Re: A problem about programming with Gtk+

["Vyacheslav D." <bordimida mail ru>]

On Tue, 23 Dec 2008 04:42:09 +0300, haitao_yang foxitsoftware com  
<haitao_yang foxitsoftware com> wrote:

> I followed the step of Richard's guide, everything run well, but I can
> not exit from the callback of g_idle_add correctly. Why?

From gnome help:

"Idles, timeouts, and input functions from GLib, such as g_idle_add(), are  
executed outside of the main GTK+ lock. So, if you need to call GTK+  
inside of such a callback, you must surround the callback with a  
gdk_threads_enter()/gdk_threads_leave() pair or use  
gdk_threads_add_idle_full() which does this for you"

Proof link: http://library.gnome.org/devel/gdk/stable/gdk-Threads.html

So i think you should try so:

static gboolean Result (gpointer data)
{
	gint param = (gint)data;
	gdk_threads_enter();
	GtkWidget* pDialog = gtk_message_dialog_new(GTK_WINDOW(win),
		GTK_DIALOG_MODAL,
		GTK_MESSAGE_INFO,
		GTK_BUTTONS_OK,
		"The thread result: %d ",
		param);
	gtk_dialog_run(GTK_DIALOG(pDialog));
	gtk_widget_destroy(pDialog);
	gdk_threads_leave();
	return FALSE;
}

--
Vyacheslav D.