winform怎么显示文件夹下图片的缩略图

winform如何显示文件夹下图片的缩略图
如题,文件夹下图片很多的情况下

[解决办法]
You might look into this article:
C# Class for generating image thumbnails using Windows Shell

The speed is fairly good and you can use it simply by:

C# code

{       SharedClasses.ThumbnailCreator c = new SharedClasses.ThumbnailCreator();       Bitmap b = c.GetThumbnail(@"C:\windows");       b.Save(@"c:\temp\windowsFolder.jpg");}
[解决办法]

用Bitmap类下的GetThumbnailImage的方法，具体用法看文档