Linking Errors - unresolved external symbol _main....

[Chipstix]

Every time I compile I get this error.. Can't find a solution to the problem..

error LNK2019: unresolved external symbol _main referenced in function _WinMain@16   

Thanks.

[Gambit]

Compile what? Post the code you are using.

[Chipstix]

Oops, I thought I said. Im compiling the tutorial code :

#include <SFML/Graphics.hpp>

int WinMain()
{
    sf::RenderWindow window(sf::VideoMode(200, 200), "SFML works!");
    sf::CircleShape shape(100.f);
    shape.setFillColor(sf::Color::Green);

    while (window.isOpen())
    {
        sf::Event event;
        while (window.pollEvent(event))
        {
            if (event.type == sf::Event::Closed)
                window.close();
        }

        window.clear();
        window.draw(shape);
        window.display();
    }

    return 0;
}
 

[Laurent]

Use main() as the entry point of your application. If you created a Win32 GUI application that expects WinMain, link to sfml-main as stated in the tutorial.

[Chipstix]

That's the thing, I have linked it to sfml-main..

[Jesper Juhl]

But you have not changed WinMain to the standard main.

[Chipstix]

It still says the same thing with main.

[Laurent]

Show your updated code, and the corresponding error message.

[Chipstix]

It's exactly the same apart from its now main rather that WinMain.

[eXpl0it3r]

If you link against sfml-main you need to set the subsystem to "window", otherwise it should be "console".
In both cases "int main()" is the entry point.

Make sure to do a clean rebuild.

[Gambit]

If you link against sfml-main you need to set the subsystem to "window", otherwise it should be "console".

You do not need to change the subsystem if you link to sfml-main. I have projects linking to main which run in both Console and System and I have no issues.

[Laurent]

You do not need to change the subsystem if you link to sfml-main. I have projects linking to main which run in both Console and System and I have no issues.

You can link to sfml-main in a console project, yes, but it is completely useless since the linker won't use the WinMain entry point that it defines.

[Gambit]

Does sfml-main have any other purpose? The dependency is listed in a property sheet so I cant tell it not to include it for console projects.

[eXpl0it3r]

sfml-main does one thing only, for Windows it looks like this:

#include <SFML/Config.hpp>

#ifdef SFML_SYSTEM_WINDOWS

#include <windows.h>


extern int main(int argc, char* argv[]);

////////////////////////////////////////////////////////////
int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, INT)
{
    return main(__argc, __argv);
}

#endif // SFML_SYSTEM_WINDOWS

[Chipstix]

My subsystem is set to windows too.. is there something I'm missing here?