Re: [Vala] Getting programs output

[David Keijser <keijser gmail com>]

Hi.
it should only be a matter of setting up the UI and then read from
output_fd. for this to work nicely with gtk+ and so on you should do
the reading in a callback. to create this callback you create a
Glib.Source and the you add your file for polling with add_poll() .

alternatively, you could use vte which is a complete terminal emulator widget.

2009/7/29 Arkadi Viner <arkashkin gmail com>:
> Hello.
> I am really new to VALA and my Linux programing experience is very small.
> I am writing some code to execute a program from my program, and i want to
> know how can I upgrade my code so it will update
> some textbox on a real-time with the executed program's std_output..
>
> I use this function to execute the another program:
>
> public static void execProgram()
>   {
>          string[] argv = new string[1];
>             argv[0] = "/home/arkadi/tt";
>             //argv[1] = null;
>
>             Pid child_pid;
>             int input_fd;
>             int output_fd;
>             int error_fd;
>             try {
>             Process.spawn_async_with_pipes(
>                 command_line,
>                 argv, //argv
>                 null,   // environment
>                 SpawnFlags.SEARCH_PATH,
>                 null,   // child_setup
>                 out child_pid,
>                 out input_fd,
>                 out output_fd,
>                 out error_fd);
>            }
>            catch (Error e) {
>          stderr.printf ("Could not load UI: %s\n", e.message);
>          }
>   }
>
> So I need a little bit help :-)
>
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