如何使用Quartz事件处理鼠标单击? [英] How do I process a mouse click using Quartz events?

问题描述

我有一个CGEventTap，我想观察并处理所有系统鼠标单击事件.检测鼠标单击事件很容易，但是我不希望系统的其余部分处理某些单击.而且我不知道怎么做.

I have a CGEventTap and I would like to observe and process all system mouse click events. Detecting a mouse click event is easy, but I don’t want some of the clicks to get processed by the rest of the system. And I can’t figure out how.

系统仅发送低级事件，例如mouseUp，mouseDown，mouseDragged等.收到mouseDown事件时，我不知道它是否是鼠标单击的一部分，可能是拖动事件.我必须等待以下事件-如果是mouseUp，请点击.但是，如果我想自己处理点击并阻止其继续进入事件队列的其余部分，我就不能简单地窃取mouseUp事件，因为先前的mouseDown已发送.

The system only sends low-level events like mouseUp, mouseDown, mouseDragged and so on. When I receive a mouseDown event, I don’t know if it’s a part of a mouse click yet, could be a drag event. I have to wait for the following event – if it’s a mouseUp, I have a click. But if I want to process the click myself and keep it from going down the rest of the event queue, I can’t simply steal the mouseUp event, as the previous mouseDown was already sent.

我以为我可以延迟mouseDown事件，并且只在收到相应的mouseUp之后才发送它，但这感觉不对，我不想因为我的应用而延迟所有系统mouseDown事件.我想念什么吗?

I thought I could delay the mouseDown event and only send it later after receiving the corresponding mouseUp, but that feels wrong, I don’t want to delay all system mouseDown events just because of my application. Am I missing something?

推荐答案

您认为正确的内容.您必须将鼠标按下事件延迟等于鼠标双击速度，则应为100-500毫秒左右.例如，用户不会注意到100毫秒的延迟.理想情况下，您应该使用Mac OS X中的值鼠标设置以获得良好的用户体验.

What you thought is actually right. You have to postpone mouse down event for the time interval equal to a mouse double click speed, that should be around 100-500 milliseconds. User will not notice a 100 millisecond delay, for example. Ideally, you should a value from Mac OS X mouse settings to make a good user experience.

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