tree2 = etk_tree_new();
    etk_box_append(ETK_BOX(vbox1), ETK_WIDGET(tree2), ETK_BOX_START, ETK_BOX_EXPAND_FILL, 0);
    col1 = etk_tree_col_new(ETK_TREE(tree2), "Filename", 330, 0.0);
        etk_tree_col_model_add(col1, etk_tree_model_image_new());
        etk_tree_col_model_add(col1, etk_tree_model_text_new());
    col2 = etk_tree_col_new(ETK_TREE(tree2), "Size", 50, 0.0);
        etk_tree_col_model_add(col2, etk_tree_model_text_new());
    col3 = etk_tree_col_new(ETK_TREE(tree2), "Location", 50, 0.0);
        //etk_tree_col_model_add(col3, etk_tree_model_image_new());
        etk_tree_col_model_add(col3, etk_tree_model_text_new());
    etk_tree_build(ETK_TREE(tree2));

    etk_tree_col_sort_set(col1, tree_compare_str_cb, NULL);



/* Used to sort the strings column from tree... */
int tree_compare_str_cb(Etk_Tree_Col *col, Etk_Tree_Row *row1, Etk_Tree_Row *row2, void *data)
{
    int c = 0;
    char *str1, *str2;
    void *vd;

    etk_tree_row_fields_get(row1, col, (&vd, &str1, NULL), NULL);
    etk_tree_row_fields_get(row2, col, (&vd, &str2, NULL), NULL);
    c = strcmp(str1, str2);
    if( c < 0 )
        return -1;
    else if( c > 0 )
        return 1;
    else
        return 0;
}