System Colour Picker

#include <iostream>
#include <iomanip>
#include <sstream>
#include <Windows.h>

std::string GetHexCode(unsigned char c) {
    std::stringstream ss;
    ss << std::uppercase << std::setw(2) << std::setfill('0') << std::hex;
    ss << +c;
    return ss.str();
}

std::string GetHexVal(COLORREF col) {
    return GetHexCode(GetRValue(col)) + GetHexCode(GetGValue(col)) + GetHexCode(GetBValue(col));
}

int main()
{
    std::cout << "System Colour Picker" << std::endl;

    ///// variables for getting the pixel colour from the mouse position /////
    POINT cursor;
    HDC hDc = GetDC(NULL);
    COLORREF col;

    ///// hiding the console cursor /////
    CONSOLE_CURSOR_INFO cursorInfo;
    GetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE), &cursorInfo);
    cursorInfo.bVisible = false;
    SetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE), &cursorInfo);

    while (1) {
        GetCursorPos(&cursor);
        col = GetPixel(hDc, cursor.x, cursor.y);
        std::cout << std::hex << "\r#" << GetHexVal(col);
        Sleep(0);
    }
}