[SLUG] ask fprintf

[henry]

Dear List :   I am a gcc newbie. A kind member of list taught me use "fprintf(stderr,"file:%s  line:%d  function:%s", __FILE__,__LINE__,__FUNCTION__) ; " to print message of currently_running_code (which file ? which line ? which function ?) .   but I can only get those trace_messages by typing > gdb my_prgram_name > run    How do I print those trace_messages on screen after execution of the program (attentation: my program is a VGA-program) ?                                                                                   Thanks in advance ! Henry