userform

Bonjour.
J'ai trouvé ce code sur Internet. Ca fonctionne, mais je n'ai pas cherché à
comprendre comment :
1. dans le code du userform (nommé UserForm1) :

Private Sub UserForm_Activate()
lockPos
End Sub

2. dans un module :

Option Explicit


Private Const MF_BYCOMMAND As Long = &H0&
Private Const SC_MOVE As Long = &HF010
Private Const SC_SEPARATOR As Long = &HF00F


'USER32
Private Declare Function FindWindow Lib "user32" Alias _
"FindWindowA" (ByVal lpClassName As String, _
ByVal lpWindowName As String) As Long
Private Declare Function GetSystemMenu Lib "user32" ( _
ByVal hwnd As Long, ByVal bRevert As Long) As Long
Private Declare Function DrawMenuBar Lib "user32" ( _
ByVal hwnd As Long) As Long
Private Declare Function RemoveMenu Lib "user32" ( _
ByVal hMenu As Long, ByVal nPosition As Long, _
ByVal wFlags As Long) As Long


Private Sub UserForm_Activate()
lockPos
End Sub


Sub lockPos()
Dim hWndForm As Long, hSysMenu As Long, nCnt As Long


hWndForm = FindWindow(vbNullString, UserForm1.Caption)
If hWndForm Then
hSysMenu = GetSystemMenu(hWndForm, False)


If hSysMenu Then
RemoveMenu hSysMenu, SC_MOVE, MF_BYCOMMAND
RemoveMenu hSysMenu, SC_SEPARATOR, MF_BYCOMMAND
DrawMenuBar hWndForm
End If
End If


End Sub

Cordialement.
Daniel

"José" <perez.jose@free.fr> a écrit dans le message de news:
470f1d8f$0$570$426a34cc@news.free.fr...

Bonjour,
Aprés avoir appliqué l'instruction 'Application.ScreenUpdatingúlse',
y a t-il un moyen pour empêcher de déplacer une UserForm à l'aide de la
souris.

Par avance merci.
José