如何制作屏幕缓冲区c++

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

const int screenWidth = 80;
const int screenHeight = 25;

CHAR_INFO consoleBuffer[screenWidth * screenHeight];

HANDLE consoleHandle = GetStdHandle(STD_OUTPUT_HANDLE);
COORD bufferSize = { screenWidth, screenHeight };
SetConsoleScreenBufferSize(consoleHandle, bufferSize);

SMALL_RECT windowSize = { 0, 0, screenWidth - 1, screenHeight - 1 };
SetConsoleWindowInfo(consoleHandle, TRUE, &windowSize);

for (int i = 0; i < screenWidth * screenHeight; i++) {
    consoleBuffer[i].Char.AsciiChar = ' ';
    consoleBuffer[i].Attributes = 0;
}

WriteConsoleOutput(consoleHandle, consoleBuffer, { screenWidth, screenHeight }, { 0, 0 }, &windowSize);