Method removeChangedCallback

src/fl/ui/button.h:112–112

Per-list removers. Each callback list maintains its own ID counter, so an id returned by onChanged()/onPressed()/onReleased() is only meaningful to its originating list — use the matching remover here. Note: onClicked() also registers into the changed-callbacks list, so ids returned by onClicked() are removed via removeClickedCallback (an alias for removeChangedCallback).

    // ids returned by onClicked() are removed via removeClickedCallback
    // (an alias for removeChangedCallback).
    void removeChangedCallback(int id) FL_NOEXCEPT { mCallbacks.remove(id); }
    void removeClickedCallback(int id) FL_NOEXCEPT { mCallbacks.remove(id); }
    void removePressedCallback(int id) FL_NOEXCEPT { mPressCallbacks.remove(id); }
    void removeReleasedCallback(int id) FL_NOEXCEPT { mReleaseCallbacks.remove(id); }