virtual void save_settings(QSettings &settings) const;
virtual void restore_settings(QSettings &settings);
virtual void save_settings(QSettings &settings) const;
virtual void restore_settings(QSettings &settings);
* @param p The current position of the mouse cursor
* @return The sample number of the nearest level change or -1 if none
*/
* @param p The current position of the mouse cursor
* @return The sample number of the nearest level change or -1 if none
*/