add: gtk_tree_view_expand_all(GTK_TREE_VIEW(m_directory_tree));
context: gboolean update_directory_listing (GtkWidget *widget,				   GdkEvent *event,				   gpointer data) {  //  	HTREEITEM hItem[5],rItem;  GtkTreeModel* model;  if(CheckCameraOpen()==FALSE)    return FALSE;  EnableControls(FALSE);  model = create_model();    Log("model created.");  FreeAllocatedFiles(root_directory);  root_directory = NULL;  gtk_tree_view_set_model(GTK_TREE_VIEW(m_directory_tree), GTK_TREE_MODEL(model));  //  gtk_object_unref(GTK_TREE_MODEL(model));  //gtk_tree_selection_set_mode(gtk_tree_view_get_selection(GTK_TREE_VIEW(m_directory_tree)), GTK_SELECTION_NONE);  EnableControls(TRUE);  return TRUE;}