OPC UA architecture

[holly7787]

maybe because i'm using the evaluation version.

i have to install the Full Developement System

calling_windows_sdk_functions

[vix]

I think you're right.

[holly7787]

Tryed with a full version but still have the same problem... 

[vix]

I didn't understand if Windows Kit has been installed during CVI installation by CVI installer itself or if it hasn't.

As I wrote, you can't manually download and install the Windows Kit from MS website and use it in CVI.

Does this help you?

[holly7787]

i'm reinstalling CVI, which of this i have to chose?

[vix]

The first one is enough.

[holly7787]

nothing to do, still have the same problem.

are there any .fp or .lib to include?

[vix]

Now we're sure the Windows Kit is installed properly.

I don't know how you are familiar with the usage of Windows Kit, but (as a general rule) every time you include a given .h file from the SDK you must add the relevant .lib to the project.

The .h contains the declarations only (i.e. data types, function prototypes, ...) but the lib contains the definitions (i.e. implementation).

To use OPC UA you need WS2_32.lib

[holly7787]

build succeded! 

if you have time can you explain how to know which .lib i have to include when using a certain library?

i have used this 

C:\Program Files (x86)\Windows Kits\8.1\Lib\winv6.3\um\x86\WS2_32.lib

[vix]

Great!

I don't know if there is a quicker way but I do this:

• When the linker gives me an error that function XXXXXXX() is not defined I search for the function name on https://docs.microsoft.com
• in your case you had WSACleanup() not defined and you can find this page
• At the bottom of the page you find Requirement section where you can see the Library item (which is ws2_32.lib)
• Browse on your hard drive inside

  C:\Program Files (x86)\Windows Kits

  until you find the library. If you have more than one file, it depends on the architecure you're building for.

Please, open a different topic if you have other issues and/or questions