Hi All,

I was wondering if anyone had a sample app that uses COM for Level I/II and History? I've got a little C++ console app running using the TCP/IP interface but I think the COM interface would be much quicker and I wouldn't have to parse all the data. I know the supplied sample C++ applications show this but I was looking for something much simpler, perhaps something that didn't have all the GUI stuff wrapped with it. I'm not really familiar with all the VC++ workings.

Thanks in advance,
Joseph

Joseph, we (DTN) currently do not have any example code for what you are asking.

I will check into this a bit more tomorrow

Hi Joseph,

I was wondering why you think the COM interface is faster than the TCPIP interface.
It would seem to me that a COM object talking to DTN would still have to use the
TCPIP interface since it goes through the internet. I think that due to all of the marshalling of the data through a COM object, it is inherently SLOWER than the TCPIP
socket. I don't know the exact methods that DTN uses to talk to the servers but I would bet that they use the TCPIP one for the reason mentioned above. Please explain if I
am incorrect, this COM stuff is pretty complex.

Good Luck

TLikins,

Thanks for the response, yeah I didn't fully realize that I would still be doing string tokening on the Level I data even with the COM object. That was my only reason for wanting the object...but it looks like that is unavoidable.

Joseph,

I don't know what development platform you use but most modern tools have things like
list objects that automatically parse the data for you. I use the Borland C++ Builder for my
development. One of the objects that I use is a string list component. One of the properties
is the word separator character. By specifying what character you want to use to split a
string, ie space or coma, it becomes very easy to select the string list index for the field
you want. I don't know how Microsoft does this with their IDE but there must be something
similar.

Good luck