How to get the data of an activated row GTK+ C

Question

After the "row-activated" signal is activated , how to get the data of the selected row ? I'm using C language .

void on_treeview1_row_activated()
{
//I want to get the data here
}

Answer 1

The callback prototype for the row-activated signal should be:

void user_function (GtkTreeView       *tree_view,
                    GtkTreePath       *path,
                    GtkTreeViewColumn *column,
                    gpointer           user_data)

This means that you will have references to the treeview (and related model/store) and the selected path. This should be enough to extract data from the activated row.

Supposing that your model/store has as first column some integers as ID and a second column with strings:

| ID |  TEXT      |
+----+------------+
| 12 | John Doe   |
...
| 35 | Whatever   |
+----+------------|

So your callback function should be something like this:

void on_treeview1_row_activated(GtkTreeView       *treeview, 
                                GtkTreePath       *path, 
                                GtkTreeViewColumn *column,
                                gpointer userdata) {

   gint int_data;
   gchar *str_data;

   GtkTreeIter iter;
   GtkTreeModel *model = gtk_tree_view_get_model(treeview);

   if (gtk_tree_model_get_iter(model, &iter, path)) {
      gtk_tree_model_get (GTK_LIST_STORE(model), &iter, 0, &int_data, 1, &str_data, -1));
      // Here the variables int_data and str_data should be filled with
      // relevant data
   }
}