ClearScreen2

#include <windows.h>

void ClearScreen() {
    HANDLE hStdOut;
    CONSOLE_SCREEN_BUFFER_INFO csbi;
    DWORD count;
    DWORD cellCount;
    COORD homeCoords = { 0, 0 };
    hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
    if (hStdOut == INVALID_HANDLE_VALUE)
    {
        return;
    }
    /* Get the number of cells in the current buffer */
    if (!GetConsoleScreenBufferInfo(hStdOut, &csbi))
    {
        return;
    }
    cellCount = csbi.dwSize.X *csbi.dwSize.Y;
    /* Fill the entire buffer with spaces */
    if (!FillConsoleOutputCharacter(hStdOut,
                                    (TCHAR) ' ',
                                    cellCount,
                                    homeCoords,
                                    &count))
    {
        return;
    }
    /* Fill the entire buffer with the current colors and attributes */
    if (!FillConsoleOutputAttribute(hStdOut,
                                    csbi.wAttributes,
                                    cellCount,
                                    homeCoords,
                                    &count))
    {
        return;
    }
    /* Move the cursor home */
    SetConsoleCursorPosition(hStdOut, homeCoords);
}