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Thread: Unresolved Externals

  1. #1

    Unresolved Externals

    I'm trying to get started in opengl, I tried compiling a simple program, but I get
    LIBCD.lib(wincrt0.obj) : error LNK2001: unresolved external symbol _WinMain@16
    Debug/gl.exe : fatal error LNK1120: 1 unresolved externals
    Error executing link.exe.

    Dunno whats going on. Help?

  2. #2
    Senior Member Frequent Contributor
    Join Date
    Feb 2000

    Re: Unresolved Externals

    Odd, it's usually the other way around. Are you using GLUT? If so, did you create your project (assuming you're using MSVC) as a Win32 console application rather than a normal Win32 application?

  3. #3
    Member Newbie
    Join Date
    Feb 2001
    Kiel, Germany

    Re: Unresolved Externals

    WinMain is the entry point for an Win32 application. If you want to use standard c main as the entry point, do the following (under MSVC):

    Go to the project settings, Linker-Tab, Output and enter "mainCRTStartup" as the entry point (type it in exactly with upper- and lowercase).

    After this the standard main-function will be used as your applications starting point.

    Hope this helps.

    P.S.: I forgot to mention, taht you should start with a win application. That prevents Windows from generating a console window every time you run your application.

    [This message has been edited by CoBour (edited 03-23-2001).]

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