Hi everyone,
I found this module which allows scrolling with the mouse wheel ComboBox and ListBox. It works well as long as the workbook is opened on the main display but if you working with multiple displays and have your spreadsheet application opened on a different display the mouse wheel does not work. Is there a way to extend the feature on the additional displays?
I found this module which allows scrolling with the mouse wheel ComboBox and ListBox. It works well as long as the workbook is opened on the main display but if you working with multiple displays and have your spreadsheet application opened on a different display the mouse wheel does not work. Is there a way to extend the feature on the additional displays?
VBA Code:
Option Explicit
#If Win64 Then
Private Type POINTAPI
XY As LongLong
End Type
#Else
Private Type POINTAPI
X As Long
Y As Long
End Type
#End If
Private Type MOUSEHOOKSTRUCT
Pt As POINTAPI
hWnd As Long
wHitTestCode As Long
dwExtraInfo As Long
End Type
#If VBA7 Then
Private Declare PtrSafe Function FindWindow Lib "user32" _
Alias "FindWindowA" ( _
ByVal lpClassName As String, _
ByVal lpWindowName As String) As Long ' not sure if this should be LongPtr
#If Win64 Then
Private Declare PtrSafe Function GetWindowLongPtr Lib "user32" _
Alias "GetWindowLongPtrA" ( _
ByVal hWnd As LongPtr, _
ByVal nIndex As Long) As LongPtr
#Else
Private Declare PtrSafe Function GetWindowLong Lib "user32" _
Alias "GetWindowLongA" ( _
ByVal hWnd As LongPtr, _
ByVal nIndex As Long) As LongPtr
#End If
Private Declare PtrSafe Function SetWindowsHookEx Lib "user32" _
Alias "SetWindowsHookExA" ( _
ByVal idHook As Long, _
ByVal lpfn As LongPtr, _
ByVal hmod As LongPtr, _
ByVal dwThreadId As Long) As LongPtr
Private Declare PtrSafe Function CallNextHookEx Lib "user32" ( _
ByVal hHook As LongPtr, _
ByVal nCode As Long, _
ByVal wParam As LongPtr, _
lParam As Any) As LongPtr
Private Declare PtrSafe Function UnhookWindowsHookEx Lib "user32" ( _
ByVal hHook As LongPtr) As LongPtr
#If Win64 Then
Private Declare PtrSafe Function WindowFromPoint Lib "user32" ( _
ByVal Point As LongLong) As LongPtr
#Else
Private Declare PtrSafe Function WindowFromPoint Lib "user32" ( _
ByVal xPoint As Long, _
ByVal yPoint As Long) As LongPtr
#End If
Private Declare PtrSafe Function GetCursorPos Lib "user32" ( _
ByRef lpPoint As POINTAPI) As LongPtr
Private mLngMouseHook As LongPtr
Private mListBoxHwnd As LongPtr
#Else
Private Declare Function FindWindow Lib "user32" _
Alias "FindWindowA" ( _
ByVal lpClassName As String, _
ByVal lpWindowName As String) As Long
Private Declare Function GetWindowLong Lib "user32.dll" _
Alias "GetWindowLongA" ( _
ByVal hWnd As Long, _
ByVal nIndex As Long) 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 WindowFromPoint Lib "user32" ( _
ByVal xPoint As Long, _
ByVal yPoint As Long) As Long
Private Declare Function GetCursorPos Lib "user32.dll" ( _
ByRef lpPoint As POINTAPI) As Long
Private mLngMouseHook As Long
Private mListBoxHwnd As Long
#End If
Private Const WH_MOUSE_LL As Long = 14
Private Const WM_MOUSEWHEEL As Long = &H20A
Private Const HC_ACTION As Long = 0
Private Const GWL_HINSTANCE As Long = (-6)
Private mCtl As Object
Private mbHook As Boolean
'******************************************
'******************************************
Const scrollOnly As Boolean = False ' set to False to actually move selection when scrolling mouse wheel
'******************************************
'******************************************
Sub HookListBoxScroll(frm As Object, ctl As Object)
Dim tPT As POINTAPI
#If VBA7 Then
Dim lngAppInst As LongPtr
Dim hwndUnderCursor As LongPtr
#Else
Dim lngAppInst As Long
Dim hwndUnderCursor As Long
#End If
GetCursorPos tPT
#If Win64 Then
hwndUnderCursor = WindowFromPoint(tPT.XY)
#Else
hwndUnderCursor = WindowFromPoint(tPT.X, tPT.Y)
#End If
If TypeOf ctl Is UserForm Then
If Not frm Is ctl Then ctl.SetFocus
Else
If Not frm.ActiveControl Is ctl Then ctl.SetFocus
End If
If mListBoxHwnd <> hwndUnderCursor Then
UnhookListBoxScroll
Set mCtl = ctl
mListBoxHwnd = hwndUnderCursor
#If Win64 Then
lngAppInst = GetWindowLongPtr(mListBoxHwnd, GWL_HINSTANCE)
#Else
lngAppInst = GetWindowLong(mListBoxHwnd, GWL_HINSTANCE)
#End If
If Not mbHook Then
mLngMouseHook = SetWindowsHookEx(WH_MOUSE_LL, AddressOf MouseProc, lngAppInst, 0)
mbHook = mLngMouseHook <> 0
End If
End If
End Sub
Sub UnhookListBoxScroll()
If mbHook Then
Set mCtl = Nothing
UnhookWindowsHookEx mLngMouseHook
mLngMouseHook = 0
mListBoxHwnd = 0
mbHook = False
End If
End Sub
#If VBA7 Then
Private Function MouseProc( _
ByVal nCode As Long, _
ByVal wParam As Long, _
ByRef lParam As MOUSEHOOKSTRUCT) As LongPtr
Dim idx As Long
On Error GoTo errH
If (nCode = HC_ACTION) Then
#If Win64 Then
If WindowFromPoint(lParam.Pt.XY) = mListBoxHwnd Then
If wParam = WM_MOUSEWHEEL Then
MouseProc = True
If TypeOf mCtl Is Frame Then
If lParam.hWnd > 0 Then idx = -10 Else idx = 10
idx = idx + mCtl.ScrollTop
If idx >= 0 And idx < ((mCtl.ScrollHeight - mCtl.Height) + 17.25) Then mCtl.ScrollTop = idx
ElseIf TypeOf mCtl Is UserForm Then
If lParam.hWnd > 0 Then idx = -10 Else idx = 10
idx = idx + mCtl.ScrollTop
If idx >= 0 And idx < ((mCtl.ScrollHeight - mCtl.Height) + 17.25) Then mCtl.ScrollTop = idx
Else
If lParam.hWnd > 0 Then idx = -1 Else idx = 1
'*************** MAKE scrollOnly False IF YOU WANT TO CHANGE THE SELECTION RATHER THAN JUST SCROLL ******
If scrollOnly Then
idx = idx + mCtl.TopIndex
If idx >= 0 Then mCtl.TopIndex = idx
Else
idx = idx + mCtl.ListIndex
If idx >= 0 Then mCtl.ListIndex = idx
End If
'*********************************************************************************************************
End If
Exit Function
End If
Else
UnhookListBoxScroll
End If
#Else
If WindowFromPoint(lParam.Pt.X, lParam.Pt.Y) = mListBoxHwnd Then
If wParam = WM_MOUSEWHEEL Then
MouseProc = True
If TypeOf mCtl Is Frame Then
If lParam.hWnd > 0 Then idx = -10 Else idx = 10
idx = idx + mCtl.ScrollTop
If idx >= 0 And idx < ((mCtl.ScrollHeight - mCtl.Height) + 17.25) Then mCtl.ScrollTop = idx
ElseIf TypeOf mCtl Is UserForm Then
If lParam.hWnd > 0 Then idx = -10 Else idx = 10
idx = idx + mCtl.ScrollTop
If idx >= 0 And idx < ((mCtl.ScrollHeight - mCtl.Height) + 17.25) Then mCtl.ScrollTop = idx
Else
If lParam.hWnd > 0 Then idx = -1 Else idx = 1
'*************** MAKE scrollOnly False IF YOU WANT TO CHANGE THE SELECTION RATHER THAN JUST SCROLL ******
If scrollOnly Then
idx = idx + mCtl.TopIndex
If idx >= 0 Then mCtl.TopIndex = idx
Else
idx = idx + mCtl.ListIndex
If idx >= 0 Then mCtl.ListIndex = idx
End If
'********************************************************************************************************
End If
Exit Function
End If
Else
UnhookListBoxScroll
End If
#End If
End If
MouseProc = CallNextHookEx( _
mLngMouseHook, nCode, wParam, ByVal lParam)
Exit Function
errH:
UnhookListBoxScroll
End Function
#Else
Private Function MouseProc( _
ByVal nCode As Long, _
ByVal wParam As Long, _
ByRef lParam As MOUSEHOOKSTRUCT) As Long
Dim idx As Long
On Error GoTo errH
If (nCode = HC_ACTION) Then
If WindowFromPoint(lParam.Pt.X, lParam.Pt.Y) = mListBoxHwnd Then
If wParam = WM_MOUSEWHEEL Then
MouseProc = True
If TypeOf mCtl Is Frame Then
If lParam.hWnd > 0 Then idx = -10 Else idx = 10
idx = idx + mCtl.ScrollTop
If idx >= 0 And idx < ((mCtl.ScrollHeight - mCtl.Height) + 17.25) Then mCtl.ScrollTop = idx
ElseIf TypeOf mCtl Is UserForm Then
If lParam.hWnd > 0 Then idx = -10 Else idx = 10
idx = idx + mCtl.ScrollTop
If idx >= 0 And idx < ((mCtl.ScrollHeight - mCtl.Height) + 17.25) Then mCtl.ScrollTop = idx
Else
If lParam.hWnd > 0 Then idx = -1 Else idx = 1
'*************** MAKE scrollOnly False IF YOU WANT TO CHANGE THE SELECTION RATHER THAN JUST SCROLL ******
If scrollOnly Then
idx = idx + mCtl.TopIndex
If idx >= 0 Then mCtl.TopIndex = idx
Else
idx = idx + mCtl.ListIndex
If idx >= 0 Then mCtl.ListIndex = idx
End If
'*********************************************************************************************************
End If
Exit Function
End If
Else
UnhookListBoxScroll
End If
End If
MouseProc = CallNextHookEx( _
mLngMouseHook, nCode, wParam, ByVal lParam)
Exit Function
errH:
UnhookListBoxScroll
End Function
#End If
