winapi - KillTimer 真的有必要吗？

Question

这似乎是 Is KillTimer necessary? 的重复问题。 ，但我想通过可靠来源确认这一点。

销毁窗口真的会释放操作系统为计时器分配的资源吗？ (DestroyWindowsTimers 真的会被调用吗？更不用说这个函数是否确实存在了？如果是的话，在哪里？)

Answer 1

不，没有必要。来自DestroyWindow的文档(添加强调):

The function sends WM_DESTROY and WM_NCDESTROY messages to the window to deactivate it and remove the keyboard focus from it. The function also destroys the window's menu, flushes the thread message queue, destroys timers, removes clipboard ownership, and breaks the clipboard viewer chain (if the window is at the top of the viewer chain).