自动化 – 以编程方式在PowerPoint中播放形状的声音

我正在使用PowerPoint 2007 VSTO加载项,我正在运行一个小问题.加载项使用以下代码将声音添加到当前幻灯片：

var shape = slide.Shapes.AddMediaObject(soundFileLocation, 50, 50, 20, 20);

生成的形状确实有声音,可以通过PowerPoint幻灯片播放.我的问题是,给定一个以这种方式创建的形状的引用,我想以编程方式播放声音,但我找不到这样做的方法.我试过了

var soundEffect = shape.AnimationSettings.SoundEffect;
soundEffect.Play();

但这会失败/崩溃,当我检查soundEffect时,它的类型是ppSoundNone.
编辑：获得部分成功

var shape = slide.Shapes.AddMediaObject(fileLocation, 50, 50, 20, 20);
shape.AnimationSettings.SoundEffect.ImportFromFile(fileLocation);

这样做可以让我播放声音：

var animationSettings = shape.AnimationSettings;
var soundEffect = shape.AnimationSettings.SoundEffect;
soundEffect.Play();

但是有一个主要问题;这仅适用于添加的最后一个形状.出于某种原因,shape.AnimationSettings.SoundEffect.ImportFromFile(fileLocation)似乎将SoundEffect属性重置为ppSoundNone以用于先前创建的形状…

如果这不可行,我会感到惊讶,但我似乎无法找到 – 任何帮助都会非常感激！

抱歉VBA,但它可以很容易地移植到C#.这是有用的：

Sub addsound1()
    Dim ap As Presentation : Set ap = ActivePresentation
    Dim sl As Slide : Set sl = ap.Slides(1)
    Dim audioShape As Shape
    soundFileLocation = "C:\droid_scan.wav"
    Set audioShape = sl.Shapes.AddShape(msoShapeActionButtonSound, 100, 100, 50, 50)
    With audioShape.ActionSettings(ppMouseClick)
        .Action = ppActionNone
        .SoundEffect.ImportFromFile soundFileLocation
    End With
End Sub
Sub addsound2()
    Dim ap As Presentation : Set ap = ActivePresentation
    Dim sl As Slide : Set sl = ap.Slides(1)
    Dim audioShape As Shape
    soundFileLocation = "C:\droid_scan2.wav"
    Set audioShape = sl.Shapes.AddShape(msoShapeActionButtonSound, 50, 50, 50, 50)
    With audioShape.ActionSettings(ppMouseClick)
        .Action = ppActionNone
        .SoundEffect.ImportFromFile soundFileLocation
    End With
End Sub

Sub PlaySound1()
    Dim sh As Shape
    Set sh = ActivePresentation.Slides(1).Shapes(1)
    sh.ActionSettings(ppMouseClick).SoundEffect.Play
End Sub

Sub PlaySound2()
    Dim sh As Shape
    Set sh = ActivePresentation.Slides(1).Shapes(2)
    sh.ActionSettings(ppMouseClick).SoundEffect.Play
End Sub