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'hook mouse simplifié (molete souris sur frame)
'défilement dans controls liste frame
'author:patricktoulon
'Sub Frame2_MouseMove(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Single, ByVal Y As Single)
' rouletambour Frame2
'End Sub
'**********************************
Option Explicit
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 Long
Type POINTAPI: X As Long: Y As Long: End Type
Private Type MSLLHOOKSTRUCT:
pt As POINTAPI
mouseData As Long
flags As Long
time As Long
dwExtraInfo As Long
End Type
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 Long) As MSLLHOOKSTRUCT
CopyMemory VarPtr(udtlParamStuct), lParam, LenB(udtlParamStuct)
GetHookStruct = udtlParamStuct
End Function
Function LowLevelMouseProc(ByVal nCode As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
'On Error Resume Next 'en cas de mouvement très rapide,'évitons les crash en désactivant les erreurs
Dim Criter, 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 '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, P As Object, PInsWidth As Double, PInsHeight As Double, K As Double, PPx, A, z
Lft = obj.Left: Ltop = obj.Top: Set P = obj.Parent ' Normalement Page, Frame ou UserForm
With CreateObject("WScript.Shell"): PPx = 1 / (.RegRead("HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\ThemeManager\LastLoadedDPI") / 72): End With
Do
PInsWidth = P.InsideWidth: PInsHeight = P.InsideHeight ' Le Page en est pourvu, mais pas le Multipage.
If TypeOf P Is MSForms.Page Then Set P = P.Parent ' Prend le Multipage, car le Page est sans positionnement.
K = (P.Width - PInsWidth) / 2: Lft = (Lft + P.Left + K): Ltop = (Ltop + P.Top + P.Height - K - PInsHeight)
If Not (TypeOf P Is MSForms.Frame Or TypeOf P Is MSForms.MultiPage) Then Exit Do
Set P = P.Parent
Loop
EmplacementControl = Array(Lft / PPx, Ltop / PPx, (Lft + obj.Width) / PPx, (Ltop + obj.Height) / PPx)
End If
End Function
