void on_view_zoomToFitAfterAcq_changed(int state);
void on_view_colouredBG_changed(int state);
void on_view_stickyScrolling_changed(int state);
void on_view_zoomToFitAfterAcq_changed(int state);
void on_view_colouredBG_changed(int state);
void on_view_stickyScrolling_changed(int state);