Windows console output test. Some functions fail when the stdout is redirected to a file.

WindowsConsoleTest.cpp

#include <stdio.h>
#include <tchar.h>
#include <Windows.h>
#include <wincon.h>

int _tmain(int argc, _TCHAR* argv[])
{
    TCHAR *lbuf = L"I love beef!\n";
    CHAR *buf = "I love pork!\n";
    HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
    CONSOLE_SCREEN_BUFFER_INFO scrInfo;
    DWORD wroteSize;

    GetConsoleScreenBufferInfo(hStdout, &scrInfo)
        ? printf("GetConsoleScreenBufferInfo: OK\n")
        : printf("GetConsoleScreenBufferInfo: NG\n"); 

    SetConsoleTextAttribute(hStdout, BACKGROUND_RED | FOREGROUND_BLUE)
        ? printf("SetConsoleTextAttribute: OK\n")
        : printf("SetConsoleTextAttribute: NG\n"); 

    WriteConsole(hStdout, lbuf, lstrlen(lbuf), &wroteSize, nullptr)
        ? printf("WriteConsole: OK\n")
        : printf("WriteConsole: NG\n"); 

    SetConsoleTextAttribute(hStdout, scrInfo.wAttributes);

    WriteFile(hStdout, buf, strlen(buf), &wroteSize, nullptr)
        ? printf("WriteFile: OK\n")
        : printf("WriteFile: NG\n"); 

    return 0;
}