Method QueryInterface

Feedback360/Feedback360.cpp:112–131

}

HRESULT Feedback360::QueryInterface(REFIID iid, LPVOID *ppv)
{
    CFUUIDRef interface = CFUUIDCreateFromUUIDBytes(kCFAllocatorDefault, iid);

    if(CFEqual(interface, kIOForceFeedbackDeviceInterfaceID))
        *ppv = &this->iIOForceFeedbackDeviceInterface;
    // IUnknown || IOCFPlugInInterface
    else if(CFEqual(interface, IUnknownUUID) || CFEqual(interface, kIOCFPlugInInterfaceID))
        *ppv = &this->iIOCFPlugInInterface;
    else
        *ppv = NULL;

    // Done
    CFRelease(interface);
    if ((*ppv) == NULL) return E_NOINTERFACE;
    else {
        this->iIOCFPlugInInterface.pseudoVTable->AddRef(*ppv);
    }
    return FF_OK;
}

ULONG Feedback360::AddRef()
{