IGameInputDevice::GetDisplayName

uint32_t GetDisplayName(
    uint32_t bufferByteCount,
    char* buffer
);

std::string GetDeviceDisplayName(IGameInputDevice* device)
{
    const uint32_t size = device->GetDisplayName(0, nullptr);
    if (size == 0)
    {
        return {};
    }

    std::vector<char> buffer(size);
    device->GetDisplayName(size, buffer.data());

    return std::string(buffer.data());
}