Using Labview dll in MATLAB

Hi,

I would like to open a LabVIEW generated dll file in MATLAB. I have a sub VI in LabVIEW to open a file, giving a 2 dimensional double array. Using LabVIEW application builder I created a dll file. I can call this dll file from MATLAB (using calllib). The calllib function only works if the result is a single number. However, this method doesn`t work for a 2 dimensional array. When I try it with a 2 dimensional array I get the error message: "No method with matching signature."

I am interested if anyone has tried this method before?

[Philip Borghesani]

You are going to need to give us a bit more information before we can help. At least some of the information below is needed.

• What is the contents of the header file you are using for the function you wish to call
• What does libfunctions libname -full show for the function you wish to call
• What matlab code did you try to call the function?
• Were there any warnings when loading the library?
• Some information on expected input and output arguments to the function when arguments are pointers.

Advanced debugging for loadlibrary warnings and when libfunctions does not show the expected types:

• Generate a prototype file for the header and post the relevant lines from it for the function you wish to call.