#define X_INPUT_GET_STATE(name) DWORD WINAPI name(DWORD dwUserIndex, XINPUT_STATE *pState)
typedef X_INPUT_GET_STATE(x_input_get_state);
X_INPUT_GET_STATE(XInputGetStateStub)
{
	return(0);
}
global_variable x_input_get_state *XInputGetState_ = XInputGetStateStub;
#define XInputGetState XInputGetState_

#define X_INPUT_SET_STATE(name) DWORD WINAPI name(DWORD dwUserIndex, XINPUT_VIBRATION* pVibration)
typedef X_INPUT_SET_STATE(x_input_set_state);
X_INPUT_SET_STATE(XInputSetStateStub)
{
	return(0);
}
global_variable x_input_set_state *XInputSetState_ = XInputSetStateStub;
#define XInputSetState XInputSetState_

internal void
Win32LoadXInput(void)
{
	HMODULE XInputLibrary = LoadLibraryA("xinput1_3.dll");
	if(XInputLibrary)
	{
		XInputGetState = (x_input_get_state *)GetProcAddress(XInputLibrary, "XInputGetState");
		XInputSetState = (x_input_set_state *)GetProcAddress(XInputLibrary, "XInputSetState");
	}
}

...

int CALLBACK
WinMain(HINSTANCE Instance,
        HINSTANCE PrevInstance,
        LPSTR CommandLine,
        int ShowCode)
{
	Win32LoadXInput();

...


for(DWORD ControllerIndex = 0; ControllerIndex < XUSER_MAX_COUNT; ++ControllerIndex)
{
	XINPUT_STATE ControllerState;
	if(XInputGetState(ControllerIndex, &ControllerState) == ERROR_SUCCESS)
	{
		//NOTE: Controller plugged in
		XINPUT_GAMEPAD *Pad = &ControllerState.Gamepad;

		bool Up = (Pad->wButtons & XINPUT_GAMEPAD_DPAD_UP);
		bool Down = (Pad->wButtons & XINPUT_GAMEPAD_DPAD_DOWN);
		bool Left = (Pad->wButtons & XINPUT_GAMEPAD_DPAD_LEFT);
		bool Right = (Pad->wButtons & XINPUT_GAMEPAD_DPAD_RIGHT);
		bool Start = (Pad->wButtons & XINPUT_GAMEPAD_START);
		bool Back = (Pad->wButtons & XINPUT_GAMEPAD_BACK);
		bool LeftShoulder = (Pad->wButtons & XINPUT_GAMEPAD_LEFT_SHOULDER);
		bool RightShoulder = (Pad->wButtons & XINPUT_GAMEPAD_RIGHT_SHOULDER);
		bool AButton = (Pad->wButtons & XINPUT_GAMEPAD_A);
		bool BButton = (Pad->wButtons & XINPUT_GAMEPAD_B);
		bool XButton = (Pad->wButtons & XINPUT_GAMEPAD_X);
		bool YButton = (Pad->wButtons & XINPUT_GAMEPAD_Y);

		int16 StickX = Pad->sThumbLX;
		int16 StickY = Pad->sThumbLY;

		if(AButton)
		{
		YOffset += 2;
		}

	}

	else
	{
		//NOTE: Controller not plugged in
	}
}