Method add

modules/gui/gui/src/framework/timer_manager.cpp:67–74

add/remove

// add/remove
TimerHandle TimerManager::add(Timer timer)
{
    return _timers.add({ std::move(timer),
                         _cur_time_stamp,
                         -1,
                         0 })
    .index();
}
void TimerManager::remove(TimerHandle handle)
{
    return _timers.remove_at(handle);