Аналог clrscr() и system("cls")

#include "iostream"
#include "windows.h"
 
void cls( HANDLE hConsole );
 
int _tmain(int argc, _TCHAR* argv[])
{
    HANDLE hStdout;
 
    hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
 
    cls(hStdout);
    
    return 0;
}
 
 
void cls( HANDLE hConsole )
{
   COORD coordScreen = { 0, 0 };    // home for the cursor 
   DWORD cCharsWritten;
   CONSOLE_SCREEN_BUFFER_INFO csbi; 
   DWORD dwConSize;
 
    // Get the number of character cells in the current buffer. 
 
   if( !GetConsoleScreenBufferInfo( hConsole, &csbi ))
      return;
   dwConSize = csbi.dwSize.X * csbi.dwSize.Y;
 
   // Fill the entire screen with blanks.
 
   if( !FillConsoleOutputCharacter( hConsole, (TCHAR) ' ',
      dwConSize, coordScreen, &cCharsWritten ))
      return;
 
   // Get the current text attribute.
 
   if( !GetConsoleScreenBufferInfo( hConsole, &csbi ))
      return;
 
   // Set the buffer's attributes accordingly.
 
   if( !FillConsoleOutputAttribute( hConsole, csbi.wAttributes,
      dwConSize, coordScreen, &cCharsWritten ))
      return;
 
   // Put the cursor at its home coordinates.
 
   SetConsoleCursorPosition( hConsole, coordScreen );
}

for (int i=0; i < 30; i++)
    std::cout<< std::endl;

for (int i=0; i < 300; i++)
    std::cout<< std::endl;