Вот что Microsoft говорит об очистке консоли:
#include <windows.h>
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, // Handle to console screen buffer
(TCHAR) ' ', // Character to write to the buffer
dwConSize, // Number of cells to write
coordScreen, // Coordinates of first cell
&cCharsWritten ))// Receive number of characters written
{
return;
}
// Get the current text attribute.
if( !GetConsoleScreenBufferInfo( hConsole, &csbi ))
{
return;
}
// Set the buffer's attributes accordingly.
if( !FillConsoleOutputAttribute( hConsole, // Handle to console screen buffer
csbi.wAttributes, // Character attributes to use
dwConSize, // Number of cells to set attribute
coordScreen, // Coordinates of first cell
&cCharsWritten )) // Receive number of characters written
{
return;
}
// Put the cursor at its home coordinates.
SetConsoleCursorPosition( hConsole, coordScreen );
}
int main()
{
HANDLE hStdout;
hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
cls(hStdout);
return 0;
}