How To Create One Line In C++ a Colour

They could be set up however they will best serve, it
doesn’t need to ,or indeed probably shouldn’t,
be set up exactly how I did it.

Edit: I should also say that there are probably
perfectly good libraries around to do exactly this.

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

bool GotoCell(int,int);
bool ChangeColour(unsigned short, unsigned short);
bool ColourLine(unsigned short, unsigned short, unsigned short);



int main()
{
    //set up a new console window
    FreeConsole();
    AllocConsole();
    

    ColourLine(14, 5, 2);
    ChangeColour(14,5);
    GotoCell(0,2);
    std::cout << "No propper bounds checking - returns false if there is an error";
    GotoCell(0,5);
    std::cout << "press enter to exit";
    
    
    std::cin.ignore();
    return 0;
}



bool GotoCell(int xpos, int ypos)
{
    //Get the console output handle
    HANDLE hConsoleOutput;
    hConsoleOutput = CreateFile("CONOUT$", GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
    if (hConsoleOutput == INVALID_HANDLE_VALUE)
    {
        return false;
    }
    
    //set the cursor position
    COORD coCellCoord;
    coCellCoord.X = xpos;
    coCellCoord.Y = ypos;
    if (!SetConsoleCursorPosition(hConsoleOutput, coCellCoord))
    {
        return false;
    }
    return true;
}

bool ChangeColour(unsigned short FGC, unsigned short BGC)
{
    //only 16 colours
    if (FGC > 15 || BGC > 15)
    {
        return false;
    }

    //Get the console output handle
    HANDLE hConsoleOutput;
    hConsoleOutput = CreateFile("CONOUT$", GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
    if (hConsoleOutput == INVALID_HANDLE_VALUE)
    {
        return false;
    }

    //change the colours
    if (!SetConsoleTextAttribute(hConsoleOutput, ((BGC & 0x0F) << 4) + (FGC & 0x0F)))
    {
        return false;
    }
    return true;
}


bool ColourLine(unsigned short FGC, unsigned short BGC, unsigned short ypos)
{
    //only 16 colours
    if (FGC > 15 || BGC > 15)
    {
        return false;
    }

    //Get the console output handle
    HANDLE hConsoleOutput;
    hConsoleOutput = CreateFile("CONOUT$", GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
    if (hConsoleOutput == INVALID_HANDLE_VALUE)
    {
        return false;
    }

    //retrieve the console info    
    CONSOLE_SCREEN_BUFFER_INFO sbiConsoleInfo;
    if (!GetConsoleScreenBufferInfo(hConsoleOutput, &sbiConsoleInfo;) )
    {
        return false;
    }

    //change the top line
    DWORD dwWritten = 0;
    COORD coWriteCoord;
    coWriteCoord.X = 0;
    coWriteCoord.Y = ypos;
    if (!FillConsoleOutputAttribute(hConsoleOutput, ((BGC & 0x0F) << 4) + (FGC & 0x0F), sbiConsoleInfo.dwSize.X,  coWriteCoord, &dwWritten;))
    {
        return false;
    }
    return true;
}