C++ (Cpp) _Inout_updates_bytes_ примеры использования

Пример #1

Файл: client.cpp Проект: 0xhack/Windows-driver-samples

        status = pDevice->ClearHistoryBuffer();
        if (!NT_SUCCESS(status))
        {
            TraceError("ACT %!FUNC! ClearHistoryBuffer Failed %!STATUS!", status);
        }
        WdfWaitLockRelease(pDevice->m_HistoryLock);
    }

    SENSOR_FunctionExit(status);
    return status;
}

// Called by Sensor CLX to start retrieving history.
NTSTATUS ActivityDevice::OnStartHistoryRetrieval(
    _In_ SENSOROBJECT sensorInstance,
    _Inout_updates_bytes_(historySizeInBytes) PSENSOR_COLLECTION_LIST pHistoryBuffer,
    _In_ ULONG historySizeInBytes
    )
{
    NTSTATUS status = STATUS_SUCCESS;

    SENSOR_FunctionEnter();

    PActivityDevice pDevice = GetActivityContextFromSensorInstance(sensorInstance);
    if (nullptr == pDevice)
    {
        status = STATUS_INVALID_PARAMETER;
        TraceError("ACT %!FUNC! Sensor parameter is invalid. Failed %!STATUS!", status);
    }
    else
    {

Пример #2

Файл: client.cpp Проект: CM44/Windows-driver-samples

}



// Called by Sensor CLX to start retrieving history.
//
// Arguments:
//      SensorInstance: IN: 
//
// Return Value:
//      NTSTATUS code
//------------------------------------------------------------------------------
NTSTATUS
PedometerDevice::OnStartHistoryRetrieval(
    _In_ SENSOROBJECT SensorInstance,                                                 // sensor device object
    _Inout_updates_bytes_(HistorySizeInBytes) PSENSOR_COLLECTION_LIST pHistoryBuffer, // Pointer to a buffer containing the history elements
    _In_ ULONG HistorySizeInBytes                                                     // Size of the pHistoryBuffer buffer in bytes
    )
{
    PPedometerDevice pDevice = GetPedometerContextFromSensorInstance(SensorInstance);
    NTSTATUS Status = STATUS_SUCCESS;
    BOOLEAN IsLocked = FALSE;

    SENSOR_FunctionEnter();

    if (nullptr == pDevice)
    {
        Status = STATUS_INVALID_PARAMETER;
        TraceError("PED %!FUNC! Sensor(0x%p) parameter is invalid. Failed %!STATUS!", SensorInstance, Status);
        goto Exit;
    }