Command key can sometimes always be a modifier (mac) #48

roberttyson · 2015-04-01T20:39:29Z

On Mac OS-X there are times when command key is always a modifier on every key and mouse event. It might not start on the first event, but once it starts it will stay as a modifier key on every event after that until the program ends. I have not been about to figure out what triggers it to start. It seems to happen about 10-20% of the time.

I have not seen this in the windows version.

This is in version 2.0.0.

kwhat · 2015-04-05T16:27:29Z

What do you mean by "always a modifier on every key"? Is the modifier flag on but the key is not depressed? Does pressing and releasing the command key fix anything? I would try setting the logger to debug and see if anything useful comes out when the issue starts.

It could be that the modifier is getting stuck because the hook restarted, but that should correct it self. The other possibility is there maybe memory corruption on the event object, but I cant figure out how its happening. The debug log level should give me a better idea of what is going on.

roberttyson · 2015-04-06T12:57:17Z

Yes I mean that the modifier flag is on but the key is not depressed. I do not know if pressing and releasing the command key fixes everything. I will try the next time it happens.

I have turned on debug logs, but of course I have not had it happen since then, if/when it does I will add the logs.

Below is an example of the log files at WARNING level. The CaptureEvents is from my Application. This is essentially showing what information from the Event.

INFO: Library extracted successfully: /var/folders/2z/6rnkzjzj2q55s6935mr329pc0000gp/T/libJNativeHook-2.0.0.dylib (0x14E29952E7A4EF4E15530C500082348FADEA1517).

JNativeHook: Global keyboard and mouse hooking for Java.
Copyright (C) 2006-2015 Alexander Barker. All Rights Received.
https://github.com/kwhat/jnativehook/

JNativeHook is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

JNativeHook is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see http://www.gnu.org/licenses/.

Apr 06, 2015 8:32:00 AM java.lang.ClassLoader$NativeLibrary load
INFO: hook_get_auto_repeat_rate [107]: IOHIDGetParameter: 75.

Apr 06, 2015 8:32:00 AM java.lang.ClassLoader$NativeLibrary load
INFO: hook_get_auto_repeat_delay [189]: IOHIDGetParameter: 450.

Apr 06, 2015 8:32:00 AM java.lang.ClassLoader$NativeLibrary load
INFO: hook_get_pointer_acceleration_multiplier [270]: IOHIDGetAccelerationWithKey: 1.

Apr 06, 2015 8:32:00 AM java.lang.ClassLoader$NativeLibrary load
WARNING: jni_SetProperties [146]: Invalid result returned from hook_get_pointer_acceleration_threshold()!

Apr 06, 2015 8:32:00 AM java.lang.ClassLoader$NativeLibrary load
INFO: hook_get_pointer_sensitivity [356]: IOHIDGetAccelerationWithKey: 1.

Apr 06, 2015 8:32:00 AM java.lang.ClassLoader$NativeLibrary load
INFO: hook_get_multi_click_time [399]: IOHIDGetParameter: 450.

2015-32-06 08:32:39.276 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Pressed: (⇥) modifiers: []
2015-32-06 08:32:39.409 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Released: (⇥) modifiers: []
2015-32-06 08:32:39.850 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Pressed: (⇥) modifiers: []
2015-32-06 08:32:39.962 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Released: (⇥) modifiers: []
2015-32-06 08:32:40.346 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Pressed: (⇥) modifiers: []
2015-32-06 08:32:40.530 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Released: (⇥) modifiers: []
2015-32-06 08:32:41.018 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Pressed: (⇥) modifiers: []
2015-32-06 08:32:41.154 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Released: (⇥) modifiers: []
2015-32-06 08:32:41.498 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Pressed: (⇥) modifiers: []
2015-32-06 08:32:41.634 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Released: (⇥) modifiers: []
2015-32-06 08:32:43.042 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Pressed: (⇥) modifiers: []
2015-32-06 08:32:43.226 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Released: (⇥) modifiers: []
2015-32-06 08:32:43.771 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Pressed: (⇥) modifiers: []
2015-32-06 08:32:43.890 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Released: (⇥) modifiers: []
2015-32-06 08:32:44.618 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Released: (Left Meta) modifiers: [⌘]
Apr 06, 2015 8:32:45 AM org.jnativehook.GlobalScreen$NativeHookThread enable
WARNING: hook_event_proc [855]: Unhandled Darwin event! (0X1D)

Apr 06, 2015 8:32:45 AM org.jnativehook.GlobalScreen$NativeHookThread enable
WARNING: hook_event_proc [855]: Unhandled Darwin event! (0X1D)

2015-32-06 08:32:45.565 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (275,88) modifiers: [⌘]
2015-32-06 08:32:45.581 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (275,90) modifiers: [⌘]
2015-32-06 08:32:45.598 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (275,90) modifiers: [⌘]
2015-32-06 08:32:45.615 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (275,92) modifiers: [⌘]
2015-32-06 08:32:45.638 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (275,93) modifiers: [⌘]
2015-32-06 08:32:45.654 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (275,93) modifiers: [⌘]
2015-32-06 08:32:45.790 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (276,93) modifiers: [⌘]
2015-32-06 08:32:45.806 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (279,93) modifiers: [⌘]
2015-32-06 08:32:45.824 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (281,91) modifiers: [⌘]
2015-32-06 08:32:45.846 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (281,88) modifiers: [⌘]
2015-32-06 08:32:45.859 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (280,81) modifiers: [⌘]
2015-32-06 08:32:45.875 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (274,73) modifiers: [⌘]
2015-32-06 08:32:45.892 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (263,61) modifiers: [⌘]

From this point on all of the events have the modifier.

roberttyson · 2015-04-06T15:50:20Z

I got it to happen again but I did not have a large enough buffer to capture the start of the modifier key being pressed (I have changed what I am capturing and will attempt to get that).

Pressing the command key again, does seem to toggle off it always being selected. I am not sure if it helps but here are the logs from that happening:
2015-40-06 11:40:20.497 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (775,73) modifiers: [⌘]
Apr 06, 2015 11:40:20 AM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_mouse_moved [657]: Mouse moved to 1604, 461.

Apr 06, 2015 11:40:20 AM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: dispatch_event [88]: Dispatching event type 9.

2015-40-06 11:40:20.513 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (775,71) modifiers: [⌘]
Apr 06, 2015 11:40:20 AM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_mouse_moved [657]: Mouse moved to 1604, 460.

Apr 06, 2015 11:40:20 AM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: dispatch_event [88]: Dispatching event type 9.

2015-40-06 11:40:20.530 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (775,70) modifiers: [⌘]
Apr 06, 2015 11:40:21 AM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_modifier_changed [424]: Modifiers Changed for key 0X37. (0X100108)

2015-40-06 11:40:21.744 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Pressed: (Left Meta) modifiers: [⌘]
Apr 06, 2015 11:40:21 AM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_key_pressed [322]: Key 0XE5B pressed. (0X37)

Apr 06, 2015 11:40:21 AM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: dispatch_event [88]: Dispatching event type 4.

Apr 06, 2015 11:40:22 AM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_key_pressed [322]: Key 0X2E pressed. (0X8)

Apr 06, 2015 11:40:22 AM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: dispatch_event [88]: Dispatching event type 4.

Apr 06, 2015 11:40:22 AM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_key_pressed [377]: Key 0 typed. (c)

2015-40-06 11:40:22.248 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Pressed: (C) modifiers: [⌘]
Apr 06, 2015 11:40:22 AM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: dispatch_event [88]: Dispatching event type 3.

Apr 06, 2015 11:40:22 AM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_modifier_changed [424]: Modifiers Changed for key 0X37. (0X100)

Apr 06, 2015 11:40:22 AM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_key_released [413]: Key 0XE5B released. (0X37)

Apr 06, 2015 11:40:22 AM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: dispatch_event [88]: Dispatching event type 5.

2015-40-06 11:40:22.381 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Combination: image_10.png null (c) modifiers: [⌘]
2015-40-06 11:40:22.382 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Released: (Left Meta) modifiers: []
Apr 06, 2015 11:40:22 AM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_key_released [413]: Key 0X2E released. (0X8)

Apr 06, 2015 11:40:22 AM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: dispatch_event [88]: Dispatching event type 5.

2015-40-06 11:40:22.408 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Released: (C) modifiers: []
Apr 06, 2015 11:40:23 AM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_mouse_moved [657]: Mouse moved to 1604, 462.

2015-40-06 11:40:23.380 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (775,72) modifiers: []

roberttyson · 2015-04-07T19:24:58Z

Here are some logs showing what was happening when the command key was always down (this was done by holding the command key down before starting the listeners though this is not the only way this has happened). At the end I hit the command key again and it seems to stop the problem.

Apr 07, 2015 3:16:37 PM org.jnativehook.DefaultLibraryLocator getLibraries
INFO: Library extracted successfully: /var/folders/2z/6rnkzjzj2q55s6935mr329pc0000gp/T/libJNativeHook-2.0.0.dylib (0x14E29952E7A4EF4E15530C500082348FADEA1517).

JNativeHook: Global keyboard and mouse hooking for Java.
Copyright (C) 2006-2015 Alexander Barker. All Rights Received.
https://github.com/kwhat/jnativehook/

JNativeHook is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

JNativeHook is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see http://www.gnu.org/licenses/.

Apr 07, 2015 3:16:37 PM java.lang.ClassLoader$NativeLibrary load
INFO: hook_get_auto_repeat_rate [107]: IOHIDGetParameter: 75.

Apr 07, 2015 3:16:37 PM java.lang.ClassLoader$NativeLibrary load
INFO: hook_get_auto_repeat_delay [189]: IOHIDGetParameter: 450.

Apr 07, 2015 3:16:37 PM java.lang.ClassLoader$NativeLibrary load
INFO: hook_get_pointer_acceleration_multiplier [270]: IOHIDGetAccelerationWithKey: 1.

Apr 07, 2015 3:16:37 PM java.lang.ClassLoader$NativeLibrary load
WARNING: jni_SetProperties [146]: Invalid result returned from hook_get_pointer_acceleration_threshold()!

Apr 07, 2015 3:16:37 PM java.lang.ClassLoader$NativeLibrary load
INFO: hook_get_pointer_sensitivity [356]: IOHIDGetAccelerationWithKey: 1.

Apr 07, 2015 3:16:37 PM java.lang.ClassLoader$NativeLibrary load
INFO: hook_get_multi_click_time [399]: IOHIDGetParameter: 450.

Apr 07, 2015 3:16:48 PM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: hook_run [889]: Accessibility API is enabled.

Apr 07, 2015 3:16:48 PM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: hook_run [944]: CGEventTapCreate Successful.

Apr 07, 2015 3:16:48 PM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: hook_run [960]: CFMachPortCreateRunLoopSource successful.

Apr 07, 2015 3:16:48 PM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: hook_run [975]: CFRunLoopGetCurrent successful.

Apr 07, 2015 3:16:48 PM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: start_message_port_runloop [225]: Successful.

Apr 07, 2015 3:16:48 PM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: dispatch_event [88]: Dispatching event type 1.

Apr 07, 2015 3:16:49 PM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: get_event_timestamp [134]: Resynchronizing event clock. (1427896743080)

Apr 07, 2015 3:16:49 PM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_modifier_changed [424]: Modifiers Changed for key 0X37. (0X100)

Apr 07, 2015 3:16:49 PM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_key_released [413]: Key 0XE5B released. (0X37)

Apr 07, 2015 3:16:49 PM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: dispatch_event [88]: Dispatching event type 5.

2015-16-07 15:16:49.646 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Key Released: (Left Meta) modifiers: [⌘]
Apr 07, 2015 3:16:49 PM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_modifier_changed [424]: Modifiers Changed for key 0. (0X100)

Apr 07, 2015 3:16:51 PM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_mouse_moved [657]: Mouse moved to 982, 298.

2015-16-07 15:16:51.208 DEBUG [JNativeHook Dispatch Thread] CaptureEvents Mouse Moved: (775,39) modifiers: [⌘]
Apr 07, 2015 3:16:51 PM org.jnativehook.GlobalScreen$NativeHookThread enable
FINE: dispatch_event [88]: Dispatching event type 9.

Apr 07, 2015 3:16:51 PM org.jnativehook.GlobalScreen$NativeHookThread enable
INFO: process_mouse_moved [657]: Mouse moved to 982, 299.