给你一段代码
Private Sub sldBright_Change()
text1.text=Change(sldBright.value)
End SubPrivate Sub sldBright_Click()
text1.text=Change(sldBright.value)
End SubPrivate Sub sldBright_Scroll()
text1.text= Change(sldBright.value)
End Sub
Public Function Change(sldValue As Integer) As Integer
Dim iPercent As Integer
Dim iArea As Integer
iPercent = 2000 / 255
iArea = (sldValue - 128) * iPercent
If iArea < -1000 Then iArea = -1000
If iArea > 1000 Then iArea = 1000
Change = iArea
End Function
Private Sub sldBright_Change()
text1.text=Change(sldBright.value)
End SubPrivate Sub sldBright_Click()
text1.text=Change(sldBright.value)
End SubPrivate Sub sldBright_Scroll()
text1.text= Change(sldBright.value)
End Sub
Public Function Change(sldValue As Integer) As Integer
Dim iPercent As Integer
Dim iArea As Integer
iPercent = 2000 / 255
iArea = (sldValue - 128) * iPercent
If iArea < -1000 Then iArea = -1000
If iArea > 1000 Then iArea = 1000
Change = iArea
End Function
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