In the previous section, we learned about cross-platform implementation, and how to Interop with existing native and Mono libraries. To demonstrate interoperability, we created small sample applications. Let's start with building our first native library in C++. Follow these steps:
- Open Visual Studio and select
Windows DesktopunderVisual C++and select the project typeDynamic-Link Library (DLL). In this example, we name the projectExampleDLLand provide the location where we want to create the project:
- Right-click on the header files folder and create a new header file. In this example, we named it
Calculate.h. TheCalculateheader file contains mathematical operations such as the summation of two integer numbers, multiplication, and division:
#ifndef Calculate
#define Calculate
extern "C"
{
__declspec(dllexport)int Sum(int a, int b)
{
return a + b;
}
__declspec(dllexport) int Multiply(int number1, int number2)
{
int result = number1...