Re: [gtkmm] How to force widget draw

[Paul Davis <paul linuxaudiosystems com>]

>I've a Gtk::Statusbar widget that I use to display status info text to the 
>user (what an strange use :-)).
>The problem that I'm having is that I push a text to the Gtk::Statusbar just 
>before a call to a function that make a "hard" process (lot of CPU use).
>The text is displayed after the "hard" process functions ends.
>I've tried to force the graphic server to draw the statusbar by calling the 
>Gtk::Widget->show and Gtk::Widget->show_now function of the statusbar, but 
>nothing.
>How can I show the text to the statusbar before the "hard" process?

  gtk_widget_queue_draw (widget);
  gtk_main_iteration();

note that this method can be hazardous: if there are events pending,
then you will handle them before returning to your code. this can
severely mess up some kinds of code.

--p