sample.cpp:33:25: error: expected ';' at end of member declaration
     virtual bool OnInit() wxOVERRIDE;
                         ^
                          ;
sample.cpp:33:27: error: 'wxOVERRIDE' does not name a type; did you mean 'wxEVT_IDLE'?
     virtual bool OnInit() wxOVERRIDE;
                           ^~~~~~~~~~
                           wxEVT_IDLE