diff --git a/gdk/gdk-api-2.8.raw b/gdk/gdk-api-2.8.raw
index f7f1417ea..f9682b09b 100644
--- a/gdk/gdk-api-2.8.raw
+++ b/gdk/gdk-api-2.8.raw
@@ -2826,7 +2826,7 @@
         </parameters>
       </method>
       <method name="Copy" cname="gdk_color_copy">
-        <return-type type="GdkColor*" />
+        <return-type type="GdkColor*" owned="true" />
       </method>
       <method name="Equal" cname="gdk_color_equal">
         <return-type type="gboolean" />
@@ -3283,7 +3283,7 @@
       <field name="Rects" cname="rects" type="GdkRegionBox*" />
       <field name="Extents" cname="extents" type="GdkRegionBox" />
       <method name="Copy" cname="gdk_region_copy">
-        <return-type type="GdkRegion*" />
+        <return-type type="GdkRegion*" owned="true" />
       </method>
       <method name="Destroy" cname="gdk_region_destroy">
         <return-type type="void" />
@@ -3910,7 +3910,7 @@
     </class>
     <class name="Event" cname="GdkEvent_">
       <method name="Copy" cname="gdk_event_copy" shared="true">
-        <return-type type="GdkEvent*" />
+        <return-type type="GdkEvent*" owned="true" />
         <parameters>
           <parameter type="GdkEvent*" name="event" />
         </parameters>
@@ -4809,7 +4809,7 @@
         </parameters>
       </method>
       <method name="Copy" cname="gdk_pixbuf_copy">
-        <return-type type="GdkPixbuf*" />
+        <return-type type="GdkPixbuf*" owned="true" />
       </method>
       <method name="CopyArea" cname="gdk_pixbuf_copy_area">
         <return-type type="void" />
diff --git a/gtk/gtk-api-2.8.raw b/gtk/gtk-api-2.8.raw
index 73c8d4c94..a1373b1c5 100644
--- a/gtk/gtk-api-2.8.raw
+++ b/gtk/gtk-api-2.8.raw
@@ -9576,7 +9576,7 @@
         </parameters>
       </virtual_method>
       <method name="Copy" cname="gtk_rc_style_copy">
-        <return-type type="GtkRcStyle*" />
+        <return-type type="GtkRcStyle*" owned="true" />
       </method>
       <method name="GetType" cname="gtk_rc_style_get_type" shared="true">
         <return-type type="GType" />
@@ -10708,7 +10708,7 @@
         </parameters>
       </method>
       <method name="Copy" cname="gtk_style_copy">
-        <return-type type="GtkStyle*" />
+        <return-type type="GtkStyle*" owned="true" />
       </method>
       <method name="Detach" cname="gtk_style_detach">
         <return-type type="void" />
@@ -16151,7 +16151,7 @@
       <field name="Top" cname="top" type="gint" />
       <field name="Bottom" cname="bottom" type="gint" />
       <method name="Copy" cname="gtk_border_copy">
-        <return-type type="GtkBorder*" />
+        <return-type type="GtkBorder*" owned="true" />
       </method>
       <method name="Free" cname="gtk_border_free">
         <return-type type="void" />
@@ -16193,7 +16193,7 @@
     </struct>
     <boxed name="IconInfo" cname="GtkIconInfo" opaque="true">
       <method name="Copy" cname="gtk_icon_info_copy">
-        <return-type type="GtkIconInfo*" />
+        <return-type type="GtkIconInfo*" owned="true" />
       </method>
       <method name="Free" cname="gtk_icon_info_free">
         <return-type type="void" />
@@ -16247,7 +16247,7 @@
         </parameters>
       </method>
       <method name="Copy" cname="gtk_icon_set_copy">
-        <return-type type="GtkIconSet*" />
+        <return-type type="GtkIconSet*" owned="true" />
       </method>
       <method name="GetSizes" cname="gtk_icon_set_get_sizes">
         <return-type type="void" />
@@ -16285,7 +16285,7 @@
     </boxed>
     <boxed name="IconSource" cname="GtkIconSource" opaque="true">
       <method name="Copy" cname="gtk_icon_source_copy">
-        <return-type type="GtkIconSource*" />
+        <return-type type="GtkIconSource*" owned="true" />
       </method>
       <method name="Free" cname="gtk_icon_source_free">
         <return-type type="void" />
@@ -16494,7 +16494,7 @@
       <field name="Width" cname="width" type="gint" />
       <field name="Height" cname="height" type="gint" />
       <method name="Copy" cname="gtk_requisition_copy">
-        <return-type type="GtkRequisition*" />
+        <return-type type="GtkRequisition*" owned="true" />
       </method>
       <method name="Free" cname="gtk_requisition_free">
         <return-type type="void" />
@@ -16519,7 +16519,7 @@
       <field name="Length" cname="length" type="gint" />
       <field name="Display" cname="display" type="GdkDisplay*" />
       <method name="Copy" cname="gtk_selection_data_copy">
-        <return-type type="GtkSelectionData*" />
+        <return-type type="GtkSelectionData*" owned="true" />
       </method>
       <method name="Free" cname="gtk_selection_data_free">
         <return-type type="void" />
@@ -16594,7 +16594,7 @@
       <field name="Keyval" cname="keyval" type="guint" />
       <field name="TranslationDomain" cname="translation_domain" type="gchar*" />
       <method name="Copy" cname="gtk_stock_item_copy">
-        <return-type type="GtkStockItem*" />
+        <return-type type="GtkStockItem*" owned="true" />
       </method>
       <method name="Free" cname="gtk_stock_item_free">
         <return-type type="void" />
@@ -16741,7 +16741,7 @@
       <field name="Pad3" cname="pad3" bits="1" type="guint" access="private" />
       <field name="Pad4" cname="pad4" bits="1" type="guint" access="private" />
       <method name="Copy" cname="gtk_text_attributes_copy">
-        <return-type type="GtkTextAttributes*" />
+        <return-type type="GtkTextAttributes*" owned="true" />
       </method>
       <method name="CopyValues" cname="gtk_text_attributes_copy_values">
         <return-type type="void" />
@@ -16891,7 +16891,7 @@
         </parameters>
       </method>
       <method name="Copy" cname="gtk_text_iter_copy">
-        <return-type type="GtkTextIter*" />
+        <return-type type="GtkTextIter*" owned="true" />
       </method>
       <method name="Editable" cname="gtk_text_iter_editable">
         <return-type type="gboolean" />
@@ -17232,7 +17232,7 @@
       <field name="UserData2" cname="user_data2" type="gpointer" />
       <field name="UserData3" cname="user_data3" type="gpointer" />
       <method name="Copy" cname="gtk_tree_iter_copy">
-        <return-type type="GtkTreeIter*" />
+        <return-type type="GtkTreeIter*" owned="true" />
       </method>
       <method name="Free" cname="gtk_tree_iter_free">
         <return-type type="void" />
@@ -17255,7 +17255,7 @@
         </parameters>
       </method>
       <method name="Copy" cname="gtk_tree_path_copy">
-        <return-type type="GtkTreePath*" />
+        <return-type type="GtkTreePath*" owned="true" />
       </method>
       <method name="Down" cname="gtk_tree_path_down">
         <return-type type="void" />
@@ -17318,7 +17318,7 @@
     </boxed>
     <boxed name="TreeRowReference" cname="GtkTreeRowReference" opaque="true">
       <method name="Copy" cname="gtk_tree_row_reference_copy">
-        <return-type type="GtkTreeRowReference*" />
+        <return-type type="GtkTreeRowReference*" owned="true" />
       </method>
       <method name="Deleted" cname="gtk_tree_row_reference_deleted" shared="true">
         <return-type type="void" />
diff --git a/pango/pango-api-2.8.raw b/pango/pango-api-2.8.raw
index 2c4719c31..169740ea8 100644
--- a/pango/pango-api-2.8.raw
+++ b/pango/pango-api-2.8.raw
@@ -434,7 +434,7 @@
         <return-type type="void" />
       </method>
       <method name="Copy" cname="pango_layout_copy">
-        <return-type type="PangoLayout*" />
+        <return-type type="PangoLayout*" owned="true" />
       </method>
       <method name="GetAlignment" cname="pango_layout_get_alignment">
         <return-type type="PangoAlignment" />
@@ -917,7 +917,7 @@
     </struct>
     <struct name="AttrIterator" cname="PangoAttrIterator" opaque="true">
       <method name="Copy" cname="pango_attr_iterator_copy">
-        <return-type type="PangoAttrIterator*" />
+        <return-type type="PangoAttrIterator*" owned="true" />
       </method>
       <method name="Destroy" cname="pango_attr_iterator_destroy">
         <return-type type="void" />
@@ -967,7 +967,7 @@
         </parameters>
       </method>
       <method name="Copy" cname="pango_attr_list_copy">
-        <return-type type="PangoAttrList*" />
+        <return-type type="PangoAttrList*" owned="true" />
       </method>
       <method name="Filter" cname="pango_attr_list_filter">
         <return-type type="PangoAttrList*" />
@@ -1057,7 +1057,7 @@
       <field name="StartIndex" cname="start_index" type="guint" />
       <field name="EndIndex" cname="end_index" type="guint" />
       <method name="Copy" cname="pango_attribute_copy">
-        <return-type type="PangoAttribute*" />
+        <return-type type="PangoAttribute*" owned="true" />
       </method>
       <method name="Destroy" cname="pango_attribute_destroy">
         <return-type type="void" />
@@ -1074,7 +1074,7 @@
       <field name="Green" cname="green" type="guint16" />
       <field name="Blue" cname="blue" type="guint16" />
       <method name="Copy" cname="pango_color_copy">
-        <return-type type="PangoColor*" />
+        <return-type type="PangoColor*" owned="true" />
       </method>
       <method name="Free" cname="pango_color_free">
         <return-type type="void" />
@@ -1091,7 +1091,7 @@
     </boxed>
     <struct name="Coverage" cname="PangoCoverage" opaque="true">
       <method name="Copy" cname="pango_coverage_copy">
-        <return-type type="PangoCoverage*" />
+        <return-type type="PangoCoverage*" owned="true" />
       </method>
       <method name="FromBytes" cname="pango_coverage_from_bytes" shared="true">
         <return-type type="PangoCoverage*" />
@@ -1145,7 +1145,7 @@
         </parameters>
       </method>
       <method name="Copy" cname="pango_font_description_copy">
-        <return-type type="PangoFontDescription*" />
+        <return-type type="PangoFontDescription*" owned="true" />
       </method>
       <method name="CopyStatic" cname="pango_font_description_copy_static">
         <return-type type="PangoFontDescription*" />
@@ -1352,7 +1352,7 @@
       <field name="LogClusters" cname="log_clusters" type="gint*" />
       <field name="Space" cname="space" type="gint" access="private" />
       <method name="Copy" cname="pango_glyph_string_copy">
-        <return-type type="PangoGlyphString*" />
+        <return-type type="PangoGlyphString*" owned="true" />
       </method>
       <method name="Extents" cname="pango_glyph_string_extents">
         <return-type type="void" />
@@ -1427,7 +1427,7 @@
       <field name="NumChars" cname="num_chars" type="gint" />
       <field name="Analysis" cname="analysis" type="PangoAnalysis" />
       <method name="Copy" cname="pango_item_copy">
-        <return-type type="PangoItem*" />
+        <return-type type="PangoItem*" owned="true" />
       </method>
       <method name="Free" cname="pango_item_free">
         <return-type type="void" />
@@ -1633,7 +1633,7 @@
         </parameters>
       </method>
       <method name="Copy" cname="pango_matrix_copy">
-        <return-type type="PangoMatrix*" />
+        <return-type type="PangoMatrix*" owned="true" />
       </method>
       <method name="Free" cname="pango_matrix_free">
         <return-type type="void" />
@@ -1692,7 +1692,7 @@
     </struct>
     <boxed name="TabArray" cname="PangoTabArray" opaque="true">
       <method name="Copy" cname="pango_tab_array_copy">
-        <return-type type="PangoTabArray*" />
+        <return-type type="PangoTabArray*" owned="true" />
       </method>
       <method name="Free" cname="pango_tab_array_free">
         <return-type type="void" />