问仅在PowerPoint幻灯片放映中的某些幻灯片上自动暂停播放声音

EN

#If VBA7 Then
    Declare PtrSafe Function mciSendString Lib "winmm.dll" Alias _
    "mciSendStringA" (ByVal lpstrCommand As String, ByVal _
    lpstrReturnString As Any, ByVal uReturnLength As Long, ByVal hwndCallback As Long) As Long
#Else
    Declare Function mciSendString Lib "winmm.dll" Alias _
    "mciSendStringA" (ByVal lpstrCommand As String, ByVal _
    lpstrReturnString As Any, ByVal uReturnLength As Long, ByVal hwndCallback As Long) As Long

#End If

Sub OnSlideShowPageChange(SSW As SlideShowWindow)

    Dim fileToPlay As String
    Dim MCIAudio As Long

    fileToPlay = Chr(34) & ActivePresentation.Path & "\test.mp3" & Chr(34)

    Select Case SSW.View.CurrentShowPosition
        Case 1:
            'first, close the previous playing and open new and play
            MCIPlay = mciSendString("close MyAudio", Nothing, 0, 0)
            MCIAudio = mciSendString("open " & fileToPlay & " alias MyAudio", Nothing, 0, 0)
            MCIAudio = mciSendString("play MyAudio", Nothing, 0, 0)
        Case 2:
            MCIAudio = mciSendString("pause MyAudio", Nothing, 0, 0)
        Case 3:
            MCIAudio = mciSendString("resume MyAudio", Nothing, 0, 0)
        Case 4:
            MCIAudio = mciSendString("stop MyAudio", Nothing, 0, 0)
    End Select
End Sub

Sub OnSlideShowTerminate()
    Dim MCIAudio As Long

    MCIAudio = mciSendString("stop MyAudio", Nothing, 0, 0)
    MCIAudio = mciSendString("close MyAudio", Nothing, 0, 0)
End Sub