使用 C# 获取磁盘空间的方法：
public async static Task<int> GetFreeSpace()
{
StorageFolder localFolder = ApplicationData.Current.LocalFolder;
var properties = await localFolder.GetBasicPropertiesAsync();
var filteredProperties = await properties.RetrievePropertiesAsync(new[] { "System.FreeSpace" });
string freeSpace = filteredProperties["System.FreeSpace"].ToString();
ulong size;
int mb = ;
if (ulong.TryParse(freeSpace, out size))
mb = (int)(size / ( * )); return mb;
}
不过使用 C++ 比较麻烦，在网页上没有搜到，在微软 Github-（https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples） 上的 demo（FileAccess）中，找到了使用方式，改造了一下：
auto folder = Windows::Storage::ApplicationData::Current->LocalFolder;
auto outputText = std::make_shared<String^>("Space: " + folder->Name);
// Get basic properties
create_task(folder->GetBasicPropertiesAsync()).then([this, outputText](task<BasicProperties^> task)
{
try
{
BasicProperties^ basicProperties = task.get();
*outputText += "\nFile size: " + basicProperties->Size.ToString() + " bytes";
}
catch (COMException^ ex)
{
//rootPage->HandleFileNotFoundException(ex);
}
}).then([this, folder]()
{
// Get extra properties
auto propertiesName = ref new Vector<String^>();
propertiesName->Append(L"System.FreeSpace");
propertiesName->Append(L"System.Capacity");
return folder->Properties->RetrievePropertiesAsync(propertiesName);
}).then([this, outputText](IMap<String^, Object^>^ extraProperties)
{
auto propValue = extraProperties->Lookup(L"System.FreeSpace");
if (propValue != nullptr)
{
*outputText += "\n FreeSpace: " + propValue;
}
auto propValue2 = extraProperties->Lookup(L"System.Capacity");
if (propValue2 != nullptr)
{
*outputText += "\n Capacity: " + propValue2;
}
});