问如何将程序转换为.dll文件并使用rundll32.exe在cmd中运行？

EN

 #define _CRT_SECURE_NO_WARNINGS
#include<windows.h>
#include <stdlib.h>
#include<process.h>
#include<stdio.h>
#include<string>
#include<ctime>
#include<vector>
#include<iostream>

typedef struct {
    std::string info;
    unsigned int m_number;
    int m_stop_thread;
    int m_priority_thread;
    unsigned m_cycles;
    unsigned m_currentThread;
}data;
HANDLE tmp;
unsigned int __stdcall Func(void* d) {
    data* real = (data*)d;
    std::cout << "\nCurrent thread ID: " << GetCurrentThreadId() << std::endl;
    if (real->m_currentThread == real->m_priority_thread)
        SetThreadPriority(tmp, 2);
        std::cout << "Thread priority: " << GetThreadPriority(tmp) << std::endl;
    for (int j = (real->m_currentThread - 1) * real->m_cycles / real->m_number;j < real->m_currentThread * real->m_cycles / real->m_number;j++) {
        for (int i = 0;i < real->info.size();++i)
            std::cout << real->info[i];
        std::cout << std::endl;
    }
    return 0;
}

int main(int argc, char* argv[]) {
    int threadsNumber, priority, stop;
    std::string str;
    std::cout << "Enter the info about a student:\n";
    std::getline(std::cin, str);
    std::cout << "Enter the number of threads:\n";
    std::cin >> threadsNumber;
    int cycles;
    std::cout << "Enter the number of cycles:\n";
    std::cin >> cycles;
    std::cout << "Which thread priority do you want to change? ";
    std::cin >> priority;
    std::cout << "Which thread do you want to stop? ";
    std::cin >> stop;
    std::vector<HANDLE> threads;

    data* args = new data;
    args->info = str;
    args->m_number = threadsNumber;
    args->m_cycles = cycles;
    args->m_priority_thread = priority;
    args->m_stop_thread = stop;
    clock_t time = clock();
    for (int i = 1;i <= threadsNumber;++i) {
        args->m_currentThread = i;
        tmp = (HANDLE)_beginthreadex(0, 0, &Func, args, 0, 0);

        threads.push_back(tmp);
    }
    WaitForMultipleObjects(threads.size(), &threads.front(), TRUE, INFINITE);
    time = clock() - time;
    std::cout << "time: " << (double)time / CLOCKS_PER_SEC << "s" << std::endl << std::endl;
    getchar();
    return 0;
}