gdk_spawn_on_screen

function gdk_spawn_on_screen(

  screen: PGdkScreen;

  working_directory: Pgchar;

  argv: PPgchar;

  envp: PPgchar;

  flags: TGSpawnFlags;

  child_setup: TGSpawnChildSetupFunc;

  user_data: gpointer;

  child_pid: Pgint;

  error: PPGError

):gboolean;