how to transfer 2d array between LV Call Lib Func Node and a DLL?

[Richard Zhu]

the document only lists the 1d array data transfer, is it possible to trans
2d array btw LV and DLL ?

any sample or rules ?

thanks

[rolfk]

Depends what you understand under a 2D array. In C a two dimensional array will sometimes be a pointer to an array of pointers to the array of data. This is not how LabVIEW can pass 2D arrays. LabVIEW 2D arrays are really just a pointer to a single array with row * column elements.

Rolf Kalbermatter

[Feroz]

Hi Richard,

I have attached an example that uses a dll built in LabVIEW and calls it from LabVIEW. Please take a look at how the Call Library Function is configured.

I hope this helps.

Sincerely,
Feroz
National Instruments