Calls IsTextUnicode from the WinAPI to figure out whether or not a text is recognized as Unicode. Meant for use in Windows XP.

IsTextUnicode.cpp

#include "stdafx.h"
#include <windows.h>
#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
	cout << "\r\n";
	if (argc != 2) {
		cout << "     Usage: " << argv[0] << " \"Text to verify\"\r\n\r\n";
		return 1;
	}
	char* string_to_check = argv[1];
	char* result = IsTextUnicode(string_to_check, strlen(string_to_check), NULL) == 1 ? "YES" : "NO";
	cout << "            String: " << string_to_check << endl;
	cout << "     IsTextUnicode: " << result;
	std::cout << "\r\n\r\n";
	return 0;
}

does it work on windows 11