Is there a reaon that you are using the MH-DDK over our standard NI-DAQmx drivers? The Mathworks data acquisition toolbox includes support for NI-DAQmx 9.2 and up. Folks generally choose the MH-DDK when you are on a non-Windows operating system or need to build a very lite OEM dirver for an embedded system.
You can also use LabVIEW to interface to Matlab code or m-file like code.