C ++控制台键盘事件 [英] C++ console keyboard events

问题描述

有没有办法在Windows控制台中获取关键事件？我需要一个方法来快速获取keydown和keyup事件没有一个GUI。我试过使用getch（），但它不会得到keyups，并等待，直到一个键已经按回来。

Is there any way to get key events in a Windows console? I need a way to get keydown and keyup events quickly without a GUI. I've tried using getch(), but it doesn't get keyups and waits until a key has been pressed to return.

推荐答案

p>你可以使用 GetKeyState 或 GetAsyncKeyState ，但不会给你keydown / keyup事件。它只会告诉你什么键当前下来。

You can use GetKeyState or GetAsyncKeyState, but that won't give you keydown/keyup events. It will only tell you what keys are currently down.

所以如果你真的需要得到keydown / keyup事件，你可以安装一个钩子。
控制台窗口有一个窗口句柄，由Windows中的代码所拥有，消息泵也由Windows中的代码所拥有。

So if you really need to get the keydown/keyup events, you could install a hook. A Console window has a window handle that is owned by code in Windows and a message pump, also owned by code in Windows.

您可以使用 GetConsoleWindow 然后使用 WH_CALLWNDPROC 我们/ library / ms644990（VS.85）.aspx> SetWindowsHookEx 监听发送到控制台窗口的消息。

You can get the window handle of of the console window by using GetConsoleWindowThen install a WH_CALLWNDPROC hook using SetWindowsHookEx to listen in on messages send to the console window.

code> WH_MSGFILTER 。我不知道这是否适用于控制台窗口，但它会生成较少的消息，如果它的工作被忽略。

You might try a WH_MSGFILTER hook instead. I don't know if this works for console windows, but it would generate less messages to be ignored if it does work.

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