Gtk.ComboBox::format-entry-text
Description: Reference for signal Gtk.ComboBox::format-entry-text

### Signal

# Gtk ComboBox::format-entry-text

#### Declaration

    gchar*
    format_entry_text (
      GtkComboBox* self,
      gchar* path,
      gpointer user_data
    )

#### Description [src]

Emitted to allow changing how the text in a combo box’s entry is displayed.

See `GtkComboBox:has-entry`.

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 `GtkComboBox:entry-text-column` model column.

Here’s an example signal handler which fetches data from the model and displays it in the entry.

    static char *
    format_entry_text_callback (GtkComboBox *combo,
                                const char *path,
                                gpointer     user_data)
    {
      GtkTreeIter iter;
      GtkTreeModel model;
      double       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);
    }

Default handler: The default handler is called after the handlers added via `g_signal_connect()`.

#### Parameters

`path`

  Type: `gchar*`

  The `GtkTreePath` string from the combo box’s current model to format text for.

  The data is owned by the caller of the function.
  The value is a NUL terminated UTF-8 string.

#### Return value

Type: `gchar*`

A newly allocated string representing `path` for the current `GtkComboBox` model.

The caller of the function takes ownership of the data, and is responsible for freeing it.
The value is a NUL terminated UTF-8 string.