I've created an application using Qt Creator and now I would like to use the functionalities within an C# visual studio solution. With this i want to create a library from my QT application and add this as a reference within my visual studio solution. I've realized a few things when searching the web for a solution.

I would like to know what is the best way of doing this, I've tried creating a library file with the use of TEMPLATE = lib in my .pro file but as I relaize I then have to use the .h file and this is now possible as I in my visual studio use C# as language but my QT project is developed with c++.

I need to create a COM interop dll as I understand it but all I can find online is either eight years old or done through visual studio itself.

So what I want to do is to create a simple library file which I can use without the .h file, which I can add to my visual studio solution, without any GUI necessary. I'm only going to use the functions within the dll as help functions to my visual studio solution.

If someone please can help me with a small tutorial or step by step guide this would really really help me?

Thanks!