Déclaration des API dans le haut d'un module standard :
Private Declare Function OpenClipboard Lib "user32" _
(ByVal hwnd As Long) As Long
Private Declare Function EmptyClipboard Lib "user32" () As Long
Private Declare Function CloseClipboard Lib "user32" () As Long
Sub Vider_Presse_Papier()
OpenClipboard 0
EmptyClipboard
CloseClipboard
End Sub