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'hook mouse simplifié (molete souris sur frame)
'
'Author:patricktoulon
'-------------------------------------
'Exemple d'appel dans userform
'L'object appelant peut être un control dans la frame à scroller
'
'Sub Frame2_MouseMove(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Single, ByVal Y As Single)
' rouletambour Frame2
'End Sub
'------------------------------------
'code indenté avec Vba Indenter 3.1
'**********************************
Option Explicit
#If VBA7 Then
Declare PtrSafe Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (ByVal Destination As LongPtr, ByVal Source As LongPtr, ByVal Length As LongPtr)
Declare PtrSafe Function SetWindowsHookEx Lib "user32" Alias "SetWindowsHookExA" (ByVal idHook As LongPtr, ByVal lpfn As LongPtr, ByVal hmod As LongPtr, ByVal dwThreadId As LongPtr) As LongPtr
Declare PtrSafe Function CallNextHookEx Lib "user32" (ByVal hHook As LongPtr, ByVal nCode As LongPtr, ByVal wParam As LongPtr, lParam As LongPtr) As LongPtr
Declare PtrSafe Function UnhookWindowsHookEx Lib "user32" (ByVal hHook As LongPtr) As LongPtr
Declare PtrSafe Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As LongPtr
#Else
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (ByVal Destination As Long, ByVal Source As Long, ByVal Length As Long)
Private Declare Function SetWindowsHookEx Lib "user32" Alias "SetWindowsHookExA" (ByVal idHook As Long, ByVal lpfn As Long, ByVal hmod As Long, ByVal dwThreadId As Long) As Long
Private Declare Function CallNextHookEx Lib "user32" (ByVal hHook As Long, ByVal nCode As Long, ByVal wParam As Long, lParam As Any) As Long
Private Declare Function UnhookWindowsHookEx Lib "user32" (ByVal hHook As Long) As Long
Private Declare Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As Long
#End If
Type POINTAPI: X As LongPtr: Y As LongPtr: End Type
'Switch 64/32 pour la structure du hook de la souris
#If Win64 Then
Private Type MSLLHOOKSTRUCT:
'c'est dans cette partie qu'il faut trouver la faille
pt As POINTAPI
mouseData As LongPtr
flags As LongPtr
time As LongPtr
dwExtraInfo As LongPtr
End Type
#Else
Private Type MSLLHOOKSTRUCT:
'valable pour tout les version 32 d'excel vba7 ou vba 6
'pour 32 ne pas déplacer mousedata et dwExtraInfo car soit ça crashe soit le scroll ne fonctionne qu'en descente
pt As POINTAPI
mouseData As Long
flags As Long
time As Long
dwExtraInfo As Long
End Type
#End If
Const HC_ACTION = 0
Const WH_MOUSE_LL = 14
Const WM_MOUSEWHEEL = &H20A
Public udtlParamStuct As MSLLHOOKSTRUCT
Public plHooking As Long ' permet de savoir si le hook est activé ou pas
Public CtrlHooked As Object ' sera associé à la ListBox
Public pos As POINTAPI
Public EpC As Variant
Sub rouletambour(obj)
'si ca n'a pas démarrer on demarre le hook
If Not CtrlHooked Is Nothing Then If CtrlHooked.Name <> obj.Name Then UnHookMouse
Call HookMouse(obj)
End Sub
'
Function GetHookStruct(ByVal lParam As LongPtr) As MSLLHOOKSTRUCT
CopyMemory VarPtr(udtlParamStuct), lParam, LenB(udtlParamStuct)
GetHookStruct = udtlParamStuct
End Function
#If Win64 Then
Function LowLevelMouseProc(ByVal nCode As LongPtr, ByVal wParam As LongPtr, ByVal lParam As LongPtr) As LongPtr
#Else
Function LowLevelMouseProc(ByVal nCode As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
#End If
On Error Resume Next 'en cas de mouvement très rapide,'évitons les crash en désactivant les erreurs
Dim Criter As Boolean, i&
GetCursorPos pos
Criter = pos.X > EpC(0) And pos.X < EpC(2) And pos.Y > EpC(1) And pos.Y < EpC(3) 'recupère les coordonnée en pixel (left/top/right/bottom du control)
If Not Criter Then UnHookMouse: Exit Function 'quand on est plus dans le périmètre du control bye bye !!
If (nCode = HC_ACTION) Then
If wParam = WM_MOUSEWHEEL Then
LowLevelMouseProc = True
With CtrlHooked
If GetHookStruct(lParam).mouseData > 0 Then .ScrollTop = .ScrollTop - 45 Else .ScrollTop = .ScrollTop + 45
End With
End If
Exit Function
End If
'LowLevelMouseProc = CallNextHookEx(0&, nCode, wParam, ByVal lParam)
On Error GoTo 0
End Function
Public Sub HookMouse(ByVal ControlToScroll As Object, Optional ByVal FormName As String)
If plHooking < 1 Then ' active le hook s'il n'avait pas déjà été activé
EpC = EmplacementControl(ControlToScroll) 'on choppe le rectangle du control par raport à l'ecran(pas du parent!!!!) du control dans un array
Set CtrlHooked = ControlToScroll
plHooking = SetWindowsHookEx(WH_MOUSE_LL, AddressOf LowLevelMouseProc, 0, 0)
End If
End Sub
Public Sub UnHookMouse()
' désactive le hook s'il existe
If plHooking <> 0 Then UnhookWindowsHookEx plHooking: plHooking = 0: Set CtrlHooked = Nothing
End Sub
' fonction du calendar reconvertie
Function EmplacementControl(obj As Object)
If Not obj Is Nothing Then
Dim Lft As Double, Ltop As Double, ParentX As Object, ParentXInsWidth As Double, ParentXInsHeight As Double, K As Double, PPx, A, z
Lft = obj.Left
Ltop = obj.Top ' Normalement Page, Frame ou UserForm
Set ParentX = obj.Parent
With CreateObject("WScript.Shell"): PPx = 1 / (.RegRead("HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\ThemeManager\LastLoadedDPI") / 72): End With
Do
ParentXInsWidth = ParentX.InsideWidth ' Le Page en est pourvu, mais pas le Multipage.
ParentXInsHeight = ParentX.InsideHeight
If TypeOf ParentX Is MSForms.Page Then Set ParentX = ParentX.Parent ' Prend le Multipage, car le Page est sans positionnement.
K = (ParentX.Width - ParentXInsWidth) / 2: Lft = (Lft + ParentX.Left + K): Ltop = (Ltop + ParentX.Top + ParentX.Height - K - ParentXInsHeight)
If Not (TypeOf ParentX Is MSForms.Frame Or TypeOf ParentX Is MSForms.MultiPage) Then Exit Do
Set ParentX = ParentX.Parent
Loop
EmplacementControl = Array(Lft / PPx, Ltop / PPx, (Lft + obj.Width) / PPx, (Ltop + obj.Height) / PPx)
End If
End Function
