Считать содержимое файла в строковый массив

ifstream file ("1.txt");
string line;
int x = 0;
while (getline(file, line))
    {
        x++;
    }
string *mass = new string[x];

names->push_back(str);

Error   1   error C2664: 'void std::vector<std::string,std::allocator<_Ty>>::push_back(const std::basic_string<char,std::char_traits<char>,std::allocator<char>> &)' : cannot convert argument 1 from 'wchar_t [512]' to 'std::basic_string<char,std::char_traits<char>,std::allocator<char>> &&'   d:\c++\consoleapplication1\consoleapplication1\main.cpp 17  1   ConsoleApplication1
 
    2   IntelliSense: no instance of overloaded function "std::vector<_Ty, _Alloc>::push_back [with _Ty=std::string, _Alloc=std::allocator<std::string>]" matches the argument list
            argument types are: (wchar_t [512])
            object type is: std::vector<std::string, std::allocator<std::string>>   d:\c++\ConsoleApplication1\ConsoleApplication1\main.cpp 17  9   ConsoleApplication1

#include <iostream>
#include <string>
#include <fstream>
#include <vector>
#include <windows.h>
using namespace std;
 
BOOL CALLBACK EnumWindowsProc(HWND hwnd, LPARAM lParam)
{
    std::vector<std::string>* names = (std::vector<std::string>*) lParam;
 
    if (IsWindowVisible(hwnd) && (!GetWindow(hwnd, GW_OWNER)))
    {
        char str[512] = { 0 };
        if (GetWindowTextA(hwnd, str, 511))
        {
            names->push_back(str);
        }
    }
 
    return 1;
}
 
int main()
{
    setlocale(LC_ALL, "Rus");
    vector<string> strings;
    ifstream file ("config.cfg");
    string line;
    while (!std::getline(file, line).eof())
        strings.push_back(line);
    strings.push_back(line);
    file.close();
    copy(strings.begin(), strings.end(), ostream_iterator<string>(cout, "\n"));
 
        vector<string> names;
        EnumWindows(&EnumWindowsProc, (LPARAM)&names);
        ostream_iterator<std::string, char> out(cout, "\n");
        copy(names.begin(), names.end(), out);
 
        for (int i=0; i < names.size(); i++)
            for (int j = 0; j < strings.size(); ++j)
                if (names[i] == strings[j]) cout << "Ok: " << names[i] << "\n";
 
    system("pause>>null");
    return 0;
}

    for (;;)
    {
        vector<string> names;
        EnumWindows(&EnumWindowsProc, (LPARAM)&names);
        ostream_iterator<std::string, char> out(cout, "\n");
        for (int i = 0; i < names.size(); i++)
        for (int j = 0; j < strings.size(); ++j)
        if (names[i] == strings[j])
        {
            file_log << names[i] << endl;
        }
    }