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Date/Time: Tue, 04 Nov 2025 15:36:45 +0000
Post From: Please update DTC protocol documentation and header files
|   [2022-03-31 15:45:40]     |  
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                These will not be documented because they are Sierra Chart  specific and internally used: Even the HEARTBEAT message, which supposed to be 16 bytes as per the docs and the C++ header file at https://dtcprotocol.org/DTC_Files/DTCProtocol.h is much, much longer now as the server sends me 62 byte heartbeats. 
The latest header files have now been released on the DTCProtocol.org website. t_DateTimeWithMillisecondsInt OrderReceivedDateTime;  // this gives me invalid dates, but works with t_DateTime  This is a UNIX time value in milliseconds as an integer.  Sierra Chart could be sending this though in microseconds.Where: And again, based on the JSON messages at least one Username field is undocumented. 
If there is any missing documentation other than what you have specifically mentioned let us know.  | 
        
