addToEngineEventsOnce()

void fl::UINumberField::Listener::addToEngineEventsOnce ( )

inline

Definition at line 100 of file number_field.h.

                                                 {
            if (added) {
                return;
            }
            EngineEvents::addListener(this);
            added = true;
        }

References added, fl::EngineEvents::addListener(), and FL_NOEXCEPT.

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