Input

#include <Windows.h>
#include <stdio.h>

struct Record
{
    unsigned int Event, Key;

    long long int Time, Delta;
};

Record Records[1000];

unsigned int Count = 1;

long long int Time;

bool Keys[255];

LARGE_INTEGER GetFrequency()
{
    LARGE_INTEGER frequency;

    QueryPerformanceFrequency(&frequency);

    return frequency;
}

long long int GetTime()
{
    static LARGE_INTEGER frequency = GetFrequency();

    LARGE_INTEGER counter;

    QueryPerformanceCounter(&counter);

    return (1000000 * counter.QuadPart / frequency.QuadPart);
}

LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg)
    {
        /*
        case WM_KEYDOWN:

            if ((lParam & (1 << 30)) == 0)
            {
                Records[Count].Event = 1;
                Records[Count].Key = wParam;
                Records[Count].Time = GetTime();
                Records[Count].Delta = Records[Count].Time - Time;

                Time = Records[Count].Time;

                Count++;
            }

            break;

        case WM_KEYUP:

            Records[Count].Event = 0;
            Records[Count].Key = wParam;
            Records[Count].Time = GetTime();
            Records[Count].Delta = Records[Count].Time - Time;

            Time = Records[Count].Time;

            Count++;

            break;
        */

        case WM_INPUT:
        {
            unsigned int size;

            GetRawInputData((HRAWINPUT) lParam, RID_INPUT, NULL, &size, sizeof(RAWINPUTHEADER));

            unsigned char *data = new unsigned char[size];

            GetRawInputData((HRAWINPUT) lParam, RID_INPUT, data, &size, sizeof(RAWINPUTHEADER));

            RAWINPUT *raw = (RAWINPUT*) data;

            if (raw->header.dwType == RIM_TYPEKEYBOARD)
            {
                if (raw->data.keyboard.Flags & RI_KEY_BREAK)
                {
                    if (Keys[raw->data.keyboard.MakeCode])
                    {
                        Keys[raw->data.keyboard.MakeCode] = false;

                        Records[Count].Event = 0;
                        Records[Count].Key = raw->data.keyboard.MakeCode;
                        Records[Count].Time = GetTime();
                        Records[Count].Delta = Records[Count].Time - Time;

                        Time = Records[Count].Time;

                        Count++;
                    }
                }
                else
                {
                    if (!Keys[raw->data.keyboard.MakeCode])
                    {
                        Keys[raw->data.keyboard.MakeCode] = true;

                        Records[Count].Event = 1;
                        Records[Count].Key = raw->data.keyboard.MakeCode;
                        Records[Count].Time = GetTime();
                        Records[Count].Delta = Records[Count].Time - Time;

                        Time = Records[Count].Time;

                        Count++;
                    }
                }
            }

            break;
        }

        case WM_CLOSE:

            PostQuitMessage(EXIT_SUCCESS);

            return 0;
    }

    return DefWindowProc(hwnd, uMsg, wParam, lParam);
}

int CALLBACK WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    AllocConsole();

    freopen("CONIN$", "r", stdin);
    freopen("CONOUT$", "w", stdout);
    freopen("CONOUT$", "w", stderr);

    TCHAR className[] = TEXT("Window");

    WNDCLASS windowClass = {0};

    windowClass.lpfnWndProc = WindowProc;
    windowClass.hInstance = hInstance;
    windowClass.lpszClassName = className;

    RegisterClass(&windowClass);

    HWND handle = CreateWindow(className, TEXT("Input"), WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 640, 480, 0, 0, hInstance, 0);

    RAWINPUTDEVICE rid[1] = {0};

    rid[0].usUsagePage = 0x01;
    rid[0].usUsage = 0x06;
    rid[0].dwFlags = RIDEV_NOLEGACY;

    RegisterRawInputDevices(rid, 1, sizeof(rid[0]));

    ShowWindow(handle, nCmdShow);

    MSG message;

    while (GetMessage(&message, 0, 0, 0))
        DispatchMessage(&message);

    DestroyWindow(handle);

    UnregisterClass(className, hInstance);

    for (unsigned int i = 1; i < Count; i++)
        printf("%s %d %lld %lld %s\n", Records[i].Event ? "press  " : "release", Records[i].Key, Records[i].Time, Records[i].Delta,
        ((Records[i].Delta > 16000) && (Records[i].Event == Records[i - 1].Event)) ? "!" : "");

    getchar();

    FreeConsole();

    return message.wParam;
}