Important Update:

- DeviceCore:
  - Allow different event output types: None, Simple or JSON
  - Add date & time to JSON events

DeviceCore.h

@@ -20,12 +20,14 @@
 // Enumerated types
 typedef enum { dtNone = 0, dtBool = 1, dtUnsigned16 = 2, dtSigned16 = 3, dtUnsigned32_HL = 4, dtUnsigned32_LH = 5,
                dtSigned32_HL = 6, dtSigned32_LH = 7, dtFloat32_L = 8, dtFloat32_B = 9, dtString = 10 } EDeviceDataType;
-
-// Constants
 const char DataTypeCount      = 10;
 const char DataTypeName[][20] = { "None", "Boolean", "Unsigned16", "Signed16", "Unsigned32_HL", "Unsigned32_LH",
                                   "Signed32_HL", "Signed32_LH", "Float32_L", "Float32_B", "String" };
 
+typedef enum  { et_None = 0, et_Simple = 1, et_JSON = 2 } EEventType;
+const char EventTypeCount      = 3;
+const char EventTypeName[][10] = { "None", "Simple", "JSON" };
+
 //---------------------------------------------------------------------------
 
 // Structure prototypes
@@ -152,6 +154,12 @@ protected:
     int         PollRetry           = 0;        // No of polling retries that has timed out
     int         MaxRetries          = 3;        // Max allowed retries
 
+    // Event output
+    EEventType  EventOutputType     = et_None;
+    CDataMember * EventData         = NULL;
+    const int   EventMsgLen         = 1000;
+    char        EventMsg[1000]      = {0};
+
     // Manage Devices
     bool     DestroyDevice( TDevice ** Device );
 
@@ -298,6 +306,12 @@ protected:
             if (!strcasecmp( TypeName, DataTypeName[Type]))  break;
         return (Type == DataTypeCount)? dtNone : (EDeviceDataType)Type;
     }
+    inline EEventType  GetEventType( const char * TypeName ) {
+        int  Type;
+        for (Type = 0; Type < EventTypeCount; Type++)
+            if (!strcasecmp( TypeName, EventTypeName[Type]))  break;
+        return (Type == EventTypeCount)? et_None : (EEventType)Type;
+    }
 
     bool CompareParamString( const char * ParamValue, const int ParamLen, const char * Value, const int Len );