Getting chart symbol and chart period

[Kashif Javed]

Is there any way to get the chart symbol and chart period by using chart ID without using ChartSymbol() and ChartPeriod()?

[William Roeder]

What's wrong with using those functions?
MQL5 Reference → Chart Operations → Chart Operations / ChartPeriod - Reference on algorithmic/automated trading language for MetaTrader 5

[Kashif Javed]

Chart is hanging when I cal ChartSymbol() in mt5. It keep working fine but then suddenly start hanging and take 3000+ ms and return null string while chart id is still valid.

[Alain Verleyen]

Kashif Javed:
Chart is hanging when I cal ChartSymbol() in mt5. It keep working fine but then suddenly start hanging and take 3000+ ms and return null string while chart id is still valid.

Show your code and how to reproduce it.