Problem with EVENT_KEY_TYPED event on macOS Sierra 10.12

[kwhat]

Problem with EVENT_KEY_TYPED event on macOS Sierra 10.12

[kwhat]

Do you get any key typed events?

[WilixLead]

On macOS no any typed events. Btw I don't use any loggers, today I try add one, may be lib rise any error. Anyway, another users also talking about this problem. My module also open source, written for Node.js. [iohook](https://github.com/WilixLead/iohook)

[WilixLead]

Today I add logger function to my module and get some additional information.

1. I found in demo this code part and add it to my module source:

// NOTE Darwin requires that you start your own runloop from main.
CFRunLoopRun();

2. This is part of log from my module

hook_set_dispatch_proc [105]: Setting new dispatch callback to 0x101e9f8a0.
hook_run [1126]: Accessibility API is enabled.
Hook started
hook_run [1173]: CGEventTapCreate Successful.
hook_run [1179]: CFMachPortCreateRunLoopSource successful.
hook_run [1184]: CFRunLoopGetCurrent successful.
hook_run [1197]: CFRunLoopObserverCreate successful.
hook_run [1216]: dlsym(RTLD_DEFAULT, dispatch_get_main_queue): symbol not found. <----
hook_run [1222]: Failed to locate dispatch_sync_f() or dispatch_get_main_queue()! <----
hook_run [1226]: Falling back to runloop signaling. <----
start_message_port_runloop [274]: Successful.
dispatch_event [114]: Dispatching event type 1.
process_key_pressed [373]: Key 0X35 pressed. (0X2C)
dispatch_event [114]: Dispatching event type 4. <---- Event dispatched
process_key_pressed [427]: Failed to signal RunLoop main! <---- This is error
/process_key_released [475]: Key 0X35 released. (0X2C) <---- Another event dispatched successful 
dispatch_event [114]: Dispatching event type 5.
process_key_pressed [373]: Key 0X34 pressed. (0X2F)

Looks like I skip something for macOS, but I don't understand, what.
Thanks!

[WilixLead]

any news?

[kwhat]

Hey, sorry for the delay. The problem is related to late loading some apple queue functionality. (https://developer.apple.com/library/content/documentation/General/Conceptual/ConcurrencyProgrammingGuide/OperationQueues/OperationQueues.html)

How are you currently compiling and linking? The library code is looking to define https://developer.apple.com/reference/dispatch/1453123-dispatch_sync_f from dlsym(RTLD_DEFAULT, "dispatch_sync_f"); which should find that function in the default library search. Is your lib path correct for your use case? You maybe able to compile with -D USE_WEAK_IMPORT=1 if you dont need old mac support (10.5 era iirc).

[WilixLead]

Thank you for answer. But I can't find way for include Dispatch framework. I am not a C++ coder :) And I don't have good understanding how is MacOS frameworks work.
But I use examples in my CMakeLists.txt code like:

find_library(FRAMEWORK_IOKIT IOKit)
find_library(FRAMEWORK_Carbon Carbon)
target_link_libraries(${PROJECT_NAME} ${FRAMEWORK_IOKIT} ${FRAMEWORK_Carbon})

I try to add find_library(FRAMEWORK_Dispatch Dispatch) and change line
target_link_libraries(${PROJECT_NAME} ${FRAMEWORK_IOKIT} ${FRAMEWORK_Carbon} ${FRAMEWORK_Dispatch})

But it not help's... May be I skip something?