Hi,
we are trying to recover the QMetaType id from a class enum (Qt 5.5). It
seem to work into some .dll but not others.
We have a class with registered Qml class that have an enum registered too
like the following. It seem to work just fine into the QmlOtherObj but not
the QmlGlobalObject::enumString():
/////////////////////////////////
// QmlMyObj.moc.h into b.dll (require a.dll to compile b.dll), this is the
decalration of the enum
class QmlMyObj : public QObject
{
public:
enum class MethodModel
{
NoneModel = 0,
LinearModel,
AdditiveModel
};
Q_OBJECT;
Q_ENUM(MethodModel);
...
}
QML_DECLARE_TYPE(QmlMyObj)
Q_DECLARE_METATYPE(QmlMyObj::MethodModel);
/////////////////////////////////
// QmlOtherObj into b.dll, is the same lib usage
class QmlOtherObj : public Q_Object
{
public:
Q_INVOKABLE static void myFct()
{
// Work
int meta_type_id = QMetaType::type("QmlMyObj::MethodModel"); // meta type
id is 2699
}
};
/////////////////////////////////
// QmlGlobalObject into a.dll (doesn't known b.dll at compile time, but
application load both), wanted position to generalize the code for all the
code.
Q_INVOKABLE static void QmlGlobalObject::enumString(const QString&
enumeratorName, const int& enum_value)
{
// Work
{
int meta_type = QMetaType::type("QmlMyObj*"); // meta type is positif
number user type which is ok
const QMetaObject* mo = QMetaType::metaObjectForType(meta_type); // mo is
correct
int enum_index = mo->indexOfEnumerator("LinearModel"); // index is positif
QMetaEnum metaEnum = mo->enumerator(enum_index); // valid metaEnum
int enum_value = metaEnum.valueToKey(enum_value); // enum_value is 1
}
// Does not work
{
int meta_type_id = QMetaType::type("QmlMyObj::MethodModel");
// meta_type_id is 0 here and should be 2699
// I don't understand why the above work but not this one???
}
return result;
}
If anybody can shed some light why this ain't working I would be glad.
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Jerome Godbout
Software Developer
2035 rue du Haut-Bord, Québec, QC, Canada. G1N 4R7
T: +1 418 527-1388
E: jer...@bodycad.com
www.bodycad.com
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