HRESULT XGameSaveGetRemainingQuota(  
         XGameSaveProviderHandle provider,  
         int64_t* remainingQuota  
)  

void Sample::_GetQuotaSync(uint64_t* remainingQuota) 
{ 
    HRESULT hr = XGameSaveGetRemainingQuota(_provider, remainingQuota); 
    if (FAILED(hr)) 
    { 
        printf("Error retrieving Quota hr=0x%08x\n", hr); 
    } 
}