For combo boxes that are created with an entry (See GtkComboBoxText:has-entry).
A signal which allows you to change how the text displayed in a combo box's
entry is displayed.
Connect a signal handler which returns an allocated string representing
@path. That string will then be used to set the text in the combo box's entry.
The default signal handler uses the text from the GtkComboBoxText::entry-text-column
model column.
Here's an example signal handler which fetches data from the model and
displays it in the entry.
|[<!-- language="C" -->
static gchar*
format_entry_text_callback (GtkComboBoxText *combo,
const gchar *path,
gpointer user_data)
{
GtkTreeIter iter;
GtkTreeModel model;
gdouble value;
For combo boxes that are created with an entry (See GtkComboBoxText:has-entry).
A signal which allows you to change how the text displayed in a combo box's entry is displayed.
Connect a signal handler which returns an allocated string representing @path. That string will then be used to set the text in the combo box's entry. The default signal handler uses the text from the GtkComboBoxText::entry-text-column model column.
Here's an example signal handler which fetches data from the model and displays it in the entry. |[<!-- language="C" --> static gchar* format_entry_text_callback (GtkComboBoxText *combo, const gchar *path, gpointer user_data) { GtkTreeIter iter; GtkTreeModel model; gdouble value;
model = gtk_combo_box_get_model (combo);
gtk_tree_model_get_iter_from_string (model, &iter, path); gtk_tree_model_get (model, &iter, THE_DOUBLE_VALUE_COLUMN, &value, -1);
return g_strdup_printf ("%g", value); } ]|