如何在C＃中设置快捷键全系统 [英] How to set HotKey system-wide in C#

问题描述

在的AutoIt V3 有一个调用的函数的 HotKeySet 的。它设置一个热键，调用时pressed用户的功能。这是一个全系统的热键，这意味着密钥不能被用于任何时热键设置其他

基本上，我想搭上<大骨节病> Esc键或其它键，像 $ ，`等，当用户presses在任何地方，甚至外面的应用程序，它应该让我知道。

例如，我会做这样HotKeySet（{ESC}）一个循环内，并且当它这样做，该方案将等待该密钥是前pssed $ P $。

 公共静态无效的工作（）{
    而（真）{
        字符串任务= NULL;
        锁（更衣室）
            如果（tasks.Count大于0）{
                任务= tasks.Dequeue（）;
                如果（任务== NULL）{
                    返回;
                }
            }
        如果（任务！= NULL）{
            //MessageBox.Show("Performing任务：+任务）;
            Program.mainAnnounceWindow.setLogTextBox（任务）;
            Program.mainAnnounceWindow.setLogTrayTip（任务）;
            Program.windowStateChange（显示）;

            //这里设置的热键
            SetHotkey（`）;

            //等待热键preSS时，它的pssed $ P $ ...执行一些东西
            Thread.sleep代码（5000）; //模拟工作...
            Program.windowStateChange（隐藏）;
        }
        其他 {
            wh.WaitOne（）; //没有更多的任务 - 等待信号
        }
    }
}
 

解决方案

您需要看看的的 RegisterHotKey 的中的 user32.dll中。那里pinvoke.net， RegisterHotKey（USER32） 的。

In AutoIt v3 there's a function called HotKeySet. It sets a hotkey that calls a user function when pressed. It's a system wide hotkey, meaning that the key can't be used for anything else when the hotkey is set.

Basically, I would like to catch Esc or any other key like $, `, etc. and when the user presses it anywhere, even outside of the application, it should let me know.

For example, I would do like HotKeySet({ESC}) inside a loop and when it's done, the program would wait for that key to be pressed before.

public static void work() {
    while (true) {
        string task = null;
        lock (locker)
            if (tasks.Count > 0) {
                task = tasks.Dequeue();
                if (task == null) {
                    return;
                }
            }
        if (task != null) {
            //MessageBox.Show("Performing task: " + task);
            Program.mainAnnounceWindow.setLogTextBox(task);
            Program.mainAnnounceWindow.setLogTrayTip(task);
            Program.windowStateChange("Show");

            // Set the hotkey here
            SetHotkey(`);

            //Wait for hotkey to press when it's pressed... Execute some stuff
            Thread.Sleep(5000); // Simulate work...
            Program.windowStateChange("Hide");
        }
        else {
            wh.WaitOne(); // No more tasks - wait for a signal
        }
    }
}

解决方案

You need to take a look at RegisterHotKey in user32.dll. There a good example at pinvoke.net, RegisterHotKey (user32).

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