在不使用popen()或system()的情况下按名称查找进程的PID

#include<boost/process.hpp>
#include<boost/process/environment.hpp>
#include<iostream>
#include<string>

int main() {
    std::string process_name = "notepad.exe";
    boost::process::context ctx;
    boost::process::environment env = ctx.environment();
    std::string cmd = "WMIC PROCESS WHERE \"name='" + process_name + "'\" GET ProcessId";
    boost::process::ipstream is;
    boost::process::child c(cmd, boost::process::std_out > is);
    std::string pid;
    is >> pid;
    std::cout << "PID of "<< process_name << " is "<< pid<< std::endl;
    return 0;
}

#include<windows.h>
#include <tlhelp32.h>
#include<iostream>
#include<string>

int main() {
    std::string process_name = "notepad.exe";
    HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
    PROCESSENTRY32 process_entry;
    process_entry.dwSize = sizeof(PROCESSENTRY32);
    if (Process32First(snapshot, &process_entry)) {
        do {
            if (process_entry.szExeFile == process_name) {
                std::cout << "PID of "<< process_name << " is "<< process_entry.th32ProcessID<< std::endl;
                break;
            }
        } while (Process32Next(snapshot, &process_entry));
    }
    CloseHandle(snapshot);
    return 0;
}