Handling different frameworks Unity and VisualStudio

DiegoV

One of my problems is that I am developing with Unity3D. Unity do not support more that 3.5 .net framework. I am using an external partie set of dlls that are released in 4.5 but I need it for programming but I cannot import them in Unity. As I understand that Universal Apps can work with 4.5 framework, so I do not know how to handle this . Should I program in Unity? Is possible? Should I add this code after making the VS application, how can I test it afterwards. How can I add this to existing scrips in Unity.
Thanks!

Dwight_Goins_EE_MVP

Unity uses a subset of .Net framework 3.5 (Mono .Net). However you can target UWP apps and use the .Net compiler to compile for .Net 4.5, just be warned it's not cross platform at this point. You have the use the NET_FX_CORE and WINDOWS_UWP defines, in your cs scripting files. After you've compiled your applications in Unity and generated the cs project files, you're free to continue added what ever logic you need as long as it follows the UWP contracts.

Another note, if you need to use some raw level api's that even unity doesn't support you may want to look at the IL2CPP scripting engine, this produces DirectX and C++ projects which you can further take and expand upon with the Hololens framework.

james_ashley

@DiegoV,

If you need to call these external dlls from inside unity, then you will need to pinvoke them from unity most likely. Even though your unity project is built as a uwp app, I don't think there's a way to take advantage of that to create a bridge between your dlls and unity.

Its honestly been a while so I'm not sure what happens when you pinvoke a .net 4.5 dll from mono.

Here's a decent guide to pinvoking from unity: http://ericeastwood.com/blog/17/unity-and-dlls-c-managed-and-c-unmanagedhttp://ericeastwood.com/blog/17/unity-and-dlls-c-managed-and-c-unmanaged

Dwight_Goins_EE_MVP

Unity uses a subset of .Net framework 3.5 (Mono .Net). However you can target UWP apps and use the .Net compiler to compile for .Net 4.5, just be warned it's not cross platform at this point. You have the use the NET_FX_CORE and WINDOWS_UWP defines, in your cs scripting files. After you've compiled your applications in Unity and generated the cs project files, you're free to continue added what ever logic you need as long as it follows the UWP contracts.

Another note, if you need to use some raw level api's that even unity doesn't support you may want to look at the IL2CPP scripting engine, this produces DirectX and C++ projects which you can further take and expand upon with the Hololens framework.

DiegoV

I think that I will try to use Dwight_Goins_EE_MVP answers! Thanks anyway