模拟外部单击弹出菜单 [英] Mimic outside click on a popup menu

问题描述

您知道如果在弹出菜单中单击菜单之外的弹出菜单会如何消失？好吧，我想重现这一点。

You know how in a popup menu if you click outside of the menu the popup disappears? Well I would like to reproduce that.

当前，单击按钮时，我正在创建一个面板，上面带有一些组件。单击面板上的某个按钮时，面板和子组件将消失。但是，如果您在面板外的任何位置单击，我希望它消失。

Currently I am having a panel created with some components on it when a button is clicked. The panel and sub components go away when you click a certain button on the panel. However I want it to go away if you click anywhere outside of the panel.

推荐答案

我认为您需要安装和应用范围内的鼠标消息钩子，如果您的面板可见并且鼠标事件的坐标在面板范围之外，请隐藏该面板。

I think you would need to install and application-wide mouse message hook, and if your panel is visible and the coordinates of the mouse event are outside of your panel bounds, then hide the panel. Also handle the WM_ACTIVATE message in your form.

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