如何判断菜单是否可见 [英] How to tell if menu is visible

问题描述

我正在使用user32.dll中的菜单功能，我希望可以通过语法确定当前菜单是否可见（换句话说，如果用户点击了下拉菜单或弹出菜单，并且当前与它进行交互？）

I am using the menu functions in user32.dll, and I am hoping it is possible to grammatically determine if a menu currently visible, (in other words, if the user has clicked on a dropdown or popup menu, and is currently interacting with it?)

推荐答案

我正在使用user32.dll中的菜单函数，我希望可以通过语法确定如果菜单当前可见，（换句话说，如果用户点击了下拉菜单或弹出菜单，并且当前正在与它进行交互？）

I am using the menu functions in user32.dll, and I am hoping it is possible to grammatically determine if a menu currently visible, (in other words, if the user has clicked on a dropdown or popup menu, and is currently interacting with it?)

窗口过程将收到
WM_INITMENU 和
WM_INITMENUPOPUP 。 当选择菜单项时，
WM_MENUSELECT

The window procedure will receive WM_INITMENU and WM_INITMENUPOPUP for menu interactions.  And when a menu item is selected, WM_MENUSELECT

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