How to get rid of DD requirement to get new NI-API to work

[TestStandUser]

I am trying to use the new NI-API that comes on the CD.  It works great but I seem to have to have a DD installed to get it to work despite the fact that I am using indices hard-coded in my code.  I can't even open blocks for example.  What command does one need to use to open blocks by ID opposed to tag/string name.  For example I have a transducer block called "TRANSDUCER_2000".  I want to open this using Block ID=1 (Transducer) instead of the name "TRANSDUCER_2000".

My understanding is the resource block is always 0 the transduver block is always 1 (at least it is for our current product).

Any advice?

[Vince Shen]

Does this new NI-API is .Net? If you are it is .Net, please use GetBlockByOrdinalNumber(int index).

There are two ways to open block

GetBlockByTag

GetBlockByOrdinalNumber

[SMOG187]

With the .net API I have found that you are unable to access a device by index without a DD for the device installed.  Any attempts to open a block by index result in the exception "symbol file not found."

This differs from the C API which seems to have no trouble with this and is able to access the OD within the device without any need for the DD symbol file.

[LewisL]

Both C and .NET API need the presence of a DD file for the device.

C will encounter error as well as C# if the DD file is missing. I did try it myself.