CMakeLists.txt

project(xxx)

add_library(xxx SHARED xxx.cpp)

add_executable(yyy yyy.cpp)

target_link_libraries(yyy xxx)

xxx.h

#ifndef XXX_XXX_H

#define XXX_XXX_H

#endif 

#pragma once

#ifdef BUILD_XXX_DLL

#define IO_XXX_DLL __declspec(export)

#else

#define IO_XXX_DLL __declspec(import)

#endif 

extern "C"

{

IO_XXX_DLL void hello(void);

}

xxx.cpp

#define BUILD_XXX_DLL 

#include "xxx.h"

#include <iostream> 

using namespace std; 

IO_XXX_DLL void hello(void)

{

    cout<<"Hello from dll!"<<endl;

    cin.get();

}

yyy.cpp

#include <windows.h>

#include <iostream> 

using namespace std; 

int main()

{

    HINSTANCE h = LoadLibrary("C:\\Users\\Perelman\\.CLion2016.1\\system\\cmake\\generated\\xxx-4d5c076f\\4d5c076f\\Debug\\libxxx.dll");

    typedef void (*p)(void);

    p f = (p)GetProcAddress(h, "hello");

    f();

    FreeLibrary(h);

    return 0;

}