STD::文件系统::C++/CX UWP应用程序中的DirectoyyType不能找到目录?

我正在编写一个跨平台的应用程序,所以我想我会用C++/CX RESP来做XAML中的UI。可可,核心是标准C++。但是,我在访问文档时遇到问题。

我提出 FolderPicker 走这条路然后把它 directory_iterator ,但目录迭代器找不到任何文件,如果我调用 exists() 在路上,上面写着 false 是的。

我一直在谷歌上下搜索,但网络上的每件事都告诉我,一旦我有了SurraseFoogle,我就可以访问这些文件,而且没有任何东西可以引用标准的C++ 17 API。

我要做什么才能让标准库访问这些文件?

我使用以下命令打开文件选取器:

FolderPicker    ^picker = ref new FolderPicker;
picker->FileTypeFilter->Append( "*" );
IAsyncOperation<StorageFolder ^> ^storageFolderOp = picker->PickSingleFolderAsync();
auto asyncTask = concurrency::create_task(storageFolderOp);
asyncTask.then([this](StorageFolder ^storageFolder)
               {
                   cout << "Picked directory: " << StdStringFromString(storageFolder->Path) << endl;
                   commandsPathField->Text = storageFolder->Path;
               });

接受此字符串的代码(作为 std::string )并尝试列出该目录中的文件:

path    commandsFolderPath(inFolderPath);
if (exists(commandsFolderPath))
{
    directory_iterator    directoryIterator(commandsFolderPath);
    for ( ; directoryIterator != directory_iterator(); ++directoryIterator )
    {
        const directory_entry& currFile = *directoryIterator;
        if (currFile.path().filename().string().compare("data") == 0 || currFile.path().filename().string().find(".") == 0)
        {
            continue;
        }
        load_one_command_folder(currFile.path().string());
    }
}
else
{
    cout << "No directory " << commandsFolderPath.string() << endl;
}

以及我的清单:

<Package
  xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10"
  xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest"
  xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10"
  xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities"
  IgnorableNamespaces="uap mp rescap">

  <Identity
    Name="69b58249-31af-4bb3-95f4-fd339268a557"
    Publisher="CN=Uli"
    Version="1.0.0.0" />

  <mp:PhoneIdentity PhoneProductId="69b58249-31af-4bb3-95f4-fd339268a557" PhonePublisherId="00000000-0000-0000-0000-000000000000"/>

  <Properties>
<DisplayName>VanguardBotGUI</DisplayName>
<PublisherDisplayName>Uli Kusterer</PublisherDisplayName>
<Logo>Assets\StoreLogo.png</Logo>
  </Properties>
  <Dependencies>
    <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.0.0" MaxVersionTested="10.0.0.0" />
  </Dependencies>
  <Resources>
    <Resource Language="x-generate" />
  </Resources>
  <Applications>
    <Application Id="App"
      Executable="$targetnametoken$.exe"
      EntryPoint="vanguardbot_win.App">
      <uap:VisualElements
        DisplayName="vanguardbot_win"
        Square150x150Logo="Assets\Square150x150Logo.png"
        Square44x44Logo="Assets\Square44x44Logo.png"
        Description="vanguardbot_win"
        BackgroundColor="transparent">
        <uap:DefaultTile Wide310x150Logo="Assets\Wide310x150Logo.png"/>
        <uap:SplashScreen Image="Assets\SplashScreen.png" />
      </uap:VisualElements>
    </Application>
  </Applications>
  <Capabilities>
    <Capability Name="internetClient" />
    <Capability Name="internetClientServer" />
    <rescap:Capability Name="appDiagnostics" />
  </Capabilities>
</Package>

完整代码在 https://github.com/uliwitness/vanguardbot 如果您想运行它并逐步完成(只需为ui设置用户名/密码,失败就在这之前)。相关文件包括 windows/MainPage.xaml.cpp ( vanguardbot_win::MainPage::FolderPicker_Click )我是说, common/vanguardbot.cpp ( vanguardbot::connect )以及 vanguardbot/windows/Package.appxmanifest .解决办法是 vanguardbot_win.sln 在最高层。