我需要从pptx文件中的图像中检索图像文件名。我已经从图像中获取了流,但我没有得到图像文件的名称......这是我的代码:
private static Stream GetParagraphImage(DocumentFormat.OpenXml.Presentation.Picture picture, DocumentFormat.OpenXml.Packaging.PresentationDocument presentation, ref MyProject.Import.Office.PowerPoint.Presentation.Paragraph paragraph)
{
// Getting the image id
var imageId = picture.BlipFill.Blip.Embed.Value;
// Getting the stream of the image
var part = apresentacao.PresentationPart.GetPartById(idImagem);
var stream = part.GetStream();
// Getting the image name
var imageName = GetImageName(imageId, presentation);
/* Here i need a method that returns the image file name based on the id of the image and the presentation object.*/
// Setting my custom object ImageName property
paragraph.ImageName = imageName;
// Returning the stream
return stream;
}
任何人都知道我怎么能做到这一点? 谢谢!!
答案 0 :(得分:0)
pptx文件中的图片/图像实际上有两个文件名:
如果您需要图像的文件名,因为它嵌入在pptx文件中 您可以使用以下功能:
public static string GetEmbeddedFileName(ImagePart part)
{
return part.Uri.ToString();
}
如果您需要图像的原始文件系统名称,可以使用以下功能:
public static string GetOriginalFileSystemName(DocumentFormat.OpenXml.Presentation.Picture pic)
{
return pic.NonVisualPictureProperties.NonVisualDrawingProperties.Description;
}
开始编辑:
这是一个完整的代码示例:
using (var doc = PresentationDocument.Open(fileName, false))
{
var presentation = doc.PresentationPart.Presentation;
foreach (SlideId slide_id in presentation.SlideIdList)
{
SlidePart slide_part = doc.PresentationPart.GetPartById(slide_id.RelationshipId) as SlidePart;
if (slide_part == null || slide_part.Slide == null)
continue;
Slide slide = slide_part.Slide;
foreach (var pic in slide.Descendants<DocumentFormat.OpenXml.Presentation.Picture>())
{
string id = pic.NonVisualPictureProperties.NonVisualDrawingProperties.Id;
string desc = pic.NonVisualPictureProperties.NonVisualDrawingProperties.Description;
Console.Out.WriteLine(desc);
}
}
}
结束编辑
希望,这有帮助。