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I need to write something using Cocoa to surface raw mouse movement data. Optimally, the app would just be a little daemon that would run, passing the data to a socket server which another application could tap into to gain access to the events.
Can anyone point me in the right direction with regard to approach and tools? I am not even sure where to begin with this right now.
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Companies use security measures called behavioral biometrics that you likely don't know about, like tracking your mouse movements and the typical behavior in your accounts, measuring the angle you typically use your device, and measuring how fast you swipe around an app.
Mouse tracking (also known as cursor tracking) is the use of software to collect users' mouse cursor positions on the computer.
Hundreds of the world's top websites routinely track a user's every keystroke, mouse movement and input into a web form – even before it's submitted or later abandoned, according to the results of a study from researchers at Princeton University.
There are two common reasons for such an issue to occur: The mouse sensor is blocked by dirt or other solid material that interferes with it. The mouse needs to reset its surface calibration.
The other simple way to do this is to add a global event monitor (10.6 only, however):
id eventHandler = [NSEvent addGlobalMonitorForEventsMatchingMask:NSMouseMovedMask handler:^(NSEvent * mouseEvent) {
NSLog(@"Mouse moved: %@", NSStringFromPoint([mouseEvent locationInWindow]));
}];
Then when you're done tracking, you do:
[NSEvent removeMonitor:eventHandler];
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