Calling a dll from Mathematica

Question

I would like to call the following function from Mathematica

ps3000aOpenUnit PICO_STATUS ps3000aOpenUnit ( short * handle, char * serial )

I define the DLLFunciton in Mathematica:

ps3000OpenUnit = DefineDLLFunction["ps3000aOpenUnit", "PS3000a.dll", "short", {"short[]", "char[]"}]

I get following error when executing

ps3000OpenUnit[handle, serial] NET::methodargs: Improper arguments supplied for method named ps3000aOpenUnit.

What is wrong with my code?

Thanx for helping me in advance.

I don't recall "short" or "char" being a valid type for the definition - shouldn't they be "integer" and "string" (or "char*"? — ciao
– ciao, Commented Jun 5, 2014 at 7:52
It seems like your function signature declares your parameters as pointers, but in your DefineDLLFunction you specify arrays. What are the values of handle and serial? — mfvonh
– mfvonh, Commented Jun 5, 2014 at 14:03

Corpec · Accepted Answer · 2015-01-28 13:48:33Z

2

"short" or "char" are in the C programming language data typs.

Try this:

ps3000aOpenUnit = DefineDLLFunction["ps3000aOpenUnit", "ps3000a.dll", "short", {"short*"}]; handle=0; status = ps3000aOpenUnit[handle];

answered Jan 28, 2015 at 13:48

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