calidragoncalidragon 2005.04.11 22:53 

- what time does the time field in TickInfo struct represent ?
- is it possible to turn off pump so I can get historical data, then turn pump back on ?
- will MT4 servers be backward compatible w/ MT3 client ?

Thanks,
Chris

calidragoncalidragon 2005.04.18 09:48 

I dont understand. If I turn on pump mode, then want to open a new chart. How can I get historical data if call to MtGetRates is not allowed while pumping is on ?

I've tried having two connections open at the same time, one for pump mode and one for MtGetRates, but this is problematic.

Thanks,
Chris

calidragoncalidragon 2005.04.21 08:10 

What I am doing is opening one socket for pump and one socket for getRates and leaving them both open. One problem seems to be I cant open 2 connections back to back - I get 'too many frequent requests' error. Ok, so I wait a little before I open second connection. The problem that is still occuring is I often fail on MtAddSymbol with MtGetErrorDescription returning "ok". It usually fails right away and continues to fail, so I just restart my app, but that is not a long term solution.

Another question I have. Once I call intial GetRates and start recieving tick info. Is it recommended to save high/low info and just use tick info to calculate new candle at end of a period or to call getRates to get the 'official' candle ?

Thanks,
Chris

calidragoncalidragon 2005.04.25 02:06 

"socket without pumping cannot be opened more than 2 minuts"

Thanks, I wasnt aware of this.

I've looked at sample 2, well - all of the samples, and they all use MetaTraderAPI which just uses one socket. Unless I'm missing something. I've written a Managed C++ object that replaces that and uses 2 sockets.

I've reworked my code so that it does , basically :

login socket 1
put socket 1 in pump mode
login socket 2
for all securites I want data for
GetRates( socket 2)
Add Security(socket 1)
close socket 2

This rids me of the "Cant add security" error i was getting alot.
But now, I still get "too many frequent requests" error pretty often, but works about 70% of the time. I noticed in sample 3 that there were alot of ::Sleep(5000) peppered throughout the code, but the comments are in russian - which i cant read - so I'm not sure of why this is being done.

Do I need to wait some period of time before I open 2 socket ?

Thanks,
Chris

AndrewSchwartzAndrewSchwartz 2005.04.27 11:21 

another question - when I place an order using SendOrder and it returns RET_OK, am I guaranteed that the order will eventually be placed with the specified price? If so, why does the order take some time before it appears on the trades list? Thanks.