I’m using HTBasic21 and need to control some DAQ cards from NI.
I’ve found an old demo version of DAQmx for HTBasic (DAQmx_htb.lib) that works with my cards , but as it is a demo version it is limited with physical devices.
You can also write the functions you need yourself using NIDAQ32.dll directly, but this will probably take you a lot of time…
The command descriptions are here : NI DAQ dll commands