Re: GdkEventKey --> utf-8 ?

[Joerg Anders <jan informatik tu-chemnitz de>]

On Thu, 10 Sep 2009, Tor Lillqvist wrote:

> Because there the inserted text goes through lots of other code than
> just directly mapping from key presses to characters, which is never
> going to work in general.

... but is not as complicated as this text suggests. For all
those who (will) have the same problem I post a working code snippet:

-----------------------------------------------------------------------
  static GtkIMContext *im_context;

  static void gtk_entry_commit_cb (GtkIMContext *context, const gchar  *str, gpointer data) {
	printf("TEXT = %s\n", str); fflush(stdout);
  }

  gboolean key_press_handler(GtkWidget *widget,  GdkEventKey *event, gpointer  data)  {
	gtk_im_context_filter_keypress(im_context, event);
	return FALSE;
  }

  int main(int argc, char *argv[]) {
	GtkWidget *the_window;
	gtk_init (&argc, &argv);
	the_window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
	g_signal_connect (the_window, "key-press-event", G_CALLBACK (key_press_handler), NULL);
	im_context = gtk_im_context_simple_new ();
	g_signal_connect (im_context, "commit", G_CALLBACK (gtk_entry_commit_cb), NULL);
	gtk_widget_show_all(the_window);
	gtk_main();
	return 0;
  }

-------------------------------------------------------
> You need to read up on GtkIMContext, I think.

Indeed, and the same hint is on GdkEventKey manual page:

http://library.gnome.org/devel/gdk/stable/gdk-Event-Structures.html#GdkEventKey

  "The only correct way to handle text input of text is using input
  methods (see GtkIMContext), ..."

But I think only a few programmers can convert this hint into
a working program.

--
J.Anders, GERMANY, TU Chemnitz, Fakultaet fuer Informatik