#include<iostream>
#include<Windows.h>
#define NAME_CONSOLE "myConsole"

using namespace std;
HWND GetConsole_hWnd()
{
  SetConsoleTitle(NAME_CONSOLE);
  HWND hwnd;
  hwnd=FindWindow(NULL, NAME_CONSOLE);
  return hwnd;
}

main()
{
  HWND hwndClosole;
  hwndClosole=GetConsole_hWnd();
  if(hwndClosole==0)cout<<"error"<<endl;
  //Скрываем консоль
  ShowWindow(hwndClosole,SW_HIDE);
  Sleep(2000);
  //Показываем снова через 2сек
  ShowWindow(hwndClosole,SW_RESTORE);
}