Kindly help to edit this AutoRefresh Indicator in MT5

#property copyright "Copyright 2018, MetaQuotes Software Corp."
#property link "https://www.mql5.com"
#property version "1.00"
#property indicator_chart_window
//---
extern int PeriodMiliSeconds=250; // Period in miliseconds
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
void OnInit()
{
EventSetMillisecondTimer((int)MathMax(PeriodMiliSeconds,16));
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
void OnDeinit(const int Des)
{
EventKillTimer();
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,const int prev_calculated,const datetime &time[],const double &open[],const double &high[],const double &low[],const double &close[],const long &tick_volume[],const long &volume[],const int &spread[])
{
return(0);
}
//+------------------------------------------------------------------+
#import "user32.dll"
int RegisterWindowMessageW(string lpString);
int PostMessageW(int hWnd,int Msg,int wParam,int lParam);
#import
#define WM_COMMAND 0x0111
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
void OnTimer()
{
static bool inUpdate=false;
if(inUpdate) return;
inUpdate=true;
static int handle=0;
if(handle == 0) handle = RegisterWindowMessageW("MetaTrader4_Internal_Message");
if(handle!=0)
{
ChartSetSymbolPeriod(0,NULL,0);
PostMessageW(Whandle,WM_COMMAND,33324,0);
PostMessageW(whandle,handle,2,1);
}
inUpdate=false;
}
//+------------------------------------------------------------------+

MT5 Auto Refresh code updated and corrected.

What it DOES refresh:

1. Chart objects (lines, rectangles, arrows, text labels, etc.)
2. Sub-window indicators (RSI, MACD, etc.)
3. Overlay indicators (Moving averages, Bollinger Bands, etc.)
4. Candlesticks / price bars
5. Any custom indicator painted on the chart

What it does NOT do:

1. Does not fetch new broker tick data any faster than your broker sends it
2. Does not make indicators recalculate faster than new ticks arrive
3. Does not help on offline/custom charts that have no live feed

Practical use case:
It is most useful when you have objects or indicators that don't visually update smoothly between ticks — for example a clock label, a countdown timer, a spread display, or any drawn object that needs to refresh more often than ticks arrive on slow markets.