How are DAQ (traditional and MX) data types stored?

[ldhertert]

I'm wondering if there is documentation anywhere about how the DAQ channel controls are stored. I'm looking for information like what's given on this page:
http://zone.ni.com/devzone/conceptd.nsf/webmain/370DFC6FD19B318C86256A33006BFB78?opendocument

[Matt_F]

Hello Idhertert,

The channel controls are saved as follows:

Bytes 0-3: String size (nnsigned 32bit)
Bytes 4-undefined: Channel string (one byte per char)

Hope this helps.

Regards,

Matt F

[Deborah]

Some of the DAQmx controls are "strings" are some are "refnums", specifically "refnum tags". The DAQmx Task and DAQmx Global Channel controls are refnums; all other DAQ (traditional and mx) controls are strings. So in the document you referenced, refer to the string and refnum sections appropriately.

This is advanced stuff. If you need some further info, post back here.

Good luck.