Am Freitag, 1. September 2023, 17:57:26 CEST schrieb Tomas Hajny via fpc- pascal: > On 2023-09-01 17:39, Rainer Stratmann via fpc-pascal wrote: > > Ah, sorry. I Forgot it totally. > > > > It is a plain console program under Linux. > > > > Yes, the remaining program starts the crashing one and I would like to > > check > > the results? Yes, a run-time error was there. > > > > I start the program with a console command. > > > > An unhandled exception occured at $0814EC41: > > EAccessViolation: Access violation > > > > $0814EC41 > > ... > > ... > > ... > > > > This messages I need to read automatically > > OK. You still missed to provide information on how you start the > crashing program from the remaining program
Look above. > > I start the program with a console command. More precisely: I start the crashing program with a shell command from the remaining program. Everything runs as root. These are more or less the only programs on this (mini-itx embedded) computer running. I have full control then. > - certain approaches don't > allow simple access to the result (e.g. checking whether it's still > running or accessing the process exit code), whereas others do. However, > in general, you need to redirect the output and stderr handles (e.g. to > a pipe if doing it under Linux, but a file would do as well) and read > them from the remaining program. As an example, TProcess (in unit > Process) provides means for all of this. If I start the program with program 2>output.txt it works! Thank you. > > Tomas > > > Am Freitag, 1. September 2023, 16:13:54 CEST schrieb Tomas Hajny via > > fpc- > > > > pascal: > >> On 2023-09-01 15:43, Rainer Stratmann via fpc-pascal wrote: > >> > >> > >> Hello, > >> > >> > Where can I find the output of the error messages if a program crashes. > >> > > >> > There is another program that still is running. > >> > I want to read the error messages automatically if that is possible. > >> > >> I'm afraid that we'd need a bit more information on what is your > >> situation and what you try to achieve. In particular: > >> > >> 1) What kind of an application is your program (console, GUI, ...), > >> under which operating system? > >> > >> 2) You mention that there is another program that is still running - > >> do > >> you mean that the remaining program starts the crashing one and you > >> would like to check the results? If this is the case, how you start > >> the > >> program (Dos.Exec, SysUtils.ExecuteProcess, Process.TProcess, ...)? > >> > >> 3) What do you mean if you say "crashes" - a run-time error? Or a GUI > >> message box stating that the program crashed? Or...? > > _______________________________________________ > fpc-pascal maillist - fpc-pascal@lists.freepascal.org > https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
