c++ - Can't delete dynamic object created in WxApp from OnExit() -

i'm trying understand how wxwidgets (3.0.1) app should designed, i'm missing i'm trying doesn't work.

at basic level, have wxapp, creates wxframe, gets displayed , works fine. decided add in logger object....

i made object member of wxapp:

class inilogwx : public wxapp {     public:         virtual bool            oninit( );           virtual int             onexit( );        private:         clogstore *             cl_logstore; }; 

and initialised in wxapp::oninit()

bool inilogwx::oninit( ) {     mainframe * frame = new mainframe(_("log demo"), wxpoint(250, 250), wxsize(450, 340));     frame->show(true);     settopwindow(frame);      // create logger class     clogstore * cl_logstore = new clogstore( );      return true; } 

when application closed (closing mainframe) wxapp::onexit() fires, , thought i'd able clean memory here

int inilogwx::onexit( ) {     delete cl_logstore; // unhandled exception here due invalid pointer      return wxapp::onexit(); } 

however, appear pointer no longer valid cannot use delete assigned memory.

the manual says "onexit called after destroying application windows , controls, before wxwidgets cleanup." figured own additional attributes still available me.

is not case?

the issue creating local variable happens match name used in class.

// create logger class clogstore * cl_logstore = new clogstore( ); 

the cl_logstore here not same member variable cl_logstore. local variable. not did call delete on invalid pointer value, have memory leak.