VBA-螢幕亮度自行增加/減少

2024-7-19 • tag-icon

問題：

我的筆記型電腦的螢幕亮度隨機降低，然後慢慢恢復。自從我使用了一個使我的用戶表單淡入淡出的巨集以來，就發生了這種情況。

我什至後悔使用該宏，並在幾週前刪除了該宏。

然而，從那時起，筆記型電腦的螢幕亮度時斷時續，突然降低，然後突然緩慢增加，而沒有我觸發它。

我已經刪除了那個衰退宏！

現在我的問題是，我怎麼能永久地最大化筆記型電腦螢幕的亮度，我90％確信它受到了影響/影響衰退我幾週前使用的宏。

我能做什麼，編寫另一個VBA來永久提高亮度？

我怎樣才能解決這個問題？

下面是我使用過的巨集程式碼，已經刪除了。我後悔使用它。連結及程式碼如下：

https://wellsr.com/vba/2018/excel/vba-fade-userform-in-and-out/

'PLACE IN YOUR USERFORM CODE
Option Explicit
#If VBA7 Then
Private Declare PtrSafe Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As LongPtr
Private Declare PtrSafe Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As LongPtr, ByVal nIndex As Long) As Long
Private Declare PtrSafe Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As LongPtr, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Private Declare PtrSafe Function DrawMenuBar Lib "user32" (ByVal hwnd As LongPtr) As Long
Private Declare PtrSafe Function SetLayeredWindowAttributes Lib "user32" (ByVal hwnd As LongPtr, ByVal crKey As Long, ByVal bAlpha As Byte, ByVal dwFlags As Long) As Long 
#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" _
    Alias "GetWindowLongA" ( _
    ByVal hwnd As Long, _
    ByVal nIndex As Long) As Long

Private Declare Function SetWindowLong Lib "user32" _
    Alias "SetWindowLongA" ( _
    ByVal hwnd As Long, _
    ByVal nIndex As Long, _
    ByVal dwNewLong As Long) As Long

Private Declare Function DrawMenuBar Lib "user32" ( _
    ByVal hwnd As Long) As Long

Private Declare Function SetLayeredWindowAttributes Lib "user32" ( _
                ByVal hwnd As Long, _
                ByVal crKey As Long, _
                ByVal bAlpha As Byte, _
                ByVal dwFlags As Long) As Long

#End If
'Constants for title bar
Private Const GWL_STYLE As Long = (-16)           'The offset of a window's style
Private Const GWL_EXSTYLE As Long = (-20)         'The offset of a window's extended style
Private Const WS_CAPTION As Long = &HC00000

'Style to add a titlebar
Private Const WS_EX_DLGMODALFRAME As Long = &H1   'Controls if the window has an icon

'Constants for transparency
Private Const WS_EX_LAYERED = &H80000
Private Const LWA_COLORKEY = &H1                  'Chroma key for fading a certain color on your Form
Private Const LWA_ALPHA = &H2                     'Only needed if you want to fade the entire userform

'sleep
#If VBA7 Then
    Private Declare PtrSafe Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As LongPtr) 'For 64-Bit versions of Excel
    Dim formhandle As LongPtr
#Else
    Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long) 'For 32-Bit versions of Excel
    Dim formhandle As Long
#End If

Private Sub UserForm_Initialize()
'force the form to fully transparent before it even loads
formhandle = FindWindow(vbNullString, Me.Caption)
SetWindowLong formhandle, GWL_EXSTYLE, GetWindowLong(formhandle, GWL_EXSTYLE) Or WS_EX_LAYERED
SetOpacity (0)
End Sub

Private Sub UserForm_Activate()
'HideTitleBarAndBorder Me 'hide the titlebar and border
FadeUserform Me, True 'Fade your userform in
End Sub

Private Sub UserForm_QueryClose(Cancel As Integer, CloseMode As Integer)
FadeUserform Me, False 'Fade your userform in
End Sub

Sub FadeUserform(frm As Object, Optional FadeIn As Boolean = True)
'Defaults to fade your userform in.
'Set the 2nd argument to False to Fade Out.
Dim iOpacity As Integer

formhandle = FindWindow(vbNullString, Me.Caption)

SetWindowLong formhandle, GWL_EXSTYLE, GetWindowLong(formhandle, GWL_EXSTYLE) Or WS_EX_LAYERED
'The following line sets the userform opacity equal to whatever value you have in iOpacity (0 to 255).
If FadeIn = True Then 'fade in
    For iOpacity = 0 To 255 Step 15
        Call SetOpacity(iOpacity)
    Next
Else 'fade out
    For iOpacity = 255 To 0 Step -15
        Call SetOpacity(iOpacity)
    Next
    Unload Me 'unload form once faded out
End If
End Sub

Sub SetOpacity(Opacity As Integer)
        SetLayeredWindowAttributes formhandle, Me.BackColor, Opacity, LWA_ALPHA
        Me.Repaint
Sleep 50
End Sub

Sub HideTitleBarAndBorder(frm As Object)
'Hide title bar and border around userform
'Source: https://wellsr.com/vba/2017/excel/remove-window-border-title-bar-around-userform-vba/
#If VBA7 Then
    Dim lngWindow As LongPtr
    Dim lFrmHdl As LongPtr
#Else
    Dim lngWindow As Long
    Dim lFrmHdl As Long
#End If
    lFrmHdl = FindWindow(vbNullString, frm.Caption)
'Build window and set window until you remove the caption, title bar and frame around the window
    lngWindow = GetWindowLong(lFrmHdl, GWL_STYLE)
    lngWindow = lngWindow And (Not WS_CAPTION)
    SetWindowLong lFrmHdl, GWL_STYLE, lngWindow
    lngWindow = GetWindowLong(lFrmHdl, GWL_EXSTYLE)
    lngWindow = lngWindow And Not WS_EX_DLGMODALFRAME
    SetWindowLong lFrmHdl, GWL_EXSTYLE, lngWindow
    DrawMenuBar lFrmHdl
 End Sub

（已解決，在下面 AppleOddity 和 HarryMC 的幫助下......非常感謝！！）。所附螢幕截圖中的解決方案是檢查三件事：

啟用顯示亮度，需要停用（關閉）
顯示亮度變暗，需設定為 100%
顯示亮度，需要設定為100%

你們太棒了！我喜歡這個網站 StackExchange！

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