我在网上找到了下面的代码(不记得在哪里),它允许鼠标滚轮通过API调用在我的Userform的组合框中运行;该代码可以完美地实现这一目的。我遇到的问题是他们所谓的“脱钩”鼠标,或者将鼠标滚轮返回到常规默认操作。目前,我无法获取鼠标脱钩的代码,这会导致滚轮在Windows期间无法运行,除非我关闭整个Excel应用程序。有人能插话帮我解决这个问题吗?
常规模块代码:
Option Explicit
Declare Function FindWindow Lib "user32" Alias "FindWindowA" _
(ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Declare Function GetForegroundWindow Lib "user32" () As Long
Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" _
(ByVal Destination As Long, ByVal Source As Long, ByVal Length As Long)
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
Declare Function CallNextHookEx Lib "user32" (ByVal hHook As Long, _
ByVal nCode As Long, ByVal wParam As Long, lParam As Any) As Long
Declare Function UnhookWindowsHookEx Lib "user32" (ByVal hHook As Long) As Long
Type POINTAPI
X As Long
Y As Long
End Type
Type MSLLHOOKSTRUCT 'Will Hold the lParam struct Data
pt As POINTAPI
mouseData As Long ' Holds Forward\Bacward flag
flags As Long
time As Long
dwExtraInfo As Long
End Type
Const HC_ACTION = 0
Const WH_MOUSE_LL = 14
Const WM_MOUSEWHEEL = &H20A
Dim hhkLowLevelMouse, lngInitialColor As Long
Dim udtlParamStuct As MSLLHOOKSTRUCT
Public intTopIndex As Integer
'==========================================================================
'\\Copy the Data from lParam of the Hook Procedure argument to our Struct
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
'Avoid XL crashing if RunTime error occurs due to Mouse fast movement
On Error Resume Next
If (nCode = HC_ACTION) Then
If wParam = WM_MOUSEWHEEL Then
'\\ Don't process Default WM_MOUSEWHEEL Window message
LowLevelMouseProc = True
'\\ Change this to your userform name
With SkillChange_Begin.Controls(Worksheets("Skill Change Detail").Range("AV2").Value)
'\\ if rolling forward increase Top index by 1 to cause an Up Scroll
If GetHookStruct(lParam).mouseData > 0 Then
.TopIndex = intTopIndex - 1
'\\ Store new TopIndex value
intTopIndex = .TopIndex
Else '\\ if rolling backward decrease Top index by 1 to cause _
'\\a Down Scroll
.TopIndex = intTopIndex + 1
'\\ Store new TopIndex value
intTopIndex = .TopIndex
End If
End With
End If
Exit Function
End If
LowLevelMouseProc = CallNextHookEx(0, nCode, wParam, ByVal lParam)
End Function
'=======================================================================
Sub Hook_Mouse()
hhkLowLevelMouse = SetWindowsHookEx _
(WH_MOUSE_LL, AddressOf LowLevelMouseProc, Application.Hinstance, 0)
End Sub
'========================================================================
Sub UnHook_Mouse()
If hhkLowLevelMouse <> 0 Then UnhookWindowsHookEx hhkLowLevelMouse
End Sub
用户表单代码:
Private Sub Skill1_1_DropButtonClick()
Worksheets("Skill Change Detail").Range("AV2").Value = SkillChange_Begin.Frame31.ActiveControl.Name
intTopIndex = Skill1_1.TopIndex
Hook_Mouse
End Sub
Private Sub UserForm_Terminate()
UnHook_Mouse
End Sub
