关于USB摄像头进行编程,并进行截图.并将BMP图片转成JPG文件-Programming on the USB camera, and make screenshots. And BMP image files converted to JPG

一种USB数字相机采集、GDI显示及处理的工程，对图像采集、图像显示及图像编程人员有一定的借鉴作用。-A USB digital camera acquisition, GDI display and processing engineering, image acquisition, image display and image programmers reference.