How to create dll in Matlab to be used in Labview
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Jong-Hwan Kim
le 12 Nov 2012
Réponse apportée : Ricardo Gutierrez
le 4 Août 2021
Hi all,
I have problem with converting m-file in Matlab to dll file to be used in Labview. I used MCC to create dll from which Labview cannot find inputs and outputs. And is there any way to convert m-file to be used in Labview except using Matlab node due to its slow calculation speed? Thank you in advance.
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Kaustubha Govind
le 12 Nov 2012
Modifié(e) : Kaustubha Govind
le 12 Nov 2012
I'm not sure exactly what kind of interface LabVIEW requires, but this is how you need to interface with a DLL generated using MATLAB Compiler. Note that you will also need to install the MATLAB Compiler Runtime (MCR) on the machine that the DLL is being deployed upon.
I wonder of what you actually need is a standalone DLL (independent of the MCR) - in that case using MATLAB Coder might be the better option.
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Kaustubha Govind
le 15 Nov 2012
Jong: How does LabVIEW "search" for interface exactly? Does it use the DLL header? Perhaps you might be able to ask NI's Technical Support team?
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David Roohy
le 16 Jan 2019
I've put together an example on how to do this from start to finish:
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Michael Kaiser
le 16 Nov 2012
I'm up against the same issue. I've created both C shared libraries and C++ shared libraries, but cannot use in LabVIEW. How is the MATLAB runtime invoked, initialized?
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shubham kumar gupta
le 4 Fév 2021
Modifié(e) : shubham kumar gupta
le 4 Fév 2021
GET A DLL FROM MATLAB:
mcc -v -B csharedlib:sumarray sumarray.m
create a scriptWrapper.c,scriptWrapper.h,scriptWrapper.def file[attached]
Now run below
mbuild -v sumarrayWrapper.c sumarray.lib LINKFLAGS="$LINKFLAGS /DLL /DEF:sumarrayWrapper.def" LDEXT=".dll" CMDLINE250="mt -outputresource:$EXE';'2 -manifest $MANIFEST"
now load this new scriptwrapper.dll in labview via import option, and add your old script.dll to this lvlib in labview
Always run loadFunction.vi before using your mainfunction.vi
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Ricardo Gutierrez
le 4 Août 2021
Dear Shubham Kumar Gupta:
I tested the code for preparing matlab DLL for labview, I have some questions, maybe you can help me. How can I create the Wrapper.c file when you have multiple inputs and multiple outputs?
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