- header_view = modest_main_window_get_child_widget ((ModestMainWindow *) source,
- MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
+ header_view = MODEST_HEADER_VIEW (modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (source),
+ MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW));