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Private Declare Function FindWindow Lib "user32.dll" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Function PostMessage Lib "user32.dll" Alias "PostMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Private Const WM_QUIT As Long = &H12
Private Sub Command1_Click()
Dim handle As Long
handle = FindWindow("notepad", vbNullString)
If handle Then
PostMessage handle, WM_QUIT, 0&, 0&
End If
End Sub
Private Sub Form_Load()
Shell "notepad", vbNormalFocus
End Sub