Mac鼠标/触控板的编程速度

本文介绍了Mac鼠标/触控板的编程速度的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我正在尝试更改我正在处理的应用程序的鼠标跟踪速度(注意:不是加速).我到处搜索了一种方法来执行此操作，但是找不到任何东西.我怀疑这与我在IOKit/hidsystem Framework上的此函数中提供的值有关:

I'm trying to change the mouse tracking speed (Notice: Not acceleration) for an application I'm working on. I've searched everywhere for a way to do this, but couldn't find anything.I suspect that has to do with the value I give in this function on the IOKit/hidsystem Framework:

IOHIDSetAccelerationWithKey(handle, CFSTR(kIOHIDMouseAccelerationType), mouseAcceleration);

由于mouseAcceleration是这个值，我怀疑有一个同时定义加速度和速度的十六进制值.

Being mouseAcceleration the value, I suspect there is a hex value that defines both acceleration and speed.

有人遇到这个问题可以帮助我吗?

Does anyone came across this problem and could help me?

预先感谢

推荐答案

迅捷的工作示例:

func getAcceleration() -> Double {
    var speed:Double = 0
    IOHIDGetAccelerationWithKey(NXOpenEventStatus(), kIOHIDTrackpadAccelerationType, &speed)
    return speed
}

func setAcceleration(_ speed: Double) {
    IOHIDSetAccelerationWithKey(NXOpenEventStatus(), kIOHIDTrackpadAccelerationType, speed)
}

来源: http://lists.apple.com/archives/usb/2004/Aug/msg00056.html

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