how can fill under the line till end of vertical chart ?

[faustf]

hi i try to use this code  for fill but not  work anyone  have sume suggest ?? thanks so much

#property indicator_chart_window
#property indicator_buffers 1
#property indicator_color1 LightPink
#property indicator_width1 2

double ExtMapBuffer1[];

int init()
{
    IndicatorBuffers(1);
    SetIndexBuffer(0, ExtMapBuffer1);
    SetIndexStyle(0, DRAW_LINE);
     SetIndexStyle(0, DRAW_SECTION);

    return 0;
}

int start()
{
    int counted_bars = IndicatorCounted();
    int limit = Bars - counted_bars;

    for (int i = limit; i >= 0; i--)
    {
        if (i >= 0 && i < Bars)
            ExtMapBuffer1[i] = High[i];
    
    }

    return 0;
}