I am working on a program intended to be run by cron in unattended mode on a Raspberry Pi without GUI installed.
I started it in Windows but have now moved the sources over to Raspbian for building on that platform and it does not work as expected... If I open a terminal window inside the Raspbian GUI (I am using VNC to work in the GUI) then the test run works as expected. Right now it is just displaying the content of the directory where the data will be located using this code as a test: function TaskReadyToRun(var ID: string): boolean; var FileList: TStringList; TaskDir: string; i: integer; begin FileList := TStringList.Create; try TaskDir := DATABASEDIR + '/tasks'; FindAllFiles(FileList, TaskDir, '*.conf', false); if FileList.Count > 0 then begin for i := 0 to FileList.Count -1 do Writeln(FileList[i]); end else Writeln('No files found'); Result := (FileList.Count > 0); finally FileList.Free; end; end; In a termional window on Raspbian I get the expected output. But when I run the same in a terminal created by PuTTY on my Windows laptop this is what I see: pi@rpi4-gui:~/projects/MonitorServer $ ./ssmonitorctrl (ssmonitorctrl:5436): Gtk-WARNING **: 10:43:42.775: cannot open display: Even if I run the program and redirect output to a file I get the same error message and the listfiles.txt file is empty: pi@rpi4-gui:~/projects/MonitorServer $ ./ssmonitorctrl > listfiles.txt What is causing this strange problem? I thought that Writeln() is the way to send output to stdout, but maybe not???? -- Bo Berglund Developer in Sweden -- _______________________________________________ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus