Gtk screen refresh

[Jirka Pirko <j pirko mikroelektronika cz>]

hi

i have following problem:

need to append chars to GTK_ENTRY as they are coming from serial port 
(/dev/ttyS0)
i'm reading chars, appending (gtk_entry_appent_text()) them into 
GTK_ENTRY, but i CANT SEE them. (until i press key or when i put cursor 
into GTK_ENTRY)

i think i must force gtk_main loop to loop once i recieve each char but 
i don't know how to do...

it must be easy to do this but i can't find solution in documentation.

thanks for any helping

jirka