\rtfsp\helpref{wxWindow::OnMouseEvent}{wxwindowonmouseevent}.
Most modern applications will have an on-line, hypertext help system; for this, you
-need wxHelp and the \helpref{wxHelpControllerBase}{wxhelpcontrollerbase} class to control
-wxHelp. To add sparkle, you might use the wxToolBar class (documented separately)
+need wxHelp and the \helpref{wxHelpController}{wxhelpcontroller} class to control
+wxHelp. To add sparkle, you might use the wxToolBar class
which makes heavy use of the \helpref{wxBitmap}{wxbitmap}.
GUI applications aren't all graphical wizardry. List and hash table needs are