替换已弃用的NXOpenEventStatus吗? [英] Replacement for deprecated NXOpenEventStatus?
问题描述
我需要获得OSX 10.13上鼠标的跟踪速度.我在互联网上找到了此代码,但不建议使用NXOpenEventStatus(IOHIDGetAccelerationWithKey也是如此),还有其他方法吗?
I need to get the tracking speed of the mouse on OSX 10.13. I found this code on the internet but NXOpenEventStatus is deprecated (as is IOHIDGetAccelerationWithKey), is there an alternative way?
#include <stdio.h>
#include <IOKit/IOKitLib.h>
#include <IOKit/hidsystem/IOHIDLib.h>
#include <IOKit/hidsystem/IOHIDParameter.h>
#include <IOKit/hidsystem/event_status_driver.h>
int main()
{
kern_return_t kr;
double trackpadAcceleration, mouseAcceleration;
NXEventHandle h = 0;
h = NXOpenEventStatus();
if (h == nil)
return -1;
kr = IOHIDGetAccelerationWithKey( h, CFSTR(kIOHIDMouseAccelerationType), &mouseAcceleration);
return 0;
}
推荐答案
由于NXOpenEventStatus
和IOHIDGetAccelerationWithKey
都是开源IOKit发行版的一部分,因此您可以
Since NXOpenEventStatus
and IOHIDGetAccelerationWithKey
are both part of the open-source IOKit distribution, you can look at how they're implemented. It turns out we can do what those functions do, using only non-deprecated functions.
要将其精简到最低限度,您可以像以下那样获得有关HID系统属性的字典:
To boil it down to the bare minimum, you can get a dictionary of the HID system's properties like this:
#import <Foundation/Foundation.h>
#import <IOKit/hidsystem/IOHIDLib.h>
int main(int argc, const char * argv[]) {
@autoreleasepool {
io_service_t service = IORegistryEntryFromPath(kIOMasterPortDefault, kIOServicePlane ":/IOResources/IOHIDSystem");
CFDictionaryRef parameters = IORegistryEntryCreateCFProperty(service, CFSTR(kIOHIDParametersKey), kCFAllocatorDefault, kNilOptions);
NSLog(@"%@", parameters);
IOObjectRelease(service);
}
return 0;
}
输出(对于我,在macOS 10.13.4上为我):
Output (for me on macOS 10.13.4):
2018-04-05 17:06:55.560590-0500 accel[11924:131983] {
ActuateDetents = 1;
Clicking = 0;
DragLock = 0;
Dragging = 0;
EjectDelay = 0;
FirstClickThreshold = 1;
ForceSuppressed = 0;
HIDClickSpace = (
5,
5
);
HIDClickTime = 500000000;
HIDDefaultParameters = 1;
HIDF12EjectDelay = 250;
HIDFKeyMode = 1;
HIDInitialKeyRepeat = 250000000;
HIDKeyRepeat = 33333333;
HIDKeyboardModifierMappingPairs = (
);
HIDMouseAcceleration = 98304;
HIDMouseKeysOptionToggles = 0;
HIDPointerAcceleration = 45056;
HIDPointerButtonMode = 2;
HIDScrollAcceleration = 20480;
HIDScrollZoomModifierMask = 262144;
HIDSlowKeysDelay = 0;
HIDStickyKeysDisabled = 0;
HIDStickyKeysOn = 0;
HIDStickyKeysShiftToggles = 0;
HIDTrackpadAcceleration = 57344;
HIDWaitCursorFrameInterval = 16666667;
JitterNoClick = 1;
JitterNoMove = 1;
MouseButtonDivision = 55;
MouseButtonMode = TwoButton;
MouseHorizontalScroll = 1;
MouseMomentumScroll = 1;
MouseOneFingerDoubleTapGesture = 0;
MouseTwoFingerDoubleTapGesture = 0;
MouseTwoFingerHorizSwipeGesture = 0;
MouseVerticalScroll = 1;
"OutsidezoneNoAction When Typing" = 1;
"PalmNoAction Permanent" = 1;
"PalmNoAction When Typing" = 1;
SecondClickThreshold = 1;
"Trackpad Jitter Milliseconds" = 192;
TrackpadCornerSecondaryClick = 0;
TrackpadFiveFingerPinchGesture = 0;
TrackpadFourFingerHorizSwipeGesture = 2;
TrackpadFourFingerPinchGesture = 0;
TrackpadFourFingerVertSwipeGesture = 0;
TrackpadHandResting = 1;
TrackpadHorizScroll = 1;
TrackpadMomentumScroll = 1;
TrackpadPinch = 1;
TrackpadRightClick = 1;
TrackpadRotate = 1;
TrackpadScroll = 1;
TrackpadThreeFingerDrag = 0;
TrackpadThreeFingerHorizSwipeGesture = 2;
TrackpadThreeFingerTapGesture = 0;
TrackpadThreeFingerVertSwipeGesture = 0;
TrackpadThreeFingersRightClick = 0;
TrackpadTwoFingerDoubleTapGesture = 1;
TrackpadTwoFingerFromRightEdgeSwipeGesture = 0;
TwofingerNoAction = 1;
USBMouseStopsTrackpad = 0;
"Use Panther Settings for W" = 0;
UserPreferences = 1;
version = 1;
}
Program ended with exit code: 0
kIOHIDMouseAccelerationType
常数的值为HIDMouseAcceleration
.我还在那里看到HIDPointerAcceleration
和HIDTrackpadAcceleration
.也有kIOHID...
常量.
The kIOHIDMouseAccelerationType
constant has value HIDMouseAcceleration
. I also see HIDPointerAcceleration
and HIDTrackpadAcceleration
in there. There are kIOHID...
constants for those too.
这篇关于替换已弃用的NXOpenEventStatus吗?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!