Re: gtk threads

[Xiong Huan <huan xiong motorola com>]

Can anybody help to explain a bit why it is necessary to call 
gtk_main_iteration_do() in source_cb()? I think the customized event source 
in above example and the built-in event source for X events have the same 
priorities and they both have the chances to be executed when arrived. 
However, if I commented out that line, the lable doesn't appeared. 

BTW, it is not necessary to call gdk_threads_enter/leave in source_cb() since 
source_db is actually called in event dispatching thread.

Thanks.

On Wednesday 14 July 2004 22:50, Todd Fisher wrote:
> I left one other part out you need to also modify the source_cb
> function:
>
> static gboolean
> source_cb(gpointer data)
> {
>     g_printf("i:%d\n",*((gint*)data));
>     gdk_threads_enter();
>     gtk_main_iteration_do( FALSE );
>     gdk_threads_leave();
>     return TRUE;
> }
>
> hope this helps :-)
>
> Todd Fisher wrote:
> > you need to initialize the gdk threads:
> >
> > int main( int argc, char *argv[] )
> > {
> >    g_thread_init(NULL);
> >    gdk_threads_init();
> >    gtk_init(&argc,&argv);
> > ...
> >
> >    gdk_threads_enter();
> >    gtk_main();
> >    gdk_threads_leave();
> > }
> >
> > Russell Shaw wrote:
> > > Hi,
> > > This test prog counts to 20 on the terminal window and should show
> > > a GtkLabel "test" displayed in a GtkWindow.
> > >
> > > With the thread code commented out as below, "test" is shown correct.
> > > When the thread is allowed to run, the label is not shown. Why so?
> > >
> > > Snip
> >
> > _______________________________________________
> > gtk-app-devel-list mailing list
> > gtk-app-devel-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
>
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