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Old 05-06-2005, 07:17 PM   #1
Li...
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Registered: Feb 2004
Posts: 31

Rep: Reputation: 15
GTK: how to write into a clist?


Hi there,

with glade-2 I've created an application which should show translated data into a clist. Therefore I use several buttons to control the clist. One of them is the start/stop button and a clear button. When the start/stop is pushed I want to write some text ("Hello World") into the clist. Currently I want to do this directly by the start-stop-function. In the future, the start-stop function reveices and translate the data to text.

I think that there's a problem using the g_signal_connect functions. I'm not sure.

The code produced by glade:

interface.c
-----------
Code:
GtkWidget* create_main_window (void)
{
  GtkWidget *clist1;
  GtkWidget *startstop;
  GtkWidget *clr;

  startstop = gtk_label_new_with_mnemonic (_("Start\nStop"));
  gtk_widget_show (startstop);
  gtk_box_pack_start (GTK_BOX (hbox21), startstop, FALSE, FALSE, 3);

  gtk_widget_show (clr);
  gtk_table_attach (....);
  gtk_container_set_border_width (....);

  clist1 = gtk_clist_new (9);
  gtk_widget_show (clist1);
  gtk_container_add (GTK_CONTAINER (scrolledwindow2), clist1);

  ...several clist options here...

  g_signal_connect ((gpointer) startstop, "clicked",
                    G_CALLBACK (on_start_stop_clicked),
                    NULL);

  g_signal_connect_swapped ((gpointer) clr, "clicked",
                            G_CALLBACK (on_clr_clicked),
                            GTK_OBJECT (clr_clicked_object));

  GLADE_HOOKUP_OBJECT (main_window, clist1, "clist1"); // ?????
}
callbacks.c
-----------
Code:
void on_start_stop_clicked (GtkButton *button, gpointer user_data)
{
  gtk_clist_set_text((GtkCList*)user_data, 1, 1, "Hello World");
}

void on_clr_clicked(GtkButton *button, gpointer user_data)
{
  gtk_clist_clear((GtkCList*)user_data);
}
The messages I receive when the program is running in a terminal window are:
Quote:
(prog:22717): Gtk-CRITICAL **: file gtkclist.c: line 2243 (gtk_clist_set_text): assertion `GTK_IS_CLIST (clist)' failed

(prog:22717): Gtk-CRITICAL **: file gtkclist.c: line 2701 (gtk_clist_clear): assertion `GTK_IS_CLIST (clist)' failed
How can I solve this???????

Li

Last edited by Li...; 05-06-2005 at 07:19 PM.
 
  


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