此代码是奥林巴斯相机驱动的例程，可实现对奥林巴斯单反相机的基本控制，如拍照、聚焦、向pc上传图像（同过usb和1394总线方式）。-This code is the Olympus camera-driven routines, can be realized on the Olympus SLR camera' s basic controls, such as photographs, Focus, upload images to the pc (with usb and 1394