HRESULT TestJson()
{
HRESULT hr;
HSTRING className;
IfFailedReturn(WindowsCreateString(
RuntimeClass_Windows_Data_Json_JsonObject,
wcslen(RuntimeClass_Windows_Data_Json_JsonObject),
&className));
IInspectable* inspectable;
IfFailedReturn(RoActivateInstance(className, &inspectable));
ULONG iidCount;
IID* iids;
IfFailedReturn(inspectable->GetIids(&iidCount, &iids));
wprintf(L"Iids: %d\r\n", iidCount);
IJsonValue* jsonValue;
IfFailedReturn(inspectable->QueryInterface(__uuidof(jsonValue), reinterpret_cast<void**>(&jsonValue)));
HSTRING jsonString;
IfFailedReturn(jsonValue->Stringify(&jsonString));
// TODO: Confirm that length parameter is required. I heard it is needed beacuase it is not guaranteed that the
// PCWSTR will end on null character.
UINT32 length;
const wchar_t* rawJsonString;
rawJsonString = WindowsGetStringRawBuffer(jsonString, &length);
wprintf(L"Stringify: %s \r\nlength: %d\r\n", rawJsonString, length);
IfFailedReturn(WindowsDeleteString(className));
IfFailedReturn(WindowsDeleteString(jsonString));
return S_OK;
}
