Make LV dll

[Billy.Deng]

hi all, when I use vi to make dll,but I can not use TCP/IP vis to make dll,why?

[smercurio_fc]

I'm sorry, but your question makes no sense. Can you please rephrase and add some more information. What do you mean about using TCP/IP functions to "make a DLL"? You use the Application Builder to make a DLL. Are you saying you're using TCP/IP in your program and when you make a DLL it no longer works? If so, please provide a description of what your program does, or upload your code if possible.

[Billy.Deng]

Hi,

    I am sorry, yesterday my IE had some error;now you see the program,my question is if I use this program to make dll, can I use the dll in labview?

the second picture,is the process make dll,but I can not see the Vi out?why?

[smercurio_fc]

If you build a VI into a DLL then yes, you can use it in LabVIEW. Have you taken a look at the LabVIEW manual? Also, have you looked over this KB article: http://zone.ni.com/devzone/cda/tut/p/id/3303

Is there a reason you're trying to make that small amount of code into a DLL? Are you actually trying to use the DLL in another programming language?

Your second picture is too small. I cannot see anything in it. I also do not understand what you mean by  "can no see the Vi out". What is "Vi out"?

[Billy.Deng]

hi smercurio_fc,

[Billy.Deng]

hi smercurio_fc,

          I think I am "vi out" it mean output of vi,

I don't see Vi output.I test small pro to make dll, it seems that in others pro language wil install LV runtime engin. I just want to know why it not have output, and can you make a example for me?thank you!

[Dennis_Knutson]

Your output is the string indicator called 'data out' in the VI and 'dataOut' in the function prototype. That's the only thing you have defined as an output so I don't understand what else you might be looking for.

[smercurio_fc]

I have to admit I'm also confused as to what output you're trying to get. Are you getting confused between a DLL and a subVI? Might it be that you're really trying to just make a subVI? Are you having trouble understanding how to call DLLs in LabVIEW (regardless of whether they were created in LabVIEW or in C)?

[Billy.Deng]

Hi,

     I think use English not really express my means,but I will still to use.my origin means is use labview to build dll, like VISA or TCP/IP can communicate easy, so my minds to use VISA or TCP/IP build dll and then use in C or VB.Maybe I can not use dll build fexible.

     Thinking......