get_CaptionTracks()

IAudioFrame::get_CaptionTracks() method

Gets the collection of closed captions associated with the audio frame. This property is read-only and returns an ICaptionsCollection containing all caption tracks.

virtual System::SharedPtr<ICaptionsCollection> Aspose::Slides::IAudioFrame::get_CaptionTracks()=0

Remarks

Example:

System::SharedPtr<Presentation> pres = System::MakeObject<Presentation>(u"audio with captions.pptx");
for (auto&& shape : pres->get_Slide(0)->get_Shapes())
{
    if (System::ObjectExt::Is<IAudioFrame>(shape))
    {
        System::SharedPtr<IAudioFrame> audioFrame = System::ExplicitCast<IAudioFrame>(shape);
        // Save the caption track's binary data as a .vtt file
        for (auto&& captionTrack : audioFrame->get_CaptionTracks())
        {
            System::IO::File::WriteAllBytes(System::Convert::ToString(captionTrack->get_CaptionId()) + u".vtt", captionTrack->get_BinaryData());
        }
    }
}

See Also

set_TrimFromEnd()