topic Re: A problem about LabVIEW calling C program in LabVIEW

A problem about LabVIEW calling C program

CZUJYJ — Wed, 24 Aug 2022 11:36:43 GMT

After compiling the DLL dynamic library file, I call the C program through the "call library function node". However, after selecting the file, the following problem occurs:

Prompt: the selected file is not a legal library.

I don't know what the problem is. I hope I can get your help.

Re: A problem about LabVIEW calling C program

rolfk — Wed, 24 Aug 2022 11:45:59 GMT

Is this on the same system that you used to compile the DLL?

Is this really a C(++) DLL or rather a .Net assembly?

Even Dependency Walker claims that it is not a valid COFF PE file format. So something in your build steps is very much wrong.

If you open the DLL file in a text editor it simply is an INI style file!

Re: A problem about LabVIEW calling C program

zou — Wed, 24 Aug 2022 13:39:48 GMT

Are you using Windows OS?

Is your dll built on Windows?