by Marcus Schmitt (6 Submissions)
Category: Windows API Call/Explanation
Compatability: Visual Basic 5.0
Difficulty: Intermediate
Date Added: Wed 3rd February 2021
Rating: 
(5 Votes)
Close a window when you know the title of
this window.
Uses the API FindWindow and PostMessage.
VBcodersOption Explicit
Private Declare Function PostMessage Lib "user32" _
Alias "PostMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Declare Function FindWindow Lib "user32" _
Alias "FindWindowA" (ByVal szClass$, ByVal szTitle$) As Long
Private Const WM_CLOSE = &H10
Private Sub Command1_Click()
Dim hWnd, retval As Long
Dim WinTitle As String
WinTitle = "Recycle Bin" '<- Title of Window
hWnd = FindWindow(vbNullString, WinTitle)
retval = PostMessage(hWnd, WM_CLOSE, 0&, 0&)
End Sub