对话框中使用缩略图功能，CBmpFileDialog类实现的文件功能，VC.NET如何在打开对话框中预览图片文件的示例，虽然预览的图像不是太清淅，但至少可以让人看清楚图片的内容是什么，还可显示出图片的宽高像素大小，实际占用字节大小，以及是多少位的真彩位图。-Dialog box, use the thumbnail feature, file functions CBmpFileDialog class implementation, VC.NET example of how the open file dialog box preview picture, although the preview image is not too clear mission, but at least people can see the picture content is What also shows the size of the image pixel width and height, actual occupation bytes in size, and is how many color bitmap.