set_Handout()

void Aspose::Slides::Export::HandoutLayoutingOptions::set_Handout(HandoutType value)

System::SharedPtr<Presentation> pres = System::MakeObject<Presentation>(u"pres.pptx");

System::SharedPtr<HandoutLayoutingOptions> handoutLayoutingOptions = System::MakeObject<HandoutLayoutingOptions>();
handoutLayoutingOptions->set_Handout(HandoutType::Handouts4Horizontal);

System::SharedPtr<RenderingOptions> options = System::MakeObject<RenderingOptions>();
options->set_SlidesLayoutOptions(handoutLayoutingOptions);

System::Drawing::Size size(1920, 1080);
pres->get_Slide(0)->GetThumbnail(options, size)->Save(u"pres-handout.png");