Index: sources/main.h
===================================================================
diff -u -r5e03d3f26ea0c88562e430c4b8192dd745fa1011 -re8df7fe7fe6274c416f176369250b9581e07d2a5
--- sources/main.h	(.../main.h)	(revision 5e03d3f26ea0c88562e430c4b8192dd745fa1011)
+++ sources/main.h	(.../main.h)	(revision e8df7fe7fe6274c416f176369250b9581e07d2a5)
@@ -111,8 +111,14 @@
 #define SKIPPER_RST                         \
     skipperCounter = 0
 //--------------------------------------------------------------------------------//
+#define DEBUG_PROPERTY_CHANGED(vVARIABLE, PREFIX) // qDebug() << "#" << #vVARIABLE << PREFIX##vVARIABLE;
 //--------------------------------------------------------------------------------//
-#define DEBUG_PROPERTY_CHANGED(vVARIABLE, PREFIX)  // qDebug() << "#" << #vVARIABLE << PREFIX##vVARIABLE;
+#define FROMVARIANT(vVARIABLE, vGROUP, vKEY, vCONVERSION)                                   \
+{                                                                                           \
+    bool ok = false;                                                                        \
+    vVARIABLE( _Settings.value(mCategory, vGROUP, vKEY).to##vCONVERSION(&ok) );             \
+    if ( !ok ) LOG_DEBUG("incorrect configuration value for " #vVARIABLE);                  \
+}
 //--------------------------------------------------------------------------------//
 #define PROPERTY_SLOT(          vTYPE ,    vVARIABLE )                  \
     protected :                                                         \