Private Const SWP_HIDEWINDOW As Long = &H80
Private Const SWP_SHOWWINDOW As Long = &H40
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, ByVal hWndInsertAfter As Long, ByVal x As Long, ByVal y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long
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Sub TaskBarShowHide(ByVal bShow As Boolean)
Dim lRet As Long
lRet = FindWindow("Shell_traywnd", vbNullString)
If lRet Then Call SetWindowPos(lRet, 0&, 0&, 0&, 0&, 0&, IIf(bShow, SWP_SHOWWINDOW, SWP_HIDEWINDOW))
End Sub