ios_device_lockstate.m

#import <Foundation/Foundation.h>
#import <notify.h>

void test()
{
	int notify_token;
	notify_register_dispatch("com.apple.springboard.lockstate", &notify_token, dispatch_get_main_queue(), ^(int token) {
		uint64_t state = UINT64_MAX;
		notify_get_state(token, &state);
		NSLog(@"com.apple.springboard.lockstate = %llu", state);
	});
}