Writing a C++/CLI wrapper for GFLW

Question

I am trying to write a C++/CLI wrapper for GLFW. I created a CLR Class Library project called GLFWWrapper and added the glfw3.lib to Additional Dependencies, and also added the header files folder to Additional Include Directories.

My GLFWWrapper.h looks like this so far:

// GLFWWrapper.h

#pragma once

#include <GLFW\glfw3.h>

using namespace System;

namespace GLFWWrapper {

    public ref class Window
    {
    public:
        Window(int width, int height, char * title);
    private:
        GLFWwindow * m_ptr;
    };
}

And my GLFWWrapper.cpp looks like this:

// This is the main DLL file.

#include "stdafx.h"

#include "GLFWWrapper.h"

namespace GLFWWrapper {

    Window::Window(int width, int height, char * title) {
        if (glfwInit() != GL_TRUE) {

        }
        else {
            m_ptr = glfwCreateWindow(width, height, title, nullptr, nullptr);
        }
    }
}

Now when I try to compile it, I get the following warnings:

GLFWWrapper.obj : warning LNK4248: unresolved typeref token (01000008) for 'GLFWwindow'; image may not run
GLFWWrapper.obj : warning LNK4248: unresolved typeref token (0100000B) for 'GLFWmonitor'; image may not run

What do they mean in my context and can this be problematic?

score 1 · Accepted Answer · answered Apr 23 '16 at 02:14

Add:

struct GLFWwindow {};
struct GLFWmonitor {};

before the:

#include <GLFW/glfw3.h>

That will at least eliminate the warning. I am not set up to verify that it will execute properly but I assume that is easy enough to do for you and anyone else that needs to do what you are doing.

Writing a C++/CLI wrapper for GFLW

1 Answers1