spawn_with_callbacks

function spawn_with_callbacks(

  working_directory: Pgchar;

  command_line: Pgchar;

  argv: PPgchar;

  envp: PPgchar;

  spawn_flags: TSpawnFlags;

  stdin_cb: TGIOFunc;

  stdin_data: gpointer;

  stdout_cb: TSpawnReadFunc;

  stdout_data: gpointer;

  stdout_max_length: gsize;

  stderr_cb: TSpawnReadFunc;

  stderr_data: gpointer;

  stderr_max_length: gsize;

  exit_cb: TGChildWatchFunc;

  exit_data: gpointer;

  var child_pid: TGPid;

  var error: PGError

):gboolean;