OLE 物件

本文示範如何將檔案嵌入為 OLE 物件，並使用 Aspose.Slides for C++ 更新其資料。

新增 OLE 物件

將 PDF 檔案嵌入投影片中。

static void AddOleObject()
{
    auto presentation = MakeObject<Presentation>();
    auto slide = presentation->get_Slide(0);

    auto pdfData = File::ReadAllBytes(u"doc.pdf");
    auto dataInfo = MakeObject<OleEmbeddedDataInfo>(pdfData, u"pdf");
    auto oleFrame = slide->get_Shapes()->AddOleObjectFrame(20, 20, 50, 50, dataInfo);

    presentation->Dispose();
}

存取 OLE 物件

取得投影片上第一個 OLE 物件框架。

static void AccessOleObject()
{
    auto presentation = MakeObject<Presentation>();
    auto slide = presentation->get_Slide(0);

    auto pdfData = File::ReadAllBytes(u"doc.pdf");
    auto dataInfo = MakeObject<OleEmbeddedDataInfo>(pdfData, u"pdf");
    auto oleFrame = slide->get_Shapes()->AddOleObjectFrame(20, 20, 50, 50, dataInfo);

    auto firstOleFrame = SharedPtr<IOleObjectFrame>();
    for (auto&& shape : slide->get_Shapes())
    {
        if (ObjectExt::Is<IOleObjectFrame>(shape))
        {
            firstOleFrame = ExplicitCast<IOleObjectFrame>(shape);
            break;
        }
    }

    presentation->Dispose();
}

移除 OLE 物件

從投影片中刪除已嵌入的 OLE 物件。

static void RemoveOleObject()
{
    auto presentation = MakeObject<Presentation>();
    auto slide = presentation->get_Slide(0);

    auto pdfData = File::ReadAllBytes(u"doc.pdf");
    auto dataInfo = MakeObject<OleEmbeddedDataInfo>(pdfData, u"pdf");
    auto oleFrame = slide->get_Shapes()->AddOleObjectFrame(20, 20, 50, 50, dataInfo);

    slide->get_Shapes()->Remove(oleFrame);

    presentation->Dispose();
}

更新 OLE 物件資料

取代已存在 OLE 物件中嵌入的資料。

static void UpdateOleObjectData()
{
    auto presentation = MakeObject<Presentation>();
    auto slide = presentation->get_Slide(0);

    auto pdfData = File::ReadAllBytes(u"doc.pdf");
    auto dataInfo = MakeObject<OleEmbeddedDataInfo>(pdfData, u"pdf");
    auto oleFrame = slide->get_Shapes()->AddOleObjectFrame(20, 20, 50, 50, dataInfo);

    auto newData = File::ReadAllBytes(u"Picture.png");
    auto newDataInfo = MakeObject<OleEmbeddedDataInfo>(newData, u"png");
    oleFrame->SetEmbeddedData(newDataInfo);

    presentation->Dispose();
}