來源:http://qt-project.org/doc/qt-4.8/qtbinding.html#calling-functionsQMetaObject :: invokeMethod中的理解論據 - QtQuick
QMetaObject :: invokeMethod (object, "myQmlFunction", Q_RETURN_ARG(QVariant, returnedValue), Q_ARG(QVariant, msg));
但是,函數的參數說:
來源:http://qt-project.org/doc/qt-4.8/qmetaobject.html#invokeMethod
bool QMetaObject::invokeMethod (QObject * obj, const char * member, Qt::ConnectionType
type, QGenericReturnArgument ret, QGenericArgument val0 = QGenericArgument(0),
QGenericArgument val1 = QGenericArgument(), QGenericArgument val2 = QGenericArgument(),
QGenericArgument val3 = QGenericArgument(), QGenericArgument val4 = QGenericArgument(),
QGenericArgument val5 = QGenericArgument(), QGenericArgument val6 = QGenericArgument(),
QGenericArgument val7 = QGenericArgument(), QGenericArgument val8 = QGenericArgument(),
QGenericArgument val9 = QGenericArgument()) [static]
所以,第三個參數給這個函數是:
Qt::ConnectionType
如何Q_RETURN_ARG (QVariant, returnedValue)
對應Qt::ConnectionType
?
啊!他們使用了不同的重載函數。謝謝。 –