VB源码,界面编程,多级菜单

　　VB基于API函数实现特殊菜单效果，实现水平展开的两级菜单或三级菜单，或者是带分隔条的菜单。程序调用GetSystemMetrics函数设定菜单高度，利用For循环添加菜单项-VB source code and programming interface, multi-level menu VB API function to achieve a special menu effect, to achieve the level of the expanded two menu or three menu or a menu with a separator bar. The program calling the GetSystemMetrics function to set the height of the menu, use the For loop to add menu items