Private Sub CommandButton1_Click()
Dim MDP As String
MDP = " Le mot de passe "
'si MDP faux ou textbox vide retour sur la feuille et fin
If Me.TextBox1 <> MDP Or Me.TextBox1 = "" Then Exit Sub
Else
Application.Visible = True
Sheets("Acceuil").Activate
UserForm12.Hide
Unload Me
End If
End Sub