c++ com port list
#include <iostream>
#include <string>
#include <Windows.h>
bool SelectComPort() //added function to find the present serial
{
char lpTargetPath[5000]; // buffer to store the path of the COMPORTS
bool gotPort = false; // in case the port is not found
for (int i = 0; i < 255; i++) // checking ports from COM0 to COM255
{
std::string str = "COM" + std::to_string(i); // converting to COM0, COM1, COM2
DWORD test = QueryDosDevice(str.c_str(), lpTargetPath, 5000);
// Test the return value and error if any
if (test != 0) //QueryDosDevice returns zero if it didn't find an object
{
std::cout << str << ": " << lpTargetPath << std::endl;
gotPort = true;
}
if (::GetLastError() == ERROR_INSUFFICIENT_BUFFER)
{
}
}
return gotPort;
}