-\twocolitem{{\tt wxMOUSE\_BTN\_MIDDLE}}{check if left button was pressed}
-\twocolitem{{\tt wxMOUSE\_BTN\_RIGHT}}{check if left button was pressed}
+\twocolitem{{\tt wxMOUSE\_BTN\_MIDDLE}}{check if middle button was pressed}
+\twocolitem{{\tt wxMOUSE\_BTN\_RIGHT}}{check if right button was pressed}