Merci pour le retour, j'ai testé avec MouseDown et MouseUp mais ça ne fonctionne toujours pas
Private Sub CheckBox1_Mousedown(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Single, ByVal Y As Single)
If CheckBox1 = True Then
CheckBox2 = True
CheckBox3 = True
Else
CheckBox2 = False
CheckBox3 = False
End If
End Sub
Private Sub CheckBox2_Mousedown(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Single, ByVal Y As Single)
If CheckBox2 = True Or CheckBox3 = True Then
CheckBox1 = True
Else
CheckBox1 = False
End If
End Sub
Private Sub CheckBox3_Mousedown(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Single, ByVal Y As Single)
If CheckBox2 = True Or CheckBox3 = True Then
CheckBox1 = True
Else
CheckBox1 = False
End If
End Sub