ATL中控件不能响应消息的问题

最新推荐文章于 2018-07-20 09:49:15 发布

原创最新推荐文章于 2018-07-20 09:49:15 发布 · 695 阅读

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本文介绍了一个控件类成员变量m_bWindowOnly的作用，该变量指示控件是否应该以窗口模式运行，即使容器支持无窗口控件。文章强调了要在自定义控件类中正确声明并使用此数据成员。

在控件的构造函数中加上 m_bWindowOnly = True;

Flag indicating the control should be windowed, even if the container supports windowless controls.unsigned m_bWindowOnly:1; Remarks Note To use this data member within your control class, you must declare it as a data member in your control class. Your control class will not inherit this data member from the base class because it is declared within a union in the base class. See Also CComControlBase Overview | Class Members | CComControlBase::m_bWndLess