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Libraries

CDownLoadHistory class - library for MetaTrader 5

Aleksey Sergan | English Русский 中文 Español Deutsch 日本語 Português
Views:
5979
Rating:
(27)
Published:
2011.03.03 14:01
Updated:
2016.11.22 07:32
\MQL5\Scripts\DownloadHistory\
classprogressbar.mqh (3.75 KB) view
cdownloadhistory.mqh (10.54 KB) view
downloadhistoryvisualmode.mq5 (1.36 KB) view
downloadhistorysilentmode.mq5 (1.17 KB) view
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The CDownLoadHistory class provides the methods of historical data downloading in two modes: "visual" and "silent".

1. Visual mode

The example of use of this mode is downloadhistoryvisualmode.mq5.

The "history download mode" input parameter can be one of two modes: "current symbol" or "all symbols from Market Watch window":

CDownLoadHistory class

For the "All symbols from Market Watch window" mode, it will show two progress bars:

 CDownLoadHistory class

For the case if the "current symbol" mode is selected, the single progress bar will be shown:

CDownLoadHistory class
 

It prints the results in "Experts" tab of "Toolbox" window:

CDownLoadHistory class
 

2. Silent mode

The result of downloading is availiable as a return code. The silent mode can be useful in programs, where visualization is not needed. See example in downloadhistorysilentmode.mq5 script.

It uses the CProgressBar class, described in The Price Histogram (Market Profile) and its implementation in MQL5.

Translated from Russian by MetaQuotes Ltd.
Original code: https://www.mql5.com/ru/code/304

sToken sToken

The script contains a class, that can be used to solve mathematical and logical expressions, defined as string.

downloadhistory.mq5 downloadhistory.mq5

The script downloads historical data (for the current symbol), available at trade server.

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