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Dll an TS 2000i are not reliable with service pack 4.
Sometime my system crash.
I used the Hashnums32 , it work well but it's slow if you have a lot of data
to transfert. (more than 30/sec)
I used this with VB 6
Emmanuel
----- Original Message -----
From: Mark Cerar <marQc@xxxxxxxxxxx>
To: Omega List <omega-list@xxxxxxxxxx>
Sent: Monday, May 07, 2001 1:00 PM
Subject: VB, QTI's DLL's and TS2000i
> Has anyone on the list used Quality Trading Innovation's Hashnums32 or
> QlsNumbs32 DLL's to interface a Visual Basic program with Tradestation
> 2000i. If so, does the VB, DLL, TS 2000i combination work well? Is it
> stable and reliable?
>
> I would also like to know how the 3 programs work together? For example,
I
> know the DLL uses a client-server configuration and TS or any other 32 Bit
> program can call DLL function's in order to pass data back and forth (I
have
> HashNumbs), but how would you pass data in the following manner:
>
> TS -> DLL -> VB -> DLL -> TS
>
> One way I can think of doing this might be to have the VB program polling
> some kind of flag variable. The sequence might go something like this: the
> TS system fires at the end of the bar, it passes it's data to the DLL,
sets
> a "flag" variable to True. The VB program, which is constantly polling the
> flag variable, would fire when it's value is True. Of course this would
> have to work in reverse also with TS similary polling another flag
variable
> in order to control the execution of the rest of it's system code.
However,
> this seems rather convoluted and wasteful of processor cycles.
>
> Another way might be to somehow execute the VB program from within TS.
> However, I am only a beginner VB programmer which brings me to my final
> request: perhaps somebody on this list might have a reference for a good
> book/magazine/article/web site that explains VB DLL's, how they work and
how
> to write them etc.?
>
> I would turn to the creator of these DLL's but he states the following in
> his product literature so I'm turning to any generous souls on this list
> with the requisite knowledge for help:
>
> Please refer to the appropriate language documentation
> for using DLL's. I cannot provide any support for
> doing this (writing programs in C/C++ or Visual Basic that
> use the DLL to communicate with Tradestation). Using DLL's
> in this manner requires a certain level of programming
> experience and the wrong usage may detrimentally affect
> your system.
>
>
>
>
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