在 C++/WinRT 中，我手工编写了一些这样的类（不使用 idls）：
class GenericController: public winrt::Windows::Foundation::IInspectable {
...
}
class BackgroundController1: public winrt::implements<BackgroundController1, GenericController> {
...
}
我创建这样的对象：
auto controller = winrt::make<BackgroundController1>();
对于派生自 winrt:implements<BackgroundControllerX, GenericController> 的每个类，我都收到以下错误：
Error C3668 'winrt::impl::produce_base<D,I,void>::QueryInterface': method with override specifier 'override' did not override any base class methods C:\Program Files (x86)\Windows Kits\10\Include\10.0.18362.0\cppwinrt\winrt\base.h 8016
Error C3668 'winrt::impl::produce_base<D,I,void>::AddRef': method with override specifier 'override' did not override any base class methods C:\Program Files (x86)\Windows Kits\10\Include\10.0.18362.0\cppwinrt\winrt\base.h 8021
Error C3668 'winrt::impl::produce_base<D,I,void>::Release': method with override specifier 'override' did not override any base class methods C:\Program Files (x86)\Windows Kits\10\Include\10.0.18362.0\cppwinrt\winrt\base.h 8026
Error C3668 'winrt::impl::produce_base<D,I,void>::GetIids': method with override specifier 'override' did not override any base class methods C:\Program Files (x86)\Windows Kits\10\Include\10.0.18362.0\cppwinrt\winrt\base.h 8031
Error C3668 'winrt::impl::produce_base<D,I,void>::GetRuntimeClassName': method with override specifier 'override' did not override any base class methods C:\Program Files (x86)\Windows Kits\10\Include\10.0.18362.0\cppwinrt\winrt\base.h 8036
Error C3609 'winrt::impl::produce_base<D,I,void>::GetTrustLevel': a 'final' function must be virtual C:\Program Files (x86)\Windows Kits\10\Include\10.0.18362.0\cppwinrt\winrt\base.h 8041
Error C2440 'initializing': cannot convert from 'initializer list' to 'GenericController' (compiling source file C:\Users\...\BackgroundController1.cpp) C:\Program Files (x86)\Windows Kits\10\Include\10.0.18362.0\cppwinrt\winrt\base.h 8814
这是输出日志：
error C3668: 'winrt::impl::produce_base<D,I,void>::QueryInterface': method with override specifier 'override' did not override any base class methods
1> with
1> [
1> D=`anonymous-namespace'::BackgroundController1,
1> I=GenericController
1> ]
1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\cppwinrt\winrt/base.h(7737): note: see reference to class template instantiation 'winrt::impl::produce_base<D,I,void>' being compiled
1> with
1> [
1> D=`anonymous-namespace'::BackgroundController1,
1> I=GenericController
1> ]
1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\cppwinrt\winrt/base.h(8005): note: see reference to class template instantiation 'winrt::impl::produce<D,I>' being compiled
1> with
1> [
1> D=`anonymous-namespace'::BackgroundController1,
1> I=GenericController
1> ]
1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\cppwinrt\winrt/base.h(7685): note: see reference to class template instantiation 'winrt::impl::producer<D,GenericController,void>' being compiled
1> with
1> [
1> D=`anonymous-namespace'::BackgroundController1
1> ]
1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\cppwinrt\winrt/base.h(8829): note: see reference to class template instantiation 'winrt::impl::producers_base<D,std::tuple<GenericController>>' being compiled
1> with
1> [
1> D=`anonymous-namespace'::BackgroundController1
1> ]
1>note: see reference to class template instantiation 'winrt::implements<`anonymous-namespace'::BackgroundController1,GenericController>' being compiled
1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\cppwinrt\winrt/base.h(10615): note: see reference to class template instantiation 'winrt::com_ptr<winrt::impl::IContextCallback>' being compiled
1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\cppwinrt\winrt/base.h(10349): note: see reference to class template instantiation 'winrt::com_ptr<winrt::impl::IServerSecurity>' being compiled
1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\cppwinrt\winrt/base.h(10308): note: see reference to class template instantiation 'std::chrono::time_point<winrt::clock,winrt::Windows::Foundation::TimeSpan>' being compiled
1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\cppwinrt\winrt/base.h(6462): note: see reference to class template instantiation 'winrt::com_ptr<winrt::impl::IMarshal>' being compiled
1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\cppwinrt\winrt/base.h(210): note: see reference to class template instantiation 'std::array<uint8_t,8>' being compiled
看起来类的编写方式和对象的创建方式可能有问题。但我无法弄清楚是什么或为什么。