- * @return A pointer to the %AppWidgetProviderManager instance, @n
- * else @c null if it fails
+ * @feature %http://tizen.org/feature/shell.appwidget\r
+ *
+ * @return A pointer to the %AppWidgetProviderManager instance, @n
+ * else @c null if it fails
+ * @exception E_SUCCESS The method is successful.\r
+ * @exception E_SYSTEM The method cannot proceed due to a severe system error.
+ * @exception E_UNSUPPORTED_OPERATION The Emulator or target device does not support the required feature.\r
+ * For more information, see <a href="../org.tizen.gettingstarted/html/tizen_overview/application_filtering.htm">Application Filtering</a>.\r
+ *
+ * @remarks - The specific error code can be accessed using the GetLastResult() method.
+ * - Before calling this method, check whether the feature is supported by %Tizen::System::SystemInfo::GetValue() methods.\r