Index: sources/canbus/messagedispatcher.cpp
===================================================================
diff -u -r1ec7b44e6d1d66460d2da943ff65f3c0c0755d8f -r805119c460b4a266d6401c8705f4427e7fbe270f
--- sources/canbus/messagedispatcher.cpp	(.../messagedispatcher.cpp)	(revision 1ec7b44e6d1d66460d2da943ff65f3c0c0755d8f)
+++ sources/canbus/messagedispatcher.cpp	(.../messagedispatcher.cpp)	(revision 805119c460b4a266d6401c8705f4427e7fbe270f)
@@ -73,8 +73,11 @@
  */
 void MessageDispatcher::quit()
 {
+    // coco begin validated: Application termination is not correctly done in coco!!!
+    // it has been tested and works perfectly fine in normal run.
     quitThread();
 }
+// coco end
 
 /*!
  * \brief Message Handler connections definition
@@ -125,11 +128,15 @@
  */
 void MessageDispatcher::quitThread()
 {
+    // coco begin validated: Application termination is not correctly done in coco!!!
+    // it has been tested and works perfectly fine in normal run.
+
     if ( ! _thread ) return;
 
     // runs in thread
     moveToThread(qApp->thread());
 }
+// coco end
 
 /*!
  * \brief   MessageDispatcher::onFrameReceive
@@ -157,11 +164,11 @@
     // TODO : must be moved to a MessageModel class
     if (mMessage.isComplete()) {
         rxCount();
-    #ifdef QT_DEBUG
-        if (_rxSequence != mMessage.sequence) {
-            qDebug() << tr("Out of Sync : %1 , %2").arg(_rxSequence).arg(mMessage.sequence);
-        }
-    #endif
+    //#ifdef QT_DEBUG
+    //    if (_rxSequence != mMessage.sequence) {
+    //        qDebug() << tr("Out of Sync : %1 , %2").arg(_rxSequence).arg(mMessage.sequence);
+    //    }
+    //#endif
         interpretMessage(mMessage);
     }
 }
@@ -212,7 +219,7 @@
     if (vSequence == 0) { // initialize
         // it's obvious that this assignment does not effect outside of the function.
         // but is make it easier to just assume the correct value has been passed
-        // and still using the function parameter as a local variable.
+        // and still using the same variable (function parameter) as a local variable.
         vSequence = _txSequence;
     }
 
@@ -362,14 +369,5 @@
  */
 bool MessageDispatcher::needsAcknow(GuiActionType vActionId)
 {
-    switch(vActionId) {
-    case GuiActionType::Acknow:
-        return false;
-    default:
-#ifdef DEBUG_ACKBACK_HD_TO_UI
-        return true;
-#else
-        return false;
-#endif
-    }
+    return _needsAcknow.contains(vActionId);
 }