fix memleak

git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@520 b9cfdab3-6d41-4d17-bbe4-086880011989

include/Mw/Core.h

@@ -280,6 +280,13 @@ MWDECL void MwHideCursor(MwWidget handle);
  */
 MWDECL void MwToggleDarkTheme(MwWidget handle, int toggle);
 
+/*!
+ * @brief Gets the parent widget
+ * @param handle Widget
+ * @return Parent widget
+ */
+MWDECL MwWidget MwGetParent(MwWidget handle);
+
 #ifdef __cplusplus
 }
 #endif