VC6.0+GDI实现的图片查看器，启动后全屏，图片不会全屏，保持原始大小，如果要让图片全屏显示，可以修改里面的代码，注释掉里面的BitBlt，然后恢复StrechBitBlt就可以了-Based on the STM32 of serial communication path VC6.0 GDI+ realize picture viewer, started full screen, pictures will not print, keep the original size, if w