsWindowVisible(hwnd) And GetParent(hwnd) = 0 Then
sName = Space$(128)
k = GetWindowText(hwnd, sName, 128)
If k > 0 Then
sName = Left$(sName, k)
If lParam = 0 Then sName = UCase(sName)
If sName Like sPattern Then
hFind = hwnd
EnumWinProc = 0
Exit Function
End If
End If
End If
EnumWinProc = 1
End Function
Public Function FindWindowWild(sWild As String, Optional bMatchCase As Boolean = True) As Long
sPattern = sWild
If Not bMatchCase Then sPattern = UCase(sPattern)
EnumWindows AddressOf EnumWinProc, bMatchCase
FindWindowWild = hFind
End Function
'----Using (Form code)----
Private Sub Command1_Click()
Debug.Print FindWindowWild("*Mi??OSoFt In[s-u]ernet*", False)
End Sub
