8/17/2023 0 Comments Disable mouse accelerationMac OS X stores mouse and trackpad settings independently. To revert back to Apple default settings, just open the Mouse pane of System Preferences and change the Tracking Speed to anything, then quit System Preferences. After that, the pixels pointer moves / meters mouse moved ratio is constant but unfortunately not adjustable. I found I had to log out and back in again for it to take effect. In the Terminal, that seems to disable acceleration and set the mouse tracking speed to some constant predefined value which you can't change. However, if you set it to -1 by typing defaults write. Values of 0 ~ 3 won't disable acceleration, therefore. Normal values are 0 ~ 3, which can be set by moving the 'Tracking Speed' slider in the Mouse pane of System Preferences. GlobalPreferences Īt the Terminal prompt. To read its current value type defaults read. There's a hidden preference that you can change from the Terminal. For all other discussion, go have it here on the superuser site where it belongs. Therefore the question above is about how to tackle this if you want to code your own mouse drivers. (See the first sentence of this question.) Here I'm trying to create my own solution, so to speak, using - I don't know - some HID API? A driver? A solution on the lines of "open current user's prefs file and change this setting to this" should probably be posted on the other question, but note that such a solution probably doesn't exist.Ī lot of my reputation on StackOverflow has come from people voting up this answer, which I wrote way back before I realised that there are several stack exchange websites and that StackOverflow is for programming questions and answers only. Thanks in advance.Įdit: Although I've asked both questions to solve the same problem, this is the programmatical counterpart to the other one. I know the question is a bit open but I don't even know what kind of a solution could work. So anything is appreciated, really ("can't distribute drivers without certificate from Apple") but some documentation/reference would get me a long way ("Darwin's Next Generation Mouse Curve Editing API and Examples"). I'm a fairly experienced C programmer, both in user and kernel space (in Linux and Windows), but know next to nothing about Mac OS X or Darwin.
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