Public Declare Function GetInputState Lib "user32" () As Long

Public Sub newDoEvents() '這個(gè)是比較簡(jiǎn)單,功能較少
        If GetInputState() <> 0 then DoEvents
End Sub

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Public Const QS_HOTKEY = &H80
Public Const QS_KEY = &H1
Public Const QS_MOUSEBUTTON = &H4
Public Const QS_MOUSEMOVE = &H2
Public Const QS_PAINT = &H20
Public Const QS_POSTMESSAGE = &H8
Public Const QS_SENDMESSAGE = &H40
Public Const QS_TIMER = &H10
Public Const QS_ALLINPUT = (QS_SENDMESSAGE Or QS_PAINT Or QS_TIMER Or QS_POSTMESSAGE Or QS_MOUSEBUTTON Or QS_MOUSEMOVE Or QS_HOTKEY Or QS_KEY)
Public Const QS_MOUSE = (QS_MOUSEMOVE Or QS_MOUSEBUTTON)
Public Const QS_INPUT = (QS_MOUSE Or QS_KEY)
Public Const QS_ALLEVENTS = (QS_INPUT Or QS_POSTMESSAGE Or QS_TIMER Or QS_PAINT Or QS_HOTKEY)
Public Declare Function GetQueueStatus Lib "user32" (ByVal qsFlags As Long) As Long

Public Function cGetInputState() '這個(gè)可以按自己的要求定義,接收到什么消息才DoEvents
    Dim qsRet As Long
    qsRet = GetQueueStatus(QS_HOTKEY Or QS_KEY Or QS_MOUSEBUTTON Or QS_PAINT)
    if qsRet<>0 then DoEvents
End Function
'有了上面2個(gè)函數(shù)就不怕影響循環(huán)中的運(yùn)算效率了