Change entire console background color (Win32 C++)

问题

How can I change the entire console's background color? I've tried SetConsoleTextAttribute and it only changes the background color of new text.

I effectively want the entire console to turn red when a serious error arises.

Thanks to everyone who attempts to help.

回答1:

Try something like:

system("color c2");

回答2:

I think the FillConsoleOutputAttribute function will do what you need. Set it to the starting coordinate of the console, and set nLength to the number of characters in the console (width * length).

BOOL WINAPI FillConsoleOutputAttribute(
  __in   HANDLE hConsoleOutput,
  __in   WORD wAttribute,
  __in   DWORD nLength,
  __in   COORD dwWriteCoord,
  __out  LPDWORD lpNumberOfAttrsWritten
);

回答3:

I know this is an old question, but how about this code:

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


VOID WINAPI SetConsoleColors(WORD attribs);


int main() {

    SetConsoleColors(BACKGROUND_BLUE | FOREGROUND_RED | FOREGROUND_INTENSITY);

    std::cout << "Hello, world!" << std::endl;
    std::cin.get();

    return 0;
}


VOID WINAPI SetConsoleColors(WORD attribs) {
    HANDLE hOutput = GetStdHandle(STD_OUTPUT_HANDLE);

    CONSOLE_SCREEN_BUFFER_INFOEX cbi;
    cbi.cbSize = sizeof(CONSOLE_SCREEN_BUFFER_INFOEX);
    GetConsoleScreenBufferInfoEx(hOutput, &cbi);
    cbi.wAttributes = attribs;
    SetConsoleScreenBufferInfoEx(hOutput, &cbi);
}

As far as I know this code should work on Windows Vista and later versions. By the way, this code is based on this article (mainly the sources on the article): http://cecilsunkure.blogspot.fi/2011/12/windows-console-game-set-custom-color.html

回答4:

HANDLE out = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleTextAttribute(out, 0x9 | 0x70); 
// text color from 0x1-0x9
// text background color from 0x10-0x90   
system("color d1");
/*
Sets the default console foreground and background colors     
COLOR [attr]      
attr        Specifies color attribute of console output       
Color attributes are specified by TWO hex digits -- the first
corresponds to the background; the second the foreground.  Each digit
can be any of the following values:       
            0 = Black       8 = Gray
            1 = Blue        9 = Light Blue
            2 = Green       A = Light Green
            3 = Aqua        B = Light Aqua
            4 = Red         C = Light Red
            5 = Purple      D = Light Purple
            6 = Yellow      E = Light Yellow
            7 = White       F = Bright White
If no argument is given, this command restores the color to what it was
when CMD.EXE started.  This value either comes from the current console
window, the /T command line switch or from the DefaultColor registry
value.       
The COLOR command sets ERRORLEVEL to 1 if an attempt is made to execute
the COLOR command with a foreground and background color that are the
same.
/*

回答5:

This works for me. It changes the background color without messing up the foreground color of text already displayed, by changing each console character cell, one at a time. You will need to get the handle to your console output buffer, which I believe is done with GetStdHandle().

DWORD written = 0;
COORD writeCoord = {0};
WORD attribute;
for (int y = 0; y < consoleBufferLength; y++)     // rows
{
    for (int x = 0; x < consoleBufferWidth; x++)  // columns
    {
        writeCoord.X = x; writeCoord.Y = y;
        ReadConsoleOutputAttribute(consoleOutputHandle, &attribute, 1, writeCoord, &written);
        attribute &= 0xFF0F;  // zero the background color
        attribute |= 12 << 4; // change the background color to red
        FillConsoleOutputAttribute(consoleOutputHandle, attribute, 1, writeCoord, &written);
    }
}

回答6:

It can be done and the whole background can be set to desired color with SetConsoleScreenBufferInfoEx. The code below should not mess with the previous console output, especially if it used colors:

 #include "Windows.h"

    void FlashConsoleBackgroundColor(int cntFlashes, int flashInterval_ms, COLORREF color)
    {

        CONSOLE_SCREEN_BUFFER_INFOEX sbInfoEx;
        sbInfoEx.cbSize = sizeof(CONSOLE_SCREEN_BUFFER_INFOEX);

        HANDLE consoleOut = GetStdHandle(STD_OUTPUT_HANDLE);
        GetConsoleScreenBufferInfoEx(consoleOut, &sbInfoEx);

        COLORREF storedBG = sbInfoEx.ColorTable[0];

        for (int i = 0; i < cntFlashes; ++i)
        {
            //-- set BG color
            Sleep(flashInterval_ms);
            sbInfoEx.ColorTable[0] = color;
            SetConsoleScreenBufferInfoEx(consoleOut, &sbInfoEx);

            //-- restore previous color
            Sleep(flashInterval_ms);
            sbInfoEx.ColorTable[0] = storedBG;
            SetConsoleScreenBufferInfoEx(consoleOut, &sbInfoEx);
        }
    }

    int main()
    {

        printf("Flashing console BG: RED");
        FlashConsoleBackgroundColor(20, 50, RGB(255, 0, 0));

        printf("\rFlashing console BG: ORANGE\n");
        FlashConsoleBackgroundColor(10, 100, RGB(255, 105, 0));

        return 0;
    }

回答7:

I have a dirty way here, but gives what you exactly want.

  #include <windows.h>
  hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
  SetConsoleTextAttribute(hConsole,30);
  system("CLS");

console

来源：https://stackoverflow.com/questions/6460932/change-entire-console-background-color-win32-c

标签

c++

windows

console

background-color