如果尚未获得Caps Lock状态，并将其设置为on，我该怎么办？ [英] How can I get the Caps Lock state, and set it to on, if it isn't already?

问题描述

我想了解一个关于如何关闭的大写锁定的具体示例。

I would like a specific example on how to turn caps lock on if it is off.

我知道如何切换密钥，我一直在使用它：

I know how to toggle the key, I have been using this:

toolkit.setLockingKeyState(KeyEvent.VK_CAPS_LOCK, Boolean.TRUE);

这将改变密钥的状态，无论密钥是打开还是关闭。
但是我想确保它在应用程序开始时打开。

That will change the state of the key whether it is on or off. But I want to make sure it is on at the beginning of the application.

（最终目标是让键盘LED以某些顺序闪烁，如果我有一定的起始状态，效果会更好。）

(The final goal is having the keyboard LEDs flash in certain sequences, which works better if I have a certain starting state.)

推荐答案

你可以使用 getLockingKeyState 检查是否Caps Lock目前已设置：

You can use getLockingKeyState to check if Caps Lock is currently set:

boolean isOn = Toolkit.getDefaultToolkit().getLockingKeyState(KeyEvent.VK_CAPS_LOCK);

然而，这是不必要的 - setLockingKeyState 不切换键的状态，它设置它。如果您传递 true ，无论原始状态如何，它都会将关键状态设置为开启：

However, it's unnecessary -- setLockingKeyState doesn't toggle the state of the key, it sets it. If you pass it true it will set the key state to on regardless of the original state:

Toolkit.getDefaultToolkit().setLockingKeyState(KeyEvent.VK_CAPS_LOCK, true);

这篇关于如果尚未获得Caps Lock状态，并将其设置为on，我该怎么办？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！