SCR_RecycleVS

void start()
{
  string Name = "hwnd" + WindowHandle(Symbol(), Period()) + "Variance";

  if (GlobalVariableCheck(Name))
  {
    GlobalVariableSet(Name, 1 - GlobalVariableGet(Name));

    AddTick();
  }

  return;
}

#import "user32.dll"
  int PostMessageA( int hWnd, int Msg, int wParam, int lParam );
  int RegisterWindowMessageA( string lpString );
#import

void AddTick()
{
  if (!IsDllsAllowed())
    return;

  int hwnd = WindowHandle(Symbol(), Period());
  int MT4InternalMsg = RegisterWindowMessageA("MetaTrader4_Internal_Message");

  PostMessageA(hwnd, MT4InternalMsg, 2, 1);

  return;
}