How can I call a DLL created by Matlab in Visual Studio 2017?

Hallo, I created a DLL by using the app Library Application: FunctionDLL.dll. Library application created a standalone application that has this output files: folders with some header files, .c files, .lib files and an executable that has to be run if you don't have matlab installed in your pc. Now I want to test the DLL by using a project written in Visual Studio 2017 in C code (I use C code because I need to transfer it in another program that reads only C code). I tried to write it following the steps described by the documentation and the examples provided to us (matrixdriver.c and triangle.c, https://de.mathworks.com/help/releases/R2010b/toolbox/compiler/f2-972343.html , https://de.mathworks.com/help/releases/R2010b/toolbox/compiler/f2-972343.html) but however I have some errors. Visual Studio is not able to open the header file of my DLL ( FunctionDLL.h) also if I add the path in which it could be find (Properties-->General Properties-->VC++ Directory--> Additional Inclusive Directory) and also the required library, FunctionDLL.lib (same path but in Libraries Directory). I can't find the reason why it behaves like that! I have to say that I am a beginner so maybe I set some setting wrong. And It is also difficult for me to deal with all "mclInitialize" "return mclRunMain((mclMainFcnType)run_main, 0, NULL);" So, Can anyone tell me step by step how to reach my goal please? Thank you very much.