Update doxygen

Change-Id: Iab4c72445e0fa4a32c973077b2340ac52931b617
Signed-off-by: mk5004.lee <mk5004.lee@samsung.com>

diff --git a/widget_viewer_evas/include/widget_viewer_evas.h b/widget_viewer_evas/include/widget_viewer_evas.h
index f5d9268..d5275ae 100644 (file)
--- a/widget_viewer_evas/include/widget_viewer_evas.h
+++ b/widget_viewer_evas/include/widget_viewer_evas.h
@@ -201,13 +201,13 @@ typedef enum widget_evas_conf {
  * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #WIDGET_ERROR_NONE If success
+ * @retval #WIDGET_ERROR_NOT_SUPPORTED Not supported
+ * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
  * @retval #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
  * @retval #WIDGET_ERROR_ALREADY_EXIST Already initialized
- * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
- * @retval #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @see #widget_viewer_evas_fini
  */
-extern int widget_viewer_evas_init(Evas_Object *win);
+int widget_viewer_evas_init(Evas_Object *win);
 
 
 /**
@@ -218,12 +218,12 @@ extern int widget_viewer_evas_init(Evas_Object *win);
  * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #WIDGET_ERROR_NONE If success
- * @retval #WIDGET_ERROR_FAULT Unrecoverable error occurred
- * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
  * @retval #WIDGET_ERROR_NOT_SUPPORTED Not supported
+ * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #WIDGET_ERROR_FAULT Unrecoverable error occurred
  * @see #widget_viewer_evas_init
  */
-extern int widget_viewer_evas_fini(void);
+int widget_viewer_evas_fini(void);
 
 
 /**
@@ -238,15 +238,15 @@ extern int widget_viewer_evas_fini(void);
  * @param[in] period Update period (@c WIDGET_VIEWER_EVAS_DEFAULT_PERIOD can be used for this; this argument will be used to specify the period of updating contents of a widget)
  * @return Widget Object. NULL on error
  * @exception #WIDGET_ERROR_NONE Successfully added
- * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @exception #WIDGET_ERROR_FAULT Failed to create instance
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Failed to create instance
  * @exception #WIDGET_ERROR_MAX_EXCEEDED Maximum number of instances exceeded
  * @see get_last_result()
  * @see #widget_service_get_widget_id
  */
-extern Evas_Object *widget_viewer_evas_add_widget(Evas_Object *parent, const char *widget_id, const char *content_info, double period);
+Evas_Object *widget_viewer_evas_add_widget(Evas_Object *parent, const char *widget_id, const char *content_info, double period);
 
 
 /**
@@ -258,12 +258,12 @@ extern Evas_Object *widget_viewer_evas_add_widget(Evas_Object *parent, const cha
  * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #WIDGET_ERROR_NONE If success
- * @retval #WIDGET_ERROR_FAULT If it failed to send state (paused) info
- * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
  * @retval #WIDGET_ERROR_NOT_SUPPORTED Not supported
+ * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #WIDGET_ERROR_FAULT If it failed to send state (paused) info
  * @see widget_viewer_evas_notify_paused_status_of_viewer()
  */
-extern int widget_viewer_evas_notify_resumed_status_of_viewer(void);
+int widget_viewer_evas_notify_resumed_status_of_viewer(void);
 
 
 /**
@@ -275,12 +275,12 @@ extern int widget_viewer_evas_notify_resumed_status_of_viewer(void);
  * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #WIDGET_ERROR_NONE If success
- * @retval #WIDGET_ERROR_FAULT If it failed to send state (resumed) info
- * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
  * @retval #WIDGET_ERROR_NOT_SUPPORTED Not supported
+ * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #WIDGET_ERROR_FAULT If it failed to send state (resumed) info
  * @see widget_viewer_evas_notify_resumed_status_of_viewer()
  */
-extern int widget_viewer_evas_notify_paused_status_of_viewer(void);
+int widget_viewer_evas_notify_paused_status_of_viewer(void);
 
 
 /**
@@ -293,12 +293,12 @@ extern int widget_viewer_evas_notify_paused_status_of_viewer(void);
  * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #WIDGET_ERROR_NONE If success
- * @retval #WIDGET_ERROR_FAULT If it failed to send state (resumed) info
- * @retval #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
  * @retval #WIDGET_ERROR_NOT_SUPPORTED Not supported
+ * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @retval #WIDGET_ERROR_FAULT If it failed to send state (resumed) info
  */
-extern int widget_viewer_evas_notify_orientation_of_viewer(int orientation);
+int widget_viewer_evas_notify_orientation_of_viewer(int orientation);
 
 
 /**
@@ -310,14 +310,14 @@ extern int widget_viewer_evas_notify_orientation_of_viewer(int orientation);
  * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #WIDGET_ERROR_NONE If success
- * @retval #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @retval #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
  * @retval #WIDGET_ERROR_FAULT If it failed to send state (resumed) info
- * @retval #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @retval #WIDGET_ERROR_DISABLED Widget is frozen by widget_viewer_evas_freeze_visibility()
  * @see widget_viewer_evas_freeze_visibility()
  */
-extern int widget_viewer_evas_pause_widget(Evas_Object *widget);
+int widget_viewer_evas_pause_widget(Evas_Object *widget);
 
 
 /**
@@ -329,14 +329,14 @@ extern int widget_viewer_evas_pause_widget(Evas_Object *widget);
  * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #WIDGET_ERROR_NONE If success
+ * @retval #WIDGET_ERROR_NOT_SUPPORTED Not supported
+ * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
  * @retval #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
  * @retval #WIDGET_ERROR_FAULT If it failed to send state (resumed) info
- * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
- * @retval #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @retval #WIDGET_ERROR_DISABLED Widget is frozen by widget_viewer_evas_freeze_visibility()
  * @see widget_viewer_evas_freeze_visibility()
  */
-extern int widget_viewer_evas_resume_widget(Evas_Object *widget);
+int widget_viewer_evas_resume_widget(Evas_Object *widget);
 
 
 /**
@@ -349,12 +349,12 @@ extern int widget_viewer_evas_resume_widget(Evas_Object *widget);
  * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #WIDGET_ERROR_NONE If success
- * @retval #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
  * @retval #WIDGET_ERROR_NOT_SUPPORTED Not supported
+ * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
  * @see #widget_evas_conf
  */
-extern int widget_viewer_evas_set_option(widget_evas_conf_e type, int value);
+int widget_viewer_evas_set_option(widget_evas_conf_e type, int value);
 
 
 /**
@@ -368,16 +368,16 @@ extern int widget_viewer_evas_set_option(widget_evas_conf_e type, int value);
  * @remarks The specific error code can be obtained using the get_last_result() method. Error codes are described in Exception section.
  * @param[in] widget A widget object
  * @return Content string to be recognized content of the widget. This value is result of bundle_encode.
- * @retval NULL if there is no specific content string
+ *         NULL if there is no specific content string
  * @exception #WIDGET_ERROR_NONE Successfully get content string
- * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @exception #WIDGET_ERROR_FAULT Not initialized
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Not initialized
  * @post Returned string should not be freed.
  * @see get_last_result()
  */
-extern const char *widget_viewer_evas_get_content_info(Evas_Object *widget);
+const char *widget_viewer_evas_get_content_info(Evas_Object *widget);
 
 
 /**
@@ -391,15 +391,15 @@ extern const char *widget_viewer_evas_get_content_info(Evas_Object *widget);
  * @remarks The specific error code can be obtained using the get_last_result() method. Error codes are described in Exception section.
  * @param[in] widget A widget object
  * @return Title string to be used for summarizing the widget
- * @retval NULL if there is no summarized text for content of given widget
+ *         NULL if there is no summarized text for content of given widget
  * @exception #WIDGET_ERROR_NONE Successfully get title string
- * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @exception #WIDGET_ERROR_FAULT Not initialized
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Not initialized
  * @see get_last_result()
  */
-extern const char *widget_viewer_evas_get_title_string(Evas_Object *widget);
+const char *widget_viewer_evas_get_title_string(Evas_Object *widget);
 
 
 /**
@@ -412,15 +412,15 @@ extern const char *widget_viewer_evas_get_title_string(Evas_Object *widget);
  * @remarks The specific error code can be obtained using the get_last_result() method. Error codes are described in Exception section.
  * @param[in] widget A widget object
  * @return Widget ID
- * @retval NULL if an error occurred and you can get the reason of failure using get_last_result()
+ *         NULL if an error occurred and you can get the reason of failure using get_last_result()
  * @exception #WIDGET_ERROR_NONE Successfully get widget ID
- * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
- * @exception #WIDGET_ERROR_FAULT Not initialized
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Not initialized
  * @see get_last_result()
  */
-extern const char *widget_viewer_evas_get_widget_id(Evas_Object *widget);
+const char *widget_viewer_evas_get_widget_id(Evas_Object *widget);
 
 
 /**
@@ -431,15 +431,14 @@ extern const char *widget_viewer_evas_get_widget_id(Evas_Object *widget);
  * @remarks The specific error code can be obtained using the get_last_result() method. Error codes are described in Exception section.
  * @param[in] widget A widget object
  * @return Period the update period of the widget.
- * @retval The update interval of the widget
  * @exception #WIDGET_ERROR_NONE Successfully get period
- * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @exception #WIDGET_ERROR_FAULT Not initialized
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Not initialized
  * @see get_last_result()
  */
-extern double widget_viewer_evas_get_period(Evas_Object *widget);
+double widget_viewer_evas_get_period(Evas_Object *widget);
 
 
 /**
@@ -447,18 +446,18 @@ extern double widget_viewer_evas_get_period(Evas_Object *widget);
  * @details If you call this function after feeding the mouse_down(or mouse_set) event, the widget will get ON_HOLD events.\n
  *          If a widget gets ON_HOLD event, it will not do anything even if you feed mouse_up(or mouse_unset) event.\n
  * @since_tizen 2.3.1
- * @remarks The specific error code can be obtained using the get_last_result() method. Error codes are described in Exception section.
  * @privlevel public
  * @privilege %http://tizen.org/privilege/widget.viewer
+ * @remarks The specific error code can be obtained using the get_last_result() method. Error codes are described in Exception section.
  * @param[in] widget A widget object
  * @exception #WIDGET_ERROR_NONE Successfully get period
- * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @exception #WIDGET_ERROR_FAULT Not initialized
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Not initialized
  * @see get_last_result()
  */
-extern void widget_viewer_evas_cancel_click_event(Evas_Object *widget);
+void widget_viewer_evas_cancel_click_event(Evas_Object *widget);
 
 
 /**
@@ -470,13 +469,13 @@ extern void widget_viewer_evas_cancel_click_event(Evas_Object *widget);
  * @remarks The specific error code can be obtained using the get_last_result() method. Error codes are described in Exception section.
  * @param[in] widget A widget object
  * @exception #WIDGET_ERROR_NONE Successfully disabled preview
- * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @exception #WIDGET_ERROR_FAULT Not initialized
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Not initialized
  * @see get_last_result()
  */
-extern void widget_viewer_evas_disable_preview(Evas_Object *widget);
+void widget_viewer_evas_disable_preview(Evas_Object *widget);
 
 
 /**
@@ -489,13 +488,13 @@ extern void widget_viewer_evas_disable_preview(Evas_Object *widget);
  * @remarks The specific error code can be obtained using the get_last_result() method. Error codes are described in Exception section.
  * @param[in] widget A widget object
  * @exception #WIDGET_ERROR_NONE Successfully disabled overlay text
- * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @exception #WIDGET_ERROR_FAULT Not initialized
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Not initialized
  * @see get_last_result()
  */
-extern void widget_viewer_evas_disable_overlay_text(Evas_Object *widget);
+void widget_viewer_evas_disable_overlay_text(Evas_Object *widget);
 
 
 /**
@@ -508,17 +507,17 @@ extern void widget_viewer_evas_disable_overlay_text(Evas_Object *widget);
  * @remarks The specific error code can be obtained using the get_last_result() method. Error codes are described in Exception section.
  * @param[in] widget A widget object
  * @exception #WIDGET_ERROR_NONE Successfully disabled loading text
- * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @exception #WIDGET_ERROR_FAULT Not initialized
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Not initialized
  * @see get_last_result()
  */
-extern void widget_viewer_evas_disable_loading(Evas_Object *widget);
+void widget_viewer_evas_disable_loading(Evas_Object *widget);
 
 
 /**
- * @brief Feeds the mouse_up event to the provider of the widget
+ * @brief Feeds the mouse_up event to the provider of the widget.
  * @details This is very similar with widget_viewer_evas_cancel_click(), but this will sends mouse_up event explicitly.\n
  *          Also feed the ON_HOLD event before feeds mouse_up event.
  * @since_tizen 2.3.1
@@ -528,16 +527,16 @@ extern void widget_viewer_evas_disable_loading(Evas_Object *widget);
  * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #WIDGET_ERROR_NONE if success
- * @retval #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @retval #WIDGET_ERROR_FAULT Not initialized
  * @retval #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @retval #WIDGET_ERROR_FAULT Not initialized
  */
-extern int widget_viewer_evas_feed_mouse_up_event(Evas_Object *widget);
+int widget_viewer_evas_feed_mouse_up_event(Evas_Object *widget);
 
 
 /**
- * @brief Activate a widget in faulted state.
+ * @brief Activates a widget in faulted state.
  * @details A widget in faulted state MUST be activated before adding the widget.
  * @since_tizen 2.3.1
  * @privlevel public
@@ -545,13 +544,13 @@ extern int widget_viewer_evas_feed_mouse_up_event(Evas_Object *widget);
  * @remarks The specific error code can be obtained using the get_last_result() method. Error codes are described in Exception section.
  * @param[in] widget A widget object faulted
  * @exception #WIDGET_ERROR_NONE Successfully activate faulted widget
- * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @exception #WIDGET_ERROR_FAULT Not initialized
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Not initialized
  * @see get_last_result()
  */
-extern void widget_viewer_evas_activate_faulted_widget(Evas_Object *widget);
+void widget_viewer_evas_activate_faulted_widget(Evas_Object *widget);
 
 
 /**
@@ -562,16 +561,16 @@ extern void widget_viewer_evas_activate_faulted_widget(Evas_Object *widget);
  * @remarks The specific error code can be obtained using the get_last_result() method. Error codes are described in Exception section.
  * @param[in] widget A widget object
  * @return Faulted state of the widget and you can get the result state of this function by using get_last_result()
- * @retval True for faulted state
- * @retval False for not faulted state
+ *         True for faulted state
+ *         False for not faulted state
  * @exception #WIDGET_ERROR_NONE Successfully get the faulted state of the widget
- * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @exception #WIDGET_ERROR_FAULT Not initialized
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Not initialized
  * @see get_last_result()
  */
-extern bool widget_viewer_evas_is_faulted(Evas_Object *widget);
+bool widget_viewer_evas_is_faulted(Evas_Object *widget);
 
 
 /**
@@ -586,13 +585,13 @@ extern bool widget_viewer_evas_is_faulted(Evas_Object *widget);
  * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #WIDGET_ERROR_NONE If success
- * @retval #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @retval #WIDGET_ERROR_FAULT Not initialized
  * @retval #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @retval #WIDGET_ERROR_FAULT Not initialized
  * @see #widget_visibility_status_e
  */
-extern int widget_viewer_evas_freeze_visibility(Evas_Object *widget, widget_visibility_status_e status);
+int widget_viewer_evas_freeze_visibility(Evas_Object *widget, widget_visibility_status_e status);
 
 
 /**
@@ -605,12 +604,12 @@ extern int widget_viewer_evas_freeze_visibility(Evas_Object *widget, widget_visi
  * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #WIDGET_ERROR_NONE If success
- * @retval #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @retval #WIDGET_ERROR_FAULT Not initialized
  * @retval #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @retval #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @retval #WIDGET_ERROR_FAULT Not initialized
  */
-extern int widget_viewer_evas_thaw_visibility(Evas_Object *widget);
+int widget_viewer_evas_thaw_visibility(Evas_Object *widget);
 
 
 /**
@@ -621,40 +620,40 @@ extern int widget_viewer_evas_thaw_visibility(Evas_Object *widget);
  * @remarks The specific error code can be obtained using the get_last_result() method. Error codes are described in Exception section.
  * @param[in] widget A widget object
  * @return Fixed state of visibility and you can get the result state of this function by using get_last_result()
- * @retval True for frozen state
- * @retval False for not frozen state
+ *         True for frozen state
+ *         False for not frozen state
  * @exception #WIDGET_ERROR_NONE Successfully get the state of visibility
- * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @exception #WIDGET_ERROR_FAULT Not initialized
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Not initialized
  * @see get_last_result()
  */
-extern bool widget_viewer_evas_is_visibility_frozen(Evas_Object *widget);
+bool widget_viewer_evas_is_visibility_frozen(Evas_Object *widget);
 
 
 /**
- * @brief Validate the object, whether it is a widget object or not.
+ * @brief Validates the object, whether it is a widget object or not.
  * @since_tizen 2.3.1
  * @privlevel public
  * @privilege %http://tizen.org/privilege/widget.viewer
  * @remarks The specific error code can be obtained using the get_last_result() method. Error codes are described in Exception section.
  * @param[in] widget A widget object
  * @return Result of validation and you can get the result state of this function by using get_last_result()
- * @retval True this is a widget
- * @retval False this is not a widget
+ *         True this is a widget
+ *         False this is not a widget
  * @exception #WIDGET_ERROR_NONE Successfully get result of validation
- * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @exception #WIDGET_ERROR_FAULT Not initialized
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Not initialized
  * @see get_last_result()
  */
-extern bool widget_viewer_evas_is_widget(Evas_Object *widget);
+bool widget_viewer_evas_is_widget(Evas_Object *widget);
 
 
 /**
- * @brief Before deleting a widget, set the deletion mode.
+ * @brief Sets the deletion mode before deleting a widget.
  * @since_tizen 2.3.1
  * @privlevel public
  * @privilege %http://tizen.org/privilege/widget.viewer
@@ -662,13 +661,13 @@ extern bool widget_viewer_evas_is_widget(Evas_Object *widget);
  * @param[in] widget A widget object which will be deleted soon
  * @param[in] flag Pass 1 if you delete this widget instance permanently, or pass 0 if you want to keep it and it will be re-created soon
  * @exception #WIDGET_ERROR_NONE Successfully set the flag
- * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
- * @exception #WIDGET_ERROR_FAULT Not initialized
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
+ * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Not initialized
  * @see get_last_result()
  */
-extern void widget_viewer_evas_set_permanent_delete(Evas_Object *widget, int flag);
+void widget_viewer_evas_set_permanent_delete(Evas_Object *widget, int flag);
 
 /**
  * @brief Gets the widget object's instance ID.
@@ -684,12 +683,12 @@ extern void widget_viewer_evas_set_permanent_delete(Evas_Object *widget, int fla
  * @return The widget's instance ID as a string, NULL in case of errors
  * @exception #WIDGET_ERROR_NONE Successfully retrieved the widget instance ID
  * @exception #WIDGET_ERROR_NOT_SUPPORTED Not supported
- * @exception #WIDGET_ERROR_FAULT Widget is not ready
  * @exception #WIDGET_ERROR_PERMISSION_DENIED Permission denied
  * @exception #WIDGET_ERROR_INVALID_PARAMETER Invalid argument
+ * @exception #WIDGET_ERROR_FAULT Widget is not ready
  * @see get_last_result()
  */
-extern const char *widget_viewer_evas_get_widget_instance_id(Evas_Object *widget);
+const char *widget_viewer_evas_get_widget_instance_id(Evas_Object *widget);
 
 /**
  * @}