Porting from Windows.XBOX.Input to GameInput

void PollGamepadInput()
{
    // Find all gamepads.
    IVectorView<IGamepad^>^ gamepads = Gamepad::GetGamepads();

    // Cycle through each gamepad.
    for ( unsigned int i = 0; i < gamepads->Size; ++i )
    {
        // Get the gamepad's current reading.
        IGamepadReading^ reading = gamepads->GetAt(i)->GetCurrentReading();

        if ( reading->IsAPressed )
        {
            // Logic for the A button being pressed.
        }
    }
}

IGameInput* g_gameInput = nullptr;

HRESULT InitializeInput()
{
    return GameInputCreate(&g_gameInput);
}

void PollGamepadInput()
{
    ComPtr<IGameInputReading> reading;

    // Get the most current gamepad reading, not filtering by a specific device.
    // An error from the GetReading method indicates that no gamepad readings
    // were found.
    if (SUCCEEDED(g_gameInput->GetCurrentReading(GameInputKindGamepad, nullptr, &reading)))
    {
        // Read the gamepad state.
        GameInputGamepadState state;
        reading->GetGamepadState(&state);

        if (state.buttons & GameInputGamepadA)
        {
            // Logic for the A button being pressed.
        }
    }
}