OLE 物件

本篇文章示範如何將檔案嵌入為 OLE 物件，並使用 Aspose.Slides for Node.js via Java 來更新其資料。

加入 OLE 物件

將 PDF 檔案嵌入簡報中。

function addOleObject() {
    let presentation = new aspose.slides.Presentation();
    try {
        let slide = presentation.getSlides().get_Item(0);

        let pdfStream = fs.readFileSync("doc.pdf");
        let pdfData = java.newArray("byte", Array.from(pdfStream));
        let dataInfo = new aspose.slides.OleEmbeddedDataInfo(pdfData, "pdf");
        let oleFrame = slide.getShapes().addOleObjectFrame(20, 20, 50, 50, dataInfo);

        presentation.save("ole_object.pptx", aspose.slides.SaveFormat.Pptx);
    } finally {
        presentation.dispose();
    }
}

存取 OLE 物件

取得投影片上第一個 OLE 物件框架。

function accessOleObject() {
    let presentation = new aspose.slides.Presentation("ole_object.pptx");
    try {
        let slide = presentation.getSlides().get_Item(0);

        let firstOleFrame = null;
        for (let i = 0; i < slide.getShapes().size(); i++) {
            let shape = slide.getShapes().get_Item(i);
            if (java.instanceOf(shape, "com.aspose.slides.IOleObjectFrame")) {
                firstOleFrame = shape;
                break;
            }
        }
    } finally {
        presentation.dispose();
    }
}

移除 OLE 物件

從投影片中刪除嵌入的 OLE 物件。

function removeOleObject() {
    let presentation = new aspose.slides.Presentation("ole_object.pptx");
    try {
        let slide = presentation.getSlides().get_Item(0);

        // 假設第一個圖形是 OLE 物件框架。
        let oleFrame = slide.getShapes().get_Item(0);
        
        slide.getShapes().remove(oleFrame);

        presentation.save("ole_object_removed.pptx", aspose.slides.SaveFormat.Pptx);
    } finally {
        presentation.dispose();
    }
}

更新 OLE 物件資料

取代已存在 OLE 物件中嵌入的資料。

function updateOleObject() {
    let presentation = new aspose.slides.Presentation("ole_object.pptx");
    try {
        let slide = presentation.getSlides().get_Item(0);

        // 假設第一個圖形是 OLE 物件框架。
        let oleFrame = slide.getShapes().get_Item(0);

        let dataStream = fs.readFileSync("picture.png");
        let newData = java.newArray("byte", Array.from(dataStream));
        let dataInfo = new aspose.slides.OleEmbeddedDataInfo(newData, "png");
        oleFrame.setEmbeddedData(dataInfo);

        presentation.save("ole_object_updated.pptx", aspose.slides.SaveFormat.Pptx);
    } finally {
        presentation.dispose();
    }
}