maximizing the chart window with mql4

[Essam Daoud]

Hi

I need to maximize the chart window when the following event fires but it is not doing any thing? How can I fix it?

Playing around with the code below did not cut it for me. Any suggestions?

Thanks

void OnChartEvent(const int id,
                  const long &lparam,
                  const double &dparam,
                  const string &sparam)
  {
      ChartSetDouble(0,CHART_FIXED_MAX,1000); // <<<<< Not maximizing the chart as expected
      // also I tried this next line for no avail.
      ChartSetInteger(0,CHART_WIDTH_IN_PIXELS,854);

   
  }