How to Load Presentations in C++

git clone https://github.com/aspose-slides-foss/Aspose.Slides-FOSS-for-Cpp.git
cd Aspose.Slides-FOSS-for-Cpp && mkdir build && cd build
cmake .. && cmake --build .

#include <Aspose/Slides/Foss/presentation.h>
#include <iostream>

int main() {
    namespace asf = Aspose::Slides::Foss;

    asf::Presentation prs("input.pptx");
    std::cout << "Slide count: " << prs.slides().size() << "\n";
    prs.save("output.pptx", asf::SaveFormat::PPTX);
    return 0;
}

#include <Aspose/Slides/Foss/presentation.h>
#include <iostream>

int main() {
    namespace asf = Aspose::Slides::Foss;

    asf::Presentation prs("deck.pptx");
    for (size_t i = 0; i < prs.slides().size(); ++i) {
        auto& slide = prs.slides()[i];
        std::cout << "Slide " << i << ": "
                  << slide.shapes().size() << " shapes\n";
    }
    return 0;
}

#include <Aspose/Slides/Foss/presentation.h>
#include <iostream>

int main() {
    namespace asf = Aspose::Slides::Foss;

    asf::Presentation prs("deck.pptx");
    for (size_t i = 0; i < prs.slides().size(); ++i) {
        auto& slide = prs.slides()[i];
        for (size_t j = 0; j < slide.shapes().size(); ++j) {
            auto& shape = slide.shapes()[j];
            if (shape.has_text_frame()) {
                auto text = shape.text_frame()->text();
                if (!text.empty()) {
                    std::cout << "  Shape text: " << text << "\n";
                }
            }
        }
    }
    return 0;
}

#include <Aspose/Slides/Foss/presentation.h>
#include <iostream>

int main() {
    namespace asf = Aspose::Slides::Foss;

    asf::Presentation prs("deck.pptx");
    auto& props = prs.document_properties();
    std::cout << "Title:   " << props.title() << "\n";
    std::cout << "Author:  " << props.author() << "\n";
    std::cout << "Subject: " << props.subject() << "\n";
    return 0;
}

prs.save("output.pptx", asf::SaveFormat::PPTX);