{
if (!_initDone) {
for (int i = metaObject()->methodOffset(); i < metaObject()->methodCount(); i++) {
-#if QT_VERSION >= 0x050000
QString methodSignature = metaObject()->method(i).methodSignature();
-#else
- QString methodSignature = metaObject()->method(i).signature();
-#endif
if (methodSignature.startsWith("defaultHandler")) {
_defaultHandler = i;
continue;