This functions inserts into the control the character which would have been
inserted if the given key event had occured in the text control. The
{\it event} object should be the same as the one passed to {\tt EVT\_KEY\_DOWN}
This functions inserts into the control the character which would have been
inserted if the given key event had occured in the text control. The
{\it event} object should be the same as the one passed to {\tt EVT\_KEY\_DOWN}