+// Widget (attribute) properties
+const static char* ATTR_TOOLTIP = FEATURE_TOOLTIP;
+const static char* ATTR_ICON = FEATURE_ICON;
+const static char* ATTR_LABEL = "label";
+const static char* ATTR_DEFAULT = "default";
+const static char* ATTR_INTERNAL = "internal";
+const static char* ATTR_OBLIGATORY = "obligatory";
+const static char* ATTR_CONCEALMENT = "concealment";
+// WDG_INFO properties