Did I forget something? (Double Console Buffer for Windows)

I tried to make / test a double buffer for the console on Windows using windows.h

.

After some research on msdn, I came up with the following:

`

//Free current console
if ( FreeConsole() == 0 ) return GetLastError();
//Get clean console
if ( AllocConsole() == 0 ) return GetLastError();

HANDLE buffer1 = GetStdHandle( STD_OUTPUT_HANDLE );
HANDLE buffer2 = CreateConsoleScreenBuffer( GENERIC_WRITE,
                                            0,
                                            NULL,
                                            CONSOLE_TEXTMODE_BUFFER,
                                            NULL );
COORD begin;
begin.X = 0;
begin.Y = 0;

SetConsoleCursorPosition(buffer1, begin);

DWORD writen;

WriteConsole( buffer1,
              L"Milk\n",
              5,
              &writen,
              NULL );

WriteConsole( buffer2,
              L"Melk\n",
              5,
              &writen,
              NULL );

system("PAUSE");

SetConsoleActiveScreenBuffer( buffer2 );

WriteConsole( buffer2,
              L"Malk\n",
              5,
              &writen,
              NULL );

WriteConsole( buffer1,
              L"Mulk\n",
              5,
              &writen,
              NULL );

system("PAUSE");

SetConsoleActiveScreenBuffer( buffer1 );

system("PAUSE");
CloseHandle( buffer2 );
return 0; //End of main

      

        
        
        
      

    

Fortunately, this works as intended.

At first, the screen output looks like this:

Milk

      

        
        
        
      

    

Then this:

Melk
Malk

      

        
        
        
      

    

And the conclusion:

Milk
Mulk

      

        
        
        
      

    

And I have a few questions about this:

1) Do you really need to use FreeConsole()

and AllocConsole()

?

2) Should I use CloseHandle()

buffer1 for too? Or should I not be using it for buffer2?

3) Anything that you consider important to indicate.

PS: This is my first question and I hope I am not breaking any of the guidelines.

PS²: I only used it system("PAUSE")

because it was a test and you shouldn't worry about me using it in real software.