请问想在本窗口成为非活动窗口时做事，该响应什么消息

[hongfeeling]

本人想在窗口成为活动窗口时和非活动窗口时做不同的事情，但是不知道当窗口为非活动窗口时，可以响应什么消息。

[hongfeeling]

WM_ACTIVATEAPP
WM_ENABLE
听名字就是与窗口激活有关
现在本人的问题是 窗口从活动状态转向非活动时的 消息

[yxz_lp]

WM_KILLFOCUS

[yxz_lp]

WM_ENABLE

[zjh824]

应该是WM_ACTIVATEAPP

[hongfeeling]

听楼上老大的查了一下。
The WM_ACTIVATEAPP message is sent when a window belonging to a different application than the active window is about to be activated. The message is sent to the application whose window is being activated and to the application whose window is being deactivated.
The WM_ENABLE message is sent when an application changes the enabled state of a window. It is sent to the window whose enabled state is changing. This message is sent before the EnableWindow function returns, but after the enabled state (WS_DISABLED style bit) of the window has changed.
The WM_KILLFOCUS message is sent to a window immediately before it loses the keyboard focus.
The WM_KILLFOCUS remark:While processing this message, do not make any function calls that display or activate a window. This causes the thread to yield control and can cause the application to stop responding to messages
看来WM_ENABLE有可能事我需要的喽。

[菜牛]

不要“听名字”，而应该查一下MSDN。