One object of this class can be created, and its implementation depends upon the C++ application hosting the wxCLIPS environment.
bool ( on-char-hook wxKeyEvent event)
Under Windows only, all key strokes going to a dialog box or frame can be intercepted before being passed on for normal processing. This function takes the window id and event id, and should return 1 to override further processing, or 0 to do default processing. If the function returns 0, the on-char-hook message will be sent to the active window. See also Key event.