I assume that for meta trader, chart will be updated when the real time tick data is arrive. Maybe Meta trader keep write the rate information gathered from the tick in the binary text file to feedback to the chart.
However, if the Meta Trader terminal is shut down for many days and the user opened the Meta Trader after several days, then there will be some missing historical price data between new tick and last old tick price ?
How does this gap is handled by Meta Trader terminal ?
Not always, but I occasionally find out some missing data in the chart and they do not fill the missing gap automatically making the indicator look quite horrible.
So I am very curious about the chart updating Mechanism in Meta Trader.
I think Meta Trader might be able to download archived historical data automatically from time to tome but I assume this is probably time consuming and can slow down the Meta Trader and internet connection quite a lot.
Can anyone share their knowledge on the chart updating for mechanism for meta trader 4 ?