a wxEVT\_HELP event if the user clicked on an application window. {\it Note} that this is an extended
style and must be set by calling \helpref{SetExtraStyle}{wxwindowsetextrastyle} before Create is called (two-step construction).
You cannot use this style together with wxMAXIMIZE\_BOX or wxMINIMIZE\_BOX, so
a wxEVT\_HELP event if the user clicked on an application window. {\it Note} that this is an extended
style and must be set by calling \helpref{SetExtraStyle}{wxwindowsetextrastyle} before Create is called (two-step construction).
You cannot use this style together with wxMAXIMIZE\_BOX or wxMINIMIZE\_BOX, so