C++ (Cpp) QueryIQueueCallbackDeviceIoControl Examples

Example #1

File: queue.cpp Project: 340211173/Windows-driver-samples

HRESULT
STDMETHODCALLTYPE
CSimdeviceQueue::QueryInterface(
    _In_ REFIID InterfaceId,
    _Out_ PVOID *Object
    )
/*++

Routine Description:


    Query Interface

Arguments:
    
    Follows COM specifications

Return Value:

    HRESULT indicating success or failure

--*/
{
    HRESULT hr;


    if (IsEqualIID(InterfaceId, __uuidof(IQueueCallbackWrite))) {
        *Object = QueryIQueueCallbackWrite(); 
        hr = S_OK;
    } else if (IsEqualIID(InterfaceId, __uuidof(IQueueCallbackRead))) {
        *Object = QueryIQueueCallbackRead();
        hr = S_OK;
    } else if (IsEqualIID(InterfaceId, __uuidof(IQueueCallbackDeviceIoControl))) {
        *Object = QueryIQueueCallbackDeviceIoControl();
        hr = S_OK;
    } else {
        hr = CUnknown::QueryInterface(InterfaceId, Object);
    }

    return hr;
}

Example #2

File: ControlQueue.cpp Project: accesine/osrusbfx2

HRESULT
STDMETHODCALLTYPE
CMyControlQueue::QueryInterface(
    __in REFIID InterfaceId,
    __out PVOID *Object
    )
/*++

Routine Description:


    Query Interface

Aruments:
    
    Follows COM specifications

Return Value:

    HRESULT indicatin success or failure

--*/
{
    HRESULT hr;


    if (IsEqualIID(InterfaceId, __uuidof(IQueueCallbackDeviceIoControl))) 
    {
        hr = S_OK;
        *Object = QueryIQueueCallbackDeviceIoControl(); 

    } 
    else 
    {
        hr = CMyQueue::QueryInterface(InterfaceId, Object);
    }

    return hr;
}