How to use MATLAB functions in turbo C++?

Question

I'm want to use a Matlab function that I've written in Turbo C++.

I know that I'll have to use .dll, .lib, and .h files that I've extracted from Matlab function.

Question: How can I use the extracted .dll, .lib, and, .h files to call this function in Turbo C++?

Here is my function:

function [ Integ ] = integral( x , a,b )
Integ = int(x,a,b);
end