add missing function decl.

src/zmapWindow/zmapWindow_P.h

@@ -26,9 +26,9 @@
  * Description: Defines internal interfaces/data structures of zMapWindow.
  *              
  * HISTORY:
- * Last edited: Mar  9 13:48 2006 (rds)
+ * Last edited: Mar  9 14:16 2006 (edgrif)
  * Created: Fri Aug  1 16:45:58 2003 (edgrif)
- * CVS info:   $Id: zmapWindow_P.h,v 1.99 2006-03-09 14:11:12 rds Exp $
+ * CVS info:   $Id: zmapWindow_P.h,v 1.100 2006-03-09 14:16:26 edgrif Exp $
  *-------------------------------------------------------------------
  */
 #ifndef ZMAP_WINDOW_P_H
@@ -459,6 +459,7 @@ FooCanvasItem *zmapWindowFToIFindSetItem(GHashTable *feature_to_context_hash,
 FooCanvasItem *zmapWindowFToIFindFeatureItem(GHashTable *feature_to_context_hash, ZMapFeature feature) ;
 FooCanvasItem *zmapWindowFToIFindItemChild(GHashTable *feature_to_context_hash, ZMapFeature feature,
 					   int child_start, int child_end) ;
+FooCanvasItem *zMapWindowFindFeatureItemByItem(ZMapWindow window, FooCanvasItem *item) ;
 gboolean zmapWindowFToIRemoveSet(GHashTable *feature_to_context_hash,
 				 GQuark align_id, GQuark block_id, GQuark set_id,
 				 ZMapStrand set_strand) ;