+/**
+ * modest_header_view_get_sort_column_id:
+ * @self: a #ModestHeaderView
+ * @type: #TnyFolderType type
+ *
+ * Gets the selected logical columnd id for sorting.
+ **/
+gint
+modest_header_view_get_sort_column_id (ModestHeaderView *self, TnyFolderType type);
+
+/**
+ * modest_header_view_get_sort_type:
+ * @self: a #ModestHeaderView
+ * @type: #TnyFolderType type
+ *
+ * Gets the selected sort type.
+ **/
+GtkSortType
+modest_header_view_get_sort_type (ModestHeaderView *self, TnyFolderType type);
+
+/**
+ * modest_header_view_set_sort_params:
+ * @self: a #ModestHeaderView
+ * @sort_colid: logical column id to sort
+ * @sort_type: #GtkSortType sort type
+ * @type: #TnyFolderType type
+ *
+ * Sets the logical columnd id and sort type for sorting operations.
+ **/
+void
+modest_header_view_set_sort_params (ModestHeaderView *self, guint sort_colid, GtkSortType sort_type, TnyFolderType type);
+
+/**
+ * modest_header_view_set_sort_params:
+ * @self: a #ModestHeaderView
+ * @sort_colid: logical column id to sort
+ * @sort_type: #GtkSortType sort type
+ *
+ * Sorts headers treeview by logical column id, @sort_colid, using a
+ * @sort_type sorting method. In addition, new headder settings will be
+ * stored in @self object.
+ **/
+void
+modest_header_view_sort_by_column_id (ModestHeaderView *self,
+ guint sort_colid,
+ GtkSortType sort_type);
+
+