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Tip of the Day
Language: VB4/32,VB5,VB6
Expertise: Intermediate
Jan 25, 2001



Building the Right Environment to Support AI, Machine Learning and Deep Learning

CloseDosWindow - Close a Ms-Dos console window

Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal _
    lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal _
    hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, _
    lParam As Any) As Long
Const WM_CLOSE = &H10

' close a MS-DOS window
' if Caption is omitted, it randomly closes one
' of the opened Dos windows

Sub CloseDosWindow(Optional Caption As Variant)
    Dim hWnd As Long
    ' if argument is omitted, don't care for window caption
    If IsMissing(Caption) Then Caption = vbNullString
    ' find the window
    hWnd = FindWindow("ConsoleWindowClass", Caption)
    ' close it by sending it a WM_CLOSE message
    If hWnd Then
        SendMessage hWnd, WM_CLOSE, 0, ByVal 0
    End If

End Sub
Francesco Balena
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