Method openDInput

src/SFML/Window/Win32/JoystickImpl.cpp:515–825

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bool JoystickImpl::openDInput(unsigned int index)
{
    // Initialize DirectInput members
    m_device = nullptr;

    m_axes.fill(-1);
    m_buttons.fill(-1);

    m_deviceCaps        = {};
    m_deviceCaps.dwSize = sizeof(DIDEVCAPS);
    m_state             = JoystickState();
    m_buffered          = false;

    // Search for a joystick with the given index in the connected list
    for (const JoystickRecord& record : joystickList)
    {
        if (record.index == index)
        {
            // Create device
            HRESULT result = directInput->CreateDevice(record.guid, &m_device, nullptr);

            if (FAILED(result))
            {
                err() << "Failed to create DirectInput device: " << result << std::endl;

                return false;
            }

            // Get vendor and product id of the device
            auto property              = DIPROPDWORD();
            property.diph.dwSize       = sizeof(property);
            property.diph.dwHeaderSize = sizeof(property.diph);
            property.diph.dwHow        = DIPH_DEVICE;

            if (SUCCEEDED(m_device->GetProperty(DIPROP_VIDPID, &property.diph)))
            {
                m_identification.productId = HIWORD(property.dwData);
                m_identification.vendorId  = LOWORD(property.dwData);

                // Check if device is already blacklisted
                if (m_identification.productId && m_identification.vendorId)
                {
                    for (const JoystickBlacklistEntry& blacklistEntry : joystickBlacklist)
                    {
                        if ((m_identification.productId == blacklistEntry.productId) &&
                            (m_identification.vendorId == blacklistEntry.vendorId))
                        {
                            // Device is blacklisted
                            m_device->Release();
                            m_device = nullptr;

                            return false;
                        }
                    }
                }
            }

            // Get friendly product name of the device