Re: Idle Function Not Getting Called

[Chris Vine <chris cvine freeserve co uk>]

On Sat, 5 Sep 2009 17:39:33 -0400 (EDT)
Marshall Lake <mlake mlake net> wrote:
> I tried G_PRIORITY_HIGH_IDLE with similar results ... the idle
> function is called only with the following code:
>
>      g_idle_add_full (G_PRIORITY_HIGH_IDLE, (GSourceFunc) idlefunc,
> NULL, NULL); while (gtk_events_pending ())
>          gtk_main_iteration ();
>
> If the while loop is not part of the coding then the idle function 
> (idlefunc) is not called.
>
> The difference with using G_PRIORITY_HIGH_IDLE is that some of the
> buttons inside the dialogs drawn in the idle function are not
> displayed.  But they still react to user clicks if clicked in the
> right area.  I expect this is linked to your "GDK drawing functions"
> statement above.

Then you must have some function blocking between your call to
g_idle_add_full() and control returning to the main loop.

Anything in a GTK+ signal or event handler must not block.  This means
in practice that nothing should block after your call to gtk_main().

Chris