VB6.0 编写的图片查看器 ：无边框图片查看，支持窗体顶置，全屏显示，鼠标左键按下即可移动图片，支持放映图片等功能，代码详细，很实用-VB6.0 write picture viewer : no border picture view, support form overhead, full screen display, mouse the left key press can move picture, support showing pictures, and other fu