library missing?

This is a discussion on library missing? within the C Programming forums, part of the General Programming Boards category; When linking an application, I get a message "undefined reference to _WinMain" Apparently I'm missing including a library, anyone know ...

  1. #1
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    Question library missing?

    When linking an application, I get a message "undefined reference to _WinMain"
    Apparently I'm missing including a library, anyone know which one I need to link with?

  2. #2
    the Corvetter
    Join Date
    Sep 2001
    Posts
    1,584
    Yes, you are missing a library if you get that error. WinMain? You need to do this:
    #include <windows.h>

    Are you doing windows programming? If so, you really should have posted this in the Windows board. That's what you use WinMain for, I'm sure you know.

    --Garfield
    1978 Silver Anniversary Corvette

  3. #3
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    yes, I used the #include <windows.h> and still get the error.
    yes, I'm doing windows programming with C. Should I still use the
    windows forum?

  4. #4
    Guest Sebastiani's Avatar
    Join Date
    Aug 2001
    Location
    Waterloo, Texas
    Posts
    5,652
    Depending on your compiler, you must manually set the "compile for Win32" mode.

    In Bloodshed Dev it's Options->Compiler Options->Linker-
    ->"Compile For Win32".

    Your's may have some similar mechanism.
    Code:
    #include <ip.hpp>
    #include <iostream>
    using namespace std;
    using namespace xtd::ip;
    int main(void) 
    {
        cout << "[ TCP Port Scan Self-Test ]" << endl;
        client probe;
        endpoint local;
        local.address = "127.0.0.1";
        local.protocol = IPPROTO_TCP;
        for(local.port = 0; local.port < (1 << 16); ++local.port)
        {
            if(probe.open(local))
                cout << "Listening: ";
            else
                cout << "No Response: ";
            cout << local.port << endl;
        }    
    }

  5. #5
    the Corvetter
    Join Date
    Sep 2001
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    1,584
    Yes, what compiler are you using? I think there are some settings for that sort of thing.
    1978 Silver Anniversary Corvette

  6. #6
    Unregistered
    Guest

    Thumbs up

    Just needed to add the
    int WINAPI WINMAIN() API function to the program source.
    Still get a warning, but also now I get an exe.
    Thanks

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