我开始与的Open XML SDK 2.0的Microsoft Office 尝试。

我目前能够做某些事情，如检索每张幻灯片的所有文本，并获得了presentation的大小。比如，我做的后者是这样的：

I'm currently able to do certain things such as retrieve all texts in each slide, and get the size of the presentation. For example, I do the latter this way:

using (var doc = PresentationDocument.Open(pptx_filename, false)) {
     var presentation = doc.PresentationPart.Presentation;

     Debug.Print("width: " + (presentation.SlideSize.Cx / 9525.0).ToString());
     Debug.Print("height: " + (presentation.SlideSize.Cy / 9525.0).ToString());
}

现在，我想在一个给定的滑动检索嵌入图像。有谁知道如何做到这一点，也可以点我一些文件关于这个问题的？

Now I'd like to retrieve embedded images in a given slide. Does anyone know how to do this or can point me to some docs on the subject?

推荐答案

首先，你需要抓住 SlidePart 要在其中从获得的图像：

First you need to grab the SlidePart in which you want to get the images from:

public static SlidePart GetSlidePart(PresentationDocument presentationDocument, int slideIndex)
{
    if (presentationDocument == null)
    {
        throw new ArgumentNullException("presentationDocument", "GetSlidePart Method: parameter presentationDocument is null");
    }

    // Get the number of slides in the presentation
    int slidesCount = CountSlides(presentationDocument);

    if (slideIndex < 0 || slideIndex >= slidesCount)
    {
        throw new ArgumentOutOfRangeException("slideIndex", "GetSlidePart Method: parameter slideIndex is out of range");
    }

    PresentationPart presentationPart = presentationDocument.PresentationPart;

    // Verify that the presentation part and presentation exist.
    if (presentationPart != null && presentationPart.Presentation != null)
    {
        Presentation presentation = presentationPart.Presentation;

        if (presentation.SlideIdList != null)
        {
            // Get the collection of slide IDs from the slide ID list.
            var slideIds = presentation.SlideIdList.ChildElements;

            if (slideIndex < slideIds.Count)
            {
               // Get the relationship ID of the slide.
               string slidePartRelationshipId = (slideIds[slideIndex] as SlideId).RelationshipId;

                // Get the specified slide part from the relationship ID.
                SlidePart slidePart = (SlidePart)presentationPart.GetPartById(slidePartRelationshipId);

                 return slidePart;
             }
         }
     }

     // No slide found
     return null;
}

然后，你需要搜索图片的对象将包含你正在寻找基于图像的文件名的图像：

Then you need to search for the Picture object which will contain the image you are looking for based on the file name of the image:

Picture imageToRemove = slidePart.Slide.Descendants<Picture>().SingleOrDefault(picture => picture.NonVisualPictureProperties.OuterXml.Contains(imageFileName));