Regarding the EWO as a plugin or lib for WinCC OA

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Pradeep Kumar
Posts:39
Joined: Fri Dec 09, 2016 2:54 pm

Regarding the EWO as a plugin or lib for WinCC OA

Post by Pradeep Kumar »

Hi,

I came across the document saying

An EWO is dynamically loaded into the WinCC OA user Interface(it is compiled as a plugin into shared library dll)

I didnt get this statement, do the user need the lib or plugin for renaming as .ewo?.



Thanks,

mkoller
Posts:741
Joined: Fri Sep 17, 2010 9:03 am

Re: Regarding the EWO as a plugin or lib for WinCC OA

Post by mkoller »

On Windows, for whatever dubious reason, you get two files: .lib and .dll
What we load is the .dll, but you need to rename it to .ewo
On Linux, there is just one file: .so, so you need to rename this one.

Pradeep Kumar
Posts:39
Joined: Fri Dec 09, 2016 2:54 pm

Re: Regarding the EWO as a plugin or lib for WinCC OA

Post by Pradeep Kumar »

@Martin thanks ,

So i will need to create the Qt App as a .dll shared library so that we compile, we get .dll and then we can rename as For Ex : MyApp.ewo. Out the .dll created
Is my understanding clear.

Thanks,

mkoller
Posts:741
Joined: Fri Sep 17, 2010 9:03 am

Re: Regarding the EWO as a plugin or lib for WinCC OA

Post by mkoller »

yes, that's correct.

4 posts • Page 1 of 1