ENLEVER L'EFFET FOCUS SUR LES BOUTONS

'API Declarations
Private Declare Function SetWindowLong Lib "user32" _
Alias "SetWindowLongA" (ByVal hWnd As Long, _
ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Private Declare Function GetWindowLong Lib "user32" _
Alias "GetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long) As Long
Private Declare Function CallWindowProc Lib "user32" _
Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, _
ByVal hWnd As Long, ByVal Msg As Long, ByVal wParam As Long, _
ByVal lParam As Long) As Long

'Constantes
Private Const GWL_WNDPROC = (-4)
Private Const WM_SETFOCUS = &H7

'Variables
Public StandardButtonProc As Long

Public Sub NoFocusRect(Button As Object, vValue As Boolean)
    If vValue = True Then 'le carré est visible
        'sauvegarde l'adresse de la procedure du bouton
        StandardButtonProc = GetWindowLong(Button.hWnd, GWL_WNDPROC)
        'Subclass le bouton pour controler ces messages windows
        SetWindowLong Button.hWnd, GWL_WNDPROC, AddressOf ButtonProc
    Else 'le carré est pas visible
        'enleve le subclass du bouton
        SetWindowLong Button.hWnd, GWL_WNDPROC, StandardButtonProc
    End If
End Sub

Public Function ButtonProc(ByVal hWnd As Long, _
ByVal uMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
    'la procédure qui reçoit tous les messages de windows
    'pour le subclassing du bouton
    On Error Resume Next
    Select Case uMsg&
        'Le bouton va recevoir le focus
        Case WM_SETFOCUS
        'sort de la procédure -> le message n'atteind pas le bouton
        Exit Function
    End Select
    'appel la procédure standard du bouton
    ButtonProc = CallWindowProc(StandardButtonProc, hWnd&, uMsg&, wParam&, lParam&)
End Function