diff --git a/external/airtaudio b/external/airtaudio
index bb547a72..b0eb151d 160000
--- a/external/airtaudio
+++ b/external/airtaudio
@@ -1 +1 @@
-Subproject commit bb547a72d99802ac5d9a99c843549f175c856826
+Subproject commit b0eb151df0802a1d63a5cb6b6812a4460ddd09a1
diff --git a/external/egami b/external/egami
index bb58a8c0..34eac48f 160000
--- a/external/egami
+++ b/external/egami
@@ -1 +1 @@
-Subproject commit bb58a8c06e30cf141a59f8a09a544919c1f695ed
+Subproject commit 34eac48f5114151bab137e9cb177513c7cf42d96
diff --git a/sources/ewol/Dimension.h b/sources/ewol/Dimension.h
index cbd2999a..f078f463 100644
--- a/sources/ewol/Dimension.h
+++ b/sources/ewol/Dimension.h
@@ -65,7 +65,7 @@ namespace ewol {
 			/**
 			 * @brief Destructor
 			 */
-			~Dimension();
+			virtual ~Dimension();
 			
 			/**
 			 * @brief string cast :
diff --git a/sources/ewol/compositing/Area.h b/sources/ewol/compositing/Area.h
index e5eb9308..172126bc 100644
--- a/sources/ewol/compositing/Area.h
+++ b/sources/ewol/compositing/Area.h
@@ -47,7 +47,7 @@ namespace ewol {
 				/**
 				 * @brief generic destructor
 				 */
-				~Area();
+				virtual ~Area();
 			public:
 				/**
 				 * @brief draw All the refistered text in the current element on openGL
diff --git a/sources/ewol/compositing/Drawing.h b/sources/ewol/compositing/Drawing.h
index c08c9f60..d19109f5 100644
--- a/sources/ewol/compositing/Drawing.h
+++ b/sources/ewol/compositing/Drawing.h
@@ -43,7 +43,7 @@ namespace ewol {
 				/**
 				 * @brief Basic destructor
 				 */
-				~Drawing();
+				virtual ~Drawing();
 			private:
 				/**
 				 * @brief load the openGL program and get all the ID needed
diff --git a/sources/ewol/compositing/Shaper.h b/sources/ewol/compositing/Shaper.h
index 000a119b..f4940364 100644
--- a/sources/ewol/compositing/Shaper.h
+++ b/sources/ewol/compositing/Shaper.h
@@ -101,7 +101,7 @@ namespace ewol {
 				/**
 				 * @brief generic destructor
 				 */
-				~Shaper();
+				virtual ~Shaper();
 			public:
 				/**
 				 * @brief draw All the refistered text in the current element on openGL
diff --git a/sources/ewol/context/ConfigFont.h b/sources/ewol/context/ConfigFont.h
index 1035784c..8e583948 100644
--- a/sources/ewol/context/ConfigFont.h
+++ b/sources/ewol/context/ConfigFont.h
@@ -19,7 +19,7 @@ namespace ewol {
 				 * Constructor / destructor
 				 */
 				ConfigFont();
-				~ConfigFont();
+				virtual ~ConfigFont();
 			private:
 				std::string m_folder;
 			public:
diff --git a/sources/ewol/context/IOs/OpenglView.h b/sources/ewol/context/IOs/OpenglView.h
index 37c8e855..da41a096 100644
--- a/sources/ewol/context/IOs/OpenglView.h
+++ b/sources/ewol/context/IOs/OpenglView.h
@@ -17,13 +17,12 @@
  Note that setting the view non-opaque will only work if the EAGL surface has an alpha channel.
  */
 @interface OpenglView : UIView {
-    
 @private
-    CAEAGLLayer* _eaglLayer;
+	CAEAGLLayer* _eaglLayer;
 	
 	EAGLContext *_context;
-    GLuint _colorRenderBuffer;
-    GLuint _depthRenderBuffer;
+	GLuint _colorRenderBuffer;
+	GLuint _depthRenderBuffer;
 	
 	/* OpenGL names for the renderbuffer and framebuffers used to render to this view */
 	GLuint viewRenderbuffer, viewFramebuffer;
diff --git a/sources/ewol/object/Manager.cpp b/sources/ewol/object/Manager.cpp
index 55cd0b1e..d1226899 100644
--- a/sources/ewol/object/Manager.cpp
+++ b/sources/ewol/object/Manager.cpp
@@ -112,6 +112,7 @@ void ewol::object::Manager::remove(const ewol::object::Shared<ewol::Object>& _ob
 		EWOL_ERROR("Try to Auto-Remove (nullptr) Object");
 		return;
 	}
+	int32_t count = 0;
 	auto it(m_eObjectListActive.begin());
 	while (it != m_eObjectListActive.end()) {
 		if (*it == _object) {
@@ -120,13 +121,19 @@ void ewol::object::Manager::remove(const ewol::object::Shared<ewol::Object>& _ob
 			EWOL_DEBUG("Auto-Remove Object : [" << _object->getId() << "] type='" << _object->getObjectType() << "' name=" << _object->getName());
 			informOneObjectIsRemoved(_object);
 			ewol::getContext().forceRedrawAll();
-			EWOL_DEBUG("Auto-Remove Object ... done (have " << _object->getRefCount() << " references)");
+			EWOL_VERBOSE("Auto-Remove Object ... done (have " << _object->getRefCount() << " references)");
 			it = m_eObjectListActive.begin();
+			count++;
 		} else {
 			++it;
 		}
 	}
-	EWOL_ERROR("Try to Auto-Remove Object that is not referenced ...");
+	if (count == 0) {
+		EWOL_ERROR("Try to Auto-Remove Object that is not referenced ...");
+	} else if (    count>1
+	            || count<0) {
+		EWOL_ERROR("Remove more than one object in the system list ==> this is a real problem ...");
+	}
 }
 
 // clean all Object that request an autoRemove ...
diff --git a/sources/ewol/object/Manager.h b/sources/ewol/object/Manager.h
index 2f3d7a0e..33e633c5 100644
--- a/sources/ewol/object/Manager.h
+++ b/sources/ewol/object/Manager.h
@@ -25,7 +25,7 @@ namespace ewol {
 				Context& m_context;
 			public:
 				Manager(Context& _context);
-				~Manager();
+				virtual ~Manager();
 				/**
 				 * @brief remove all resources (un-init) out of the destructor (due to the system implementation)
 				 */
diff --git a/sources/ewol/object/MultiCast.h b/sources/ewol/object/MultiCast.h
index c248f310..a5feb1d7 100644
--- a/sources/ewol/object/MultiCast.h
+++ b/sources/ewol/object/MultiCast.h
@@ -32,7 +32,7 @@ namespace ewol {
 				std::vector<MessageList> m_messageList; //!< List of all message ...
 			public:
 				MultiCast();
-				~MultiCast();
+				virtual ~MultiCast();
 				void clear();
 				void anonymousSend(const char* const _messageId, const std::string& _data) {
 					send(nullptr, _messageId, _data);
diff --git a/sources/ewol/object/Object.cpp b/sources/ewol/object/Object.cpp
index 7bf923f7..9cda9373 100644
--- a/sources/ewol/object/Object.cpp
+++ b/sources/ewol/object/Object.cpp
@@ -59,18 +59,40 @@ void ewol::Object::operator delete[](void* _ptr, std::size_t _sz) {
 	EWOL_CRITICAL("custom delete for size ==> not implemented ..." << _sz);
 	::operator delete(_ptr);
 }
+#ifdef DEBUG
+void ewol::Object::incOwnerCount() {
+	std::unique_lock<std::mutex> lock(m_lockRefCount);
+	m_ownerCount++;
+	if (m_ownerCount>1) {
+		EWOL_CRITICAL("Multiple Owner on one Object ==> very bad ... " << m_ownerCount);
+	}
+}
+
+void ewol::Object::decOwnerCount() {
+	std::unique_lock<std::mutex> lock(m_lockRefCount);
+	m_ownerCount--;
+	if (m_ownerCount<0) {
+		EWOL_CRITICAL("Owner remove the owner counter under 1 ==> very bad ... " << m_ownerCount);
+	}
+}
+#endif
 
 void ewol::Object::autoDestroy() {
 	EWOL_VERBOSE("Destroy object : [" << getId() << "] type:" << getObjectType());
+	bool needRemove = false;
 	{
 		std::unique_lock<std::mutex> lock(m_lockRefCount);
 		if (m_isDestroyed == true) {
 			EWOL_WARNING("Request remove of a removed object");
 			return;
+		} else {
+			m_isDestroyed = true;
+			needRemove = true;
 		}
-		m_isDestroyed = true;
 	}
-	getObjectManager().remove(this);
+	if (needRemove == true) {
+		getObjectManager().remove(this);
+	}
 }
 
 void ewol::Object::removeObject() {
@@ -89,6 +111,9 @@ void ewol::Object::respownObject() {
 
 ewol::Object::Object() :
   m_objRefCount(1),
+  #ifdef DEBUG
+    m_ownerCount(0),
+  #endif
   m_isDestroyed(false),
   m_static(false),
   m_isResource(false) {
@@ -100,6 +125,9 @@ ewol::Object::Object() :
 }
 ewol::Object::Object(const std::string& _name) :
   m_objRefCount(1),
+  #ifdef DEBUG
+    m_ownerCount(0),
+  #endif
   m_isDestroyed(false),
   m_static(false),
   m_name(_name),
@@ -114,12 +142,6 @@ ewol::Object::Object(const std::string& _name) :
 ewol::Object::~Object() {
 	EWOL_DEBUG("delete Object : [" << m_uniqueId << "] : " << getTypeDescription() << " refcount=" << m_objRefCount);
 	getMultiCast().rm(this);
-	for (size_t iii=0; iii<m_externEvent.size(); ++iii) {
-		if (m_externEvent[iii] != nullptr) {
-			delete(m_externEvent[iii]);
-			m_externEvent[iii] = nullptr;
-		}
-	}
 	m_externEvent.clear();
 	m_availlableEventId.clear();
 	m_uniqueId = -1;
@@ -161,7 +183,13 @@ bool ewol::Object::isTypeCompatible(const std::string& _type) {
 }
 
 void ewol::Object::addEventId(const char * _generateEventId) {
-	if (nullptr != _generateEventId) {
+	for (auto &it : m_availlableEventId) {
+		if (std::string(it) == _generateEventId) {
+			EWOL_WARNING("Event already existed : '" << it << "' == '" << _generateEventId << "'");
+			return;
+		}
+	}
+	if (_generateEventId != nullptr) {
 		m_availlableEventId.push_back(_generateEventId);
 	}
 }
@@ -170,29 +198,25 @@ void ewol::Object::generateEventId(const char * _generateEventId, const std::str
 	int32_t nbObject = getObjectManager().getNumberObject();
 	EWOL_VERBOSE("try send message '" << _generateEventId << "'");
 	// for every element registered ...
-	for (size_t iii=0; iii<m_externEvent.size(); ++iii) {
-		if (nullptr==m_externEvent[iii]) {
-			EWOL_VERBOSE("    Null pointer");
-			continue;
-		}
+	for (auto &it : m_externEvent) {
 		// if we find the event ...
-		if (m_externEvent[iii]->localEventId != _generateEventId) {
-			EWOL_VERBOSE("    wrong event '" << m_externEvent[iii]->localEventId << "' != '" << _generateEventId << "'");
+		if (it.localEventId != _generateEventId) {
+			EWOL_VERBOSE("    wrong event '" << it.localEventId << "' != '" << _generateEventId << "'");
 			continue;
 		}
-		if (m_externEvent[iii]->destObject == nullptr) {
+		if (it.destObject == nullptr) {
 			EWOL_VERBOSE("    nullptr dest");
 			continue;
 		}
-		if (m_externEvent[iii]->overloadData.size() <= 0){
-			ewol::object::Message tmpMsg(this, m_externEvent[iii]->destEventId, _data);
+		if (it.overloadData.size() <= 0){
+			ewol::object::Message tmpMsg(this, it.destEventId, _data);
 			EWOL_VERBOSE("send message " << tmpMsg);
-			m_externEvent[iii]->destObject->onReceiveMessage(tmpMsg);
+			it.destObject->onReceiveMessage(tmpMsg);
 		} else {
 			// set the user requested data ...
-			ewol::object::Message tmpMsg(this, m_externEvent[iii]->destEventId, m_externEvent[iii]->overloadData);
+			ewol::object::Message tmpMsg(this, it.destEventId, it.overloadData);
 			EWOL_VERBOSE("send message " << tmpMsg);
-			m_externEvent[iii]->destObject->onReceiveMessage(tmpMsg);
+			it.destObject->onReceiveMessage(tmpMsg);
 		}
 	}
 	if (nbObject > getObjectManager().getNumberObject()) {
@@ -227,19 +251,15 @@ void ewol::Object::registerOnEvent(const ewol::object::Shared<ewol::Object>& _de
 	if (    _eventId[0] == '*'
 	     && _eventId[1] == '\0') {
 		EWOL_VERBOSE("Register on all event ...");
-		for(size_t iii=0; iii<m_availlableEventId.size(); iii++) {
-			ewol::object::EventExtGen * tmpEvent = new ewol::object::EventExtGen();
-			if (nullptr == tmpEvent) {
-				EWOL_ERROR("Allocation error in Register Event...");
-				continue;
-			}
-			tmpEvent->localEventId = m_availlableEventId[iii];
-			tmpEvent->destObject = _destinationObject;
-			tmpEvent->overloadData = _overloadData;
+		for(auto &it : m_availlableEventId) {
+			ewol::object::EventExtGen tmpEvent;
+			tmpEvent.localEventId = it;
+			tmpEvent.destObject = _destinationObject;
+			tmpEvent.overloadData = _overloadData;
 			if (nullptr != _eventIdgenerated) {
-				tmpEvent->destEventId = _eventIdgenerated;
+				tmpEvent.destEventId = _eventIdgenerated;
 			} else {
-				tmpEvent->destEventId = m_availlableEventId[iii];
+				tmpEvent.destEventId = it;
 			}
 			m_externEvent.push_back(tmpEvent);
 		}
@@ -247,18 +267,18 @@ void ewol::Object::registerOnEvent(const ewol::object::Shared<ewol::Object>& _de
 	}
 	// check if event existed :
 	bool findIt = false;
-	for(size_t iii=0; iii<m_availlableEventId.size(); iii++) {
-		if (m_availlableEventId[iii] == _eventId) {
+	for(auto &it : m_availlableEventId) {
+		if (it == _eventId) {
 			findIt = true;
 			break;
 		}
 	}
 	if (false == findIt) {
 		EWOL_VERBOSE("Try to register with a NON direct string name");
-		for(size_t iii=0; iii<m_availlableEventId.size(); iii++) {
-			if (0 == strncmp(m_availlableEventId[iii], _eventId, 1024)) {
+		for(auto &it : m_availlableEventId) {
+			if (0 == strncmp(it, _eventId, 1024)) {
 				findIt = true;
-				_eventId = m_availlableEventId[iii];
+				_eventId = it;
 				EWOL_VERBOSE("find event ID : '" << _eventId << "' ==> '" << _eventIdgenerated << "'");
 				break;
 			}
@@ -268,50 +288,54 @@ void ewol::Object::registerOnEvent(const ewol::object::Shared<ewol::Object>& _de
 		EWOL_ERROR("Can not register event on this Type=" << getObjectType() << " event=\"" << _eventId << "\"  == > unknow event");
 		return;
 	}
-	ewol::object::EventExtGen * tmpEvent = new ewol::object::EventExtGen();
-	if (nullptr == tmpEvent) {
-		EWOL_ERROR("Allocation error in Register Event...");
-		return;
-	}
-	tmpEvent->localEventId = _eventId;
-	tmpEvent->destObject = _destinationObject;
-	tmpEvent->overloadData = _overloadData;
+	ewol::object::EventExtGen tmpEvent;
+	tmpEvent.localEventId = _eventId;
+	tmpEvent.destObject = _destinationObject;
+	tmpEvent.overloadData = _overloadData;
 	if (nullptr != _eventIdgenerated) {
-		tmpEvent->destEventId = _eventIdgenerated;
+		tmpEvent.destEventId = _eventIdgenerated;
 	} else {
-		tmpEvent->destEventId = _eventId;
+		tmpEvent.destEventId = _eventId;
 	}
 	m_externEvent.push_back(tmpEvent);
 }
 
 void ewol::Object::unRegisterOnEvent(const ewol::object::Shared<ewol::Object>& _destinationObject,
-                                      const char * _eventId) {
-	if (nullptr == _destinationObject) {
+                                     const char * _eventId) {
+	if (_destinationObject == nullptr) {
 		EWOL_ERROR("Input ERROR nullptr pointer Object ...");
 		return;
 	}
 	// check if event existed :
-	for(int64_t iii = m_externEvent.size()-1; iii >= 0; --iii) {
-		if (m_externEvent[iii] == nullptr) {
-			continue;
-		}
-		if (m_externEvent[iii]->destObject != _destinationObject) {
-			continue;
-		}
-		if (_eventId == nullptr) {
-			m_externEvent.erase(m_externEvent.begin()+iii);
-		} else if (m_externEvent[iii]->localEventId == _eventId) {
-			m_externEvent.erase(m_externEvent.begin()+iii);
+	auto it(m_externEvent.begin());
+	while(it != m_externEvent.end()) {
+		if (it->destObject == nullptr) {
+			m_externEvent.erase(it);
+			it = m_externEvent.begin();
+		} else if (    it->destObject == _destinationObject
+		            && it->localEventId == _eventId) {
+			m_externEvent.erase(it);
+			it = m_externEvent.begin();
+			EWOL_INFO("[" << getId() << "] Remove extern event : to object id=" << _destinationObject->getId() << " event=" << _eventId);
+		} else {
+			++it;
 		}
 	}
 }
 
 void ewol::Object::onObjectRemove(const ewol::object::Shared<ewol::Object>& _object) {
 	EWOL_VERBOSE("[" << getId() << "] onObjectRemove(" << _object->getId() << ")");
-	for(int32_t iii=m_externEvent.size()-1; iii >= 0; iii--) {
-		if (m_externEvent[iii] != nullptr) {
-			m_externEvent.erase(m_externEvent.begin()+iii);
-			EWOL_VERBOSE("[" << getId() << "] Remove extern event : to object id=" << _object->getId());
+	auto it(m_externEvent.begin());
+	while(it != m_externEvent.end()) {
+		if (it->destObject == nullptr) {
+			m_externEvent.erase(it);
+			it = m_externEvent.begin();
+		} else if (it->destObject == _object) {
+			m_externEvent.erase(it);
+			it = m_externEvent.begin();
+			EWOL_INFO("[" << getId() << "] Remove extern event : to object id=" << _object->getId());
+		} else {
+			++it;
 		}
 	}
 }
diff --git a/sources/ewol/object/Object.h b/sources/ewol/object/Object.h
index 47da1e90..857d12a1 100644
--- a/sources/ewol/object/Object.h
+++ b/sources/ewol/object/Object.h
@@ -69,6 +69,12 @@ namespace ewol {
 			static void operator delete(void* _ptr, std::size_t _sz);
 			//! @not-in-doc
 			static void operator delete[](void* _ptr, std::size_t _sz);
+		#ifdef DEBUG
+		public:
+			int32_t m_ownerCount;
+			void incOwnerCount();
+			void decOwnerCount();
+		#endif
 		private:
 			static size_t m_valUID; //!< stic used for the unique ID definition
 		public:
@@ -157,7 +163,7 @@ namespace ewol {
 				return m_uniqueId;
 			};
 		private:
-			std::vector<object::EventExtGen*> m_externEvent; //!< Generic list of event generation for output link
+			std::vector<object::EventExtGen> m_externEvent; //!< Generic list of event generation for output link
 			std::vector<const char*> m_availlableEventId; //!< List of all event availlable for this widget
 		protected:
 			/**
diff --git a/sources/ewol/object/Owner.h b/sources/ewol/object/Owner.h
index 05e102b3..f9bc5c0f 100644
--- a/sources/ewol/object/Owner.h
+++ b/sources/ewol/object/Owner.h
@@ -54,6 +54,9 @@ namespace ewol {
 							return;
 						}
 						m_pointer->objRefCountIncrement();
+						#ifdef DEBUG
+							m_pointer->incOwnerCount();
+						#endif
 					}
 					template<typename T2, typename = typename
 					       std::enable_if<std::is_convertible<T*, T2*>::value>::type>
@@ -65,6 +68,9 @@ namespace ewol {
 						m_pointer = _obj.get();
 						if (m_pointer != nullptr) {
 							m_pointer->objRefCountIncrement();
+							#ifdef DEBUG
+								m_pointer->incOwnerCount();
+							#endif
 						}
 						return *this;
 					}
@@ -75,6 +81,9 @@ namespace ewol {
 						m_pointer = _obj.get();
 						if (m_pointer != nullptr) {
 							m_pointer->objRefCountIncrement();
+							#ifdef DEBUG
+								m_pointer->incOwnerCount();
+							#endif
 						}
 						return *this;
 					}
@@ -95,6 +104,9 @@ namespace ewol {
 							delete tmp;
 						} else {
 							tmp->objRefCountDecrement();
+							#ifdef DEBUG
+								tmp->decOwnerCount();
+							#endif
 						}
 					}
 					void resetShared() {
@@ -111,6 +123,9 @@ namespace ewol {
 							delete tmp;
 						} else {
 							tmp->objRefCountDecrement();
+							#ifdef DEBUG
+								tmp->decOwnerCount();
+							#endif
 						}
 					}
 					T* get() noexcept {
diff --git a/sources/ewol/object/RemoveEvent.h b/sources/ewol/object/RemoveEvent.h
index 3e2548c5..f108ca05 100644
--- a/sources/ewol/object/RemoveEvent.h
+++ b/sources/ewol/object/RemoveEvent.h
@@ -19,7 +19,7 @@ namespace ewol {
 				virtual void onObjectRemove(const ewol::object::Shared<ewol::Object>& _object) = 0;
 			public:
 				RemoveEvent();
-				~RemoveEvent();
+				virtual ~RemoveEvent();
 		};
 	}
 };
diff --git a/sources/ewol/resource/ColorFile.cpp b/sources/ewol/resource/ColorFile.cpp
index b82905fb..2abf85b5 100644
--- a/sources/ewol/resource/ColorFile.cpp
+++ b/sources/ewol/resource/ColorFile.cpp
@@ -48,7 +48,7 @@ void ewol::resource::ColorFile::reload() {
 		EWOL_ERROR("Can not get basic array : 'color'");
 		return;
 	}
-	for (int32_t iii = 0; iii < baseArray->size(); ++iii) {
+	for (size_t iii = 0; iii < baseArray->size(); ++iii) {
 		ejson::Object* tmpObj = baseArray->getObject(iii);
 		if (tmpObj == nullptr) {
 			EWOL_DEBUG(" can not get object in 'color' id=" << iii);
diff --git a/sources/ewol/resource/ConfigFile.cpp b/sources/ewol/resource/ConfigFile.cpp
index 6ddc8b4d..358a6db6 100644
--- a/sources/ewol/resource/ConfigFile.cpp
+++ b/sources/ewol/resource/ConfigFile.cpp
@@ -29,7 +29,7 @@ ewol::resource::ConfigFile::ConfigFile(const std::string& _filename) :
 
 ewol::resource::ConfigFile::~ConfigFile() {
 	// remove all element
-	for (size_t iii=0; iii<m_list.size(); iii++){
+	for (int32_t iii=0; iii<m_list.size(); iii++){
 		if (nullptr != m_list[iii]) {
 			delete(m_list[iii]);
 			m_list[iii] = nullptr;
@@ -40,7 +40,7 @@ ewol::resource::ConfigFile::~ConfigFile() {
 
 void ewol::resource::ConfigFile::reload() {
 	// reset all parameters
-	for (size_t iii=0; iii<m_list.size(); iii++){
+	for (int32_t iii=0; iii<m_list.size(); iii++){
 		if (nullptr != m_list[iii]) {
 			m_list[iii] = nullptr;
 		}
diff --git a/sources/ewol/resource/DistanceFieldFont.h b/sources/ewol/resource/DistanceFieldFont.h
index 79b488f9..ca664e88 100644
--- a/sources/ewol/resource/DistanceFieldFont.h
+++ b/sources/ewol/resource/DistanceFieldFont.h
@@ -33,7 +33,7 @@ namespace ewol {
 			protected:
 				DistanceFieldFont(const std::string& _fontName);
 			public:
-				~DistanceFieldFont();
+				virtual ~DistanceFieldFont();
 			public:
 				float getDisplayRatio(float _size);
 				/**
diff --git a/sources/ewol/resource/FontFreeType.h b/sources/ewol/resource/FontFreeType.h
index c58b79f9..663d217c 100644
--- a/sources/ewol/resource/FontFreeType.h
+++ b/sources/ewol/resource/FontFreeType.h
@@ -31,7 +31,7 @@ namespace ewol {
 			protected:
 				FontFreeType(const std::string& _fontName);
 			public:
-				~FontFreeType();
+				virtual ~FontFreeType();
 			public:
 				
 				bool getGlyphProperty(int32_t _fontSize,
diff --git a/sources/ewol/resource/Manager.cpp b/sources/ewol/resource/Manager.cpp
index 619baef7..3e96bb16 100644
--- a/sources/ewol/resource/Manager.cpp
+++ b/sources/ewol/resource/Manager.cpp
@@ -186,6 +186,7 @@ bool ewol::resource::Manager::checkResourceToRemove() {
 		if ((*it)->getRefCount() > 3) {
 			continue;
 		}
+		EWOL_DEBUG("Request remove of an resource (refcount in Low : " << (*it)->getRefCount() << ")");
 		m_resourceList.erase(it);
 		it = m_resourceList.begin();
 		return true;
diff --git a/sources/ewol/resource/Manager.h b/sources/ewol/resource/Manager.h
index 0a0321da..3f6c1fe6 100644
--- a/sources/ewol/resource/Manager.h
+++ b/sources/ewol/resource/Manager.h
@@ -32,7 +32,7 @@ namespace ewol {
 				 * @brief Uninitiamize the resource manager, free all resources previously requested
 				 * @note when not free  == > generate warning, because the segfault can appear after...
 				 */
-				~Manager();
+				virtual ~Manager();
 				/**
 				 * @brief remove all resources (un-init) out of the destructor (due to the system implementation)
 				 */
diff --git a/sources/ewol/resource/Texture.h b/sources/ewol/resource/Texture.h
index fb775290..fea76c6e 100644
--- a/sources/ewol/resource/Texture.h
+++ b/sources/ewol/resource/Texture.h
@@ -48,7 +48,7 @@ namespace ewol {
 				Texture(const std::string& _filename);
 				Texture();
 			public:
-				~Texture();
+				virtual ~Texture();
 			public:
 				// you must set the size here, because it will be set in multiple of pow(2)
 				void setImageSize(ivec2 newSize);
diff --git a/sources/ewol/resource/TexturedFont.h b/sources/ewol/resource/TexturedFont.h
index 107ab8f7..46b07d6e 100644
--- a/sources/ewol/resource/TexturedFont.h
+++ b/sources/ewol/resource/TexturedFont.h
@@ -47,7 +47,7 @@ namespace ewol {
 			protected:
 				TexturedFont(const std::string& _fontName);
 			public:
-				~TexturedFont();
+				virtual ~TexturedFont();
 			public:
 				/**
 				 * @brief get the display height of this font
diff --git a/sources/ewol/widget/Composer.h b/sources/ewol/widget/Composer.h
index f1b233c3..0dcf64a3 100644
--- a/sources/ewol/widget/Composer.h
+++ b/sources/ewol/widget/Composer.h
@@ -40,7 +40,7 @@ namespace ewol {
 				/**
 				 * @brief Destructor
 				 */
-				~Composer();
+				virtual ~Composer();
 				/**
 				 * @brief load a composition with a file
 				 * @param[in] _fileName Name of the file
diff --git a/sources/ewol/widget/Container.h b/sources/ewol/widget/Container.h
index 6bd672f8..feb9caf0 100644
--- a/sources/ewol/widget/Container.h
+++ b/sources/ewol/widget/Container.h
@@ -30,7 +30,7 @@ namespace ewol {
 				/**
 				 * @brief Destructor
 				 */
-				~Container();
+				virtual ~Container();
 			public:
 				/**
 				 * @brief get the main node widget
diff --git a/sources/ewol/widget/Container2.h b/sources/ewol/widget/Container2.h
index bbf39536..540cec3a 100644
--- a/sources/ewol/widget/Container2.h
+++ b/sources/ewol/widget/Container2.h
@@ -34,7 +34,7 @@ namespace ewol {
 				/**
 				 * @brief Destructor
 				 */
-				~Container2();
+				virtual ~Container2();
 			private:
 				/**
 				 * @brief Specify the current widget
diff --git a/sources/ewol/widget/ContainerN.h b/sources/ewol/widget/ContainerN.h
index d723e6fc..1ec1be6a 100644
--- a/sources/ewol/widget/ContainerN.h
+++ b/sources/ewol/widget/ContainerN.h
@@ -31,7 +31,7 @@ namespace ewol {
 				/**
 				 * @brief Destructor
 				 */
-				~ContainerN();
+				virtual ~ContainerN();
 			protected:
 				bvec2 m_lockExpand; //!< Lock the expend of the sub widget to this one  == > this permit to limit bigger subWidget
 				bvec2 m_subExpend; //!< reference of the sub element expention requested.
diff --git a/sources/ewol/widget/ListFileSystem.h b/sources/ewol/widget/ListFileSystem.h
index ab3c303d..109a4170 100644
--- a/sources/ewol/widget/ListFileSystem.h
+++ b/sources/ewol/widget/ListFileSystem.h
@@ -37,7 +37,7 @@ namespace ewol {
 				// TODO : Add a standalone configuration ..
 			public:
 				ListFileSystem();
-				~ListFileSystem();
+				virtual ~ListFileSystem();
 			protected:
 				ewol::object::Shared<ewol::resource::ColorFile> m_colorProperty; //!< theme color property.
 				int32_t m_colorIdText; //!< Color of the text.
diff --git a/sources/ewol/widget/Manager.h b/sources/ewol/widget/Manager.h
index 12b6b796..4319cbe0 100644
--- a/sources/ewol/widget/Manager.h
+++ b/sources/ewol/widget/Manager.h
@@ -33,7 +33,7 @@ namespace ewol {
 				int64_t m_lastPeriodicCallTime; //!< last call time ...
 			public:
 				Manager();
-				~Manager();
+				virtual ~Manager();
 				
 				void focusKeep(const ewol::object::Shared<ewol::Widget>& _newWidget); // set the focus at the specific widget
 				void focusSetDefault(const ewol::object::Shared<ewol::Widget>& _newWidget); // select the default focus getter
diff --git a/sources/ewol/widget/Widget.h b/sources/ewol/widget/Widget.h
index 27632c1b..4b1de028 100644
--- a/sources/ewol/widget/Widget.h
+++ b/sources/ewol/widget/Widget.h
@@ -106,7 +106,7 @@ namespace ewol {
 				unicodeValue = 0;
 				keyboardMoveValue = ewol::key::keyboardUnknow;
 			};
-			~EventShortCut() { };
+			virtual ~EventShortCut() { };
 	};
 	/**
 	 * @brief Widget class is the main widget interface, it hase some generic properties: 
diff --git a/sources/ewol/widget/meta/ColorChooser.h b/sources/ewol/widget/meta/ColorChooser.h
index fd6b41fa..9d5f6359 100644
--- a/sources/ewol/widget/meta/ColorChooser.h
+++ b/sources/ewol/widget/meta/ColorChooser.h
@@ -30,7 +30,7 @@ namespace ewol {
 				static const char * const eventChange;
 			public:
 				ColorChooser();
-				~ColorChooser();
+				virtual ~ColorChooser();
 			public: // Derived function
 				virtual void onReceiveMessage(const ewol::object::Message& _msg);
 				virtual void onObjectRemove(const ewol::object::Shared<ewol::Object>& _removeObject);
diff --git a/sources/ewol/widget/meta/Parameter.h b/sources/ewol/widget/meta/Parameter.h
index 403b42ba..a85bf2c9 100644
--- a/sources/ewol/widget/meta/Parameter.h
+++ b/sources/ewol/widget/meta/Parameter.h
@@ -32,7 +32,7 @@ namespace ewol {
 				static const char * const eventClose;
 			public:
 				Parameter();
-				~Parameter();
+				virtual ~Parameter();
 			public: // Derived function
 				virtual void onReceiveMessage(const ewol::object::Message& _msg);
 				virtual void onObjectRemove(const ewol::object::Shared<ewol::Object>& _removeObject);
diff --git a/sources/ewol/widget/meta/ParameterList.h b/sources/ewol/widget/meta/ParameterList.h
index 4ac1b44a..fcad3cff 100644
--- a/sources/ewol/widget/meta/ParameterList.h
+++ b/sources/ewol/widget/meta/ParameterList.h
@@ -30,7 +30,7 @@ namespace ewol {
 				  m_image(_image) {
 					
 				};
-				~elementPL() {};
+				virtual ~elementPL() {};
 		};
 		
 		/**
diff --git a/sources/ewol/widget/meta/StdPopUp.h b/sources/ewol/widget/meta/StdPopUp.h
index 8ca0e075..384881fd 100644
--- a/sources/ewol/widget/meta/StdPopUp.h
+++ b/sources/ewol/widget/meta/StdPopUp.h
@@ -48,7 +48,7 @@ namespace ewol {
 				/**
 				 * @brief std-pop-up destructor.
 				 */
-				~StdPopUp();
+				virtual ~StdPopUp();
 			protected:
 				ewol::object::Shared<ewol::widget::Label> m_title; //!< Title Label widget
 			public:
diff --git a/sources/lutin_ewol.py b/sources/lutin_ewol.py
index ba14e7b4..cf0158b8 100755
--- a/sources/lutin_ewol.py
+++ b/sources/lutin_ewol.py
@@ -17,7 +17,7 @@ def create(target):
 	myModule = module.Module(__file__, 'ewol', 'LIBRARY')
 	
 	# add extra compilation flags :
-	#myModule.add_extra_compile_flags()
+	myModule.add_extra_compile_flags()
 	# add the file to compile:
 	myModule.add_src_file([
 		'ewol/ewol.cpp',