Re: show the content of a dialog window

[John Cupitt <john cupitt ng-london org uk>]

soudant cogenit fr wrote:

> I have made an application with Glade using GTK. The
> GUI application loads a text application in a child
> process. Both are communicating via pipes.
> The standard input and output of the text application
> are redirect in the pipes.

> When this window appears, it is blank. They are no
> label, no button, and the text entry is not usable.
> What's happened ?

Hi Sandrine,

I've not read your code very carefully, but it sounds like you're 
blocking the GUI process on read() on your pipe.

The best technique is to use gtk_input_add_full(). You make a pipe, use 
gtk_input_add_full() to tell GTK about it, and then return to 
gtk_main(). When data arrives on the pipe, GTK will automatically call 
one of your functions with the new characters.

Look at these pages:

http://developer.gnome.org/doc/API/glib/glib-io-channels.html

This is the core functionally.

http://developer.gnome.org/doc/API/gtk/gtk-general.html#GTK-INPUT-ADD-FULL

This is an easy to use layer over g_io_channel.

Hope I've understood,

John

(you should not mail gtk-devel-list .. it's only for people working on 
the inside of GTK)