Несколько вопросов - C++ - Ответ 1863765

#include <windows.h>
#include <stdio.h>
#include <time.h>
 
time_t t;
 
void CleanScreen(COORD POOS);
void ShowTime();
 
int main()
{
    SetConsoleTitle("timer");
    HWND hWnd = FindWindow(NULL,"timer");
    if(hWnd)
        MoveWindow(hWnd,0,0,220,80,true);
    while(true)
    {
        ShowTime();
        Sleep(100);
    }
    return 0;
}
 
void CleanScreen(COORD POS)
{
    HANDLE hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
    CONSOLE_SCREEN_BUFFER_INFO SCRN_INFO;
    GetConsoleScreenBufferInfo(hOutput, &SCRN_INFO);
    
    FillConsoleOutputCharacter(hOutput, ' ',
    SCRN_INFO.dwSize.X*SCRN_INFO.dwSize.Y, POS, NULL);
    FillConsoleOutputAttribute(hOutput, 
        FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE /*????*/, 
        SCRN_INFO.dwSize.X*SCRN_INFO.dwSize.Y,POS,NULL);
 
    SetConsoleTextAttribute(hOutput,FOREGROUND_GREEN|FOREGROUND_INTENSITY);
    SetConsoleCursorPosition(hOutput,POS);
    //printf("CONSOLE HANDLE 0x%p",hOutput);
}
 
void ShowTime()
{
    COORD POS;
    POS.X = 0;POS.Y = 0;
    CleanScreen(POS);
    CONSOLE_SCREEN_BUFFER_INFO SCRN_INFO;
 
    time(&t);
    tm * plocal = localtime(&t);
    printf("%s",asctime(plocal));
    GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &SCRN_INFO);
    POS.X = 0;
    POS.Y = SCRN_INFO.dwCursorPosition.Y;
    CleanScreen(POS);
}