Question

我试图在c＃windows store app project中创建一个C ++ Runtime组件;

我创建了一个新项目C ++ - ＆gt; Windows应用商店应用 - ＆gt; Windows运行时组件。新项目具有默认的class1。

这就是我想要做的事情，我得到错误：

Class1.h：

public ref class Class1 sealed
{
public:
    Class1();
            Windows::Foundation::IAsyncOperation<Windows::UI::Xaml::Media::Imaging::BitmapImage^>^ StreamToBitmap(Windows::Storage::Streams::IRandomAccessStream^ fileStream);

};

Class1.cpp：

Class1::Class1()
{
}



IAsyncOperation<BitmapImage^>^ StreamToBitmap(IRandomAccessStream^ fileStream)
{
    return create_async([=]()
    {
        auto bitmapImage = ref new BitmapImage();
        bitmapImage->SetSource(fileStream);
        return bitmapImage;

    });

}

错误

错误2错误LNK2019：未解析的外部符号“public：virtual struct Windows :: Foundation :: IAsyncOperation ^ cdecl TestRuntimeC_ toCS :: Class1 :: [TestRuntimeC _toCS :: _ IClass1PublicNonVirtuals] :: LoadImage（struct Windows :: Storage :: Streams :: IRandomAccessStream ^）“（？LoadImage @？Q _IClass1PublicNonVirtuals @ TestRuntimeC__toCS @@ Class1 @ 2 @ U $ AAAP $ AAU？$ IAsyncOperation @ P $ AAVBitmapImage @ Imaging @ Media @ Xaml @ UI @Windows @@@ Foundation @ Windows @@ P $ AAUIRandomAccessStream @ Streams @ Storage @ 6 @@ Z）在函数“public：virtual long _ stdcall TestRuntimeC _toCS :: Class1 :: [TestRuntimeC_ toCS :: _IClass1PublicNonVirtuals] :: __ abi_TestRuntimeC__toCS IClass1PublicNonVirtuals _abi_LoadImage（struct Windows :: Storage :: Streams：：IRandomAccessStream ^，struct Windows :: Foundation :: IAsyncOperation ^ *）“（？__ abi_TestRuntimeC__toCS IClass1PublicNonVirtuals ___ abi_LoadImage @？Q_ IClass1PublicNonVirtuals @ TestRuntimeC _toCS @@ Class1 @ 2 @ U $ AAGJP $ AAUIRandomAccessStream @ Streams @ Storage @Windows @@ PAP $ AAU？$ IAsyncOperation @ P $ AAVBitmapImage @ Imaging @ Media @ Xaml @ UI @Windows @@@ Foundation @ 7 @@ Z）C：\ Users \ Stamatis \ Documents \ Visual Studio 2013 \ Projects \ TestRuntimeC ++ toCS \ TestRuntimeC ++ toCS \ Class1.obj TestRuntimeC ++ toCS

IAsyncOperation <的BitmapImage> ^ </的BitmapImage>

0 个答案: