将WSAAsyncSelect与Mingw链接 - undefined参考

我正在将我在Borland编写的voip应用程序移植到Mingw，所以我知道代码有效。我使用命令行gcc -lws2_32 -mwindows voipapp.c -o voipapp和不断收到错误消息将WSAAsyncSelect与Mingw链接 - undefined参考

未定义的引用“WSAAsyncSelect @ 16””。

这似乎是正确的定位libws2_32.a因为没有错误消息上来告诉我，否则。任何想法，什么都可以错了，我有最新版本的MinGW安装感谢的一个

我的代码如下：？！

#include <windows.h> 
#include <winsock2.h> 
#define __MT__ 
#include <mmreg.h> 
#include <time.h> 
#include <math.h> 
#include <stdio.h> 
#include <process.h> 

#define WM_SOCKETREAD (WM_USER + 1) 

SOCKET ListenSocket; 

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); 

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, 
      LPSTR szCmdLine, int iCmdShow) { 

    static char szAppName[] = "voip"; 
    HWND  hwnd; 
    MSG   msg; 
    WNDCLASSEX wndclass; 

    wndclass.cbSize   = sizeof(wndclass); 
    wndclass.style   = CS_HREDRAW | CS_VREDRAW; 
    wndclass.lpfnWndProc = WndProc; 
    wndclass.cbClsExtra  = 0; 
    wndclass.cbWndExtra  = 0; 
    wndclass.hInstance  = hInstance; 
    wndclass.hIcon   = LoadIcon(NULL, IDI_APPLICATION); 
    wndclass.hIconSm  = LoadIcon(NULL, IDI_APPLICATION); 
    wndclass.hCursor  = LoadCursor(NULL, IDC_ARROW); 
    wndclass.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH); 
    wndclass.lpszClassName = szAppName; 
    wndclass.lpszMenuName = NULL; 

    RegisterClassEx(&wndclass); 

    hwnd = CreateWindow(szAppName, "VOIP prototype", 
      WS_OVERLAPPEDWINDOW, 
      CW_USEDEFAULT, CW_USEDEFAULT, 
      CW_USEDEFAULT, CW_USEDEFAULT, 
      NULL, NULL, hInstance, NULL); 

    ShowWindow(hwnd, iCmdShow); 
    UpdateWindow(hwnd); 


    WSAAsyncSelect(ListenSocket, hwnd, WM_SOCKETREAD, FD_READ|FD_CLOSE); 


    while (GetMessage(&msg, NULL, 0, 0)) { 
    TranslateMessage(&msg); 
    DispatchMessage(&msg); 
     } 

    return msg.wParam; 
} 

LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam) { 

    return DefWindowProc(hwnd, iMsg, wParam, lParam); 
}

来源

2011-12-03 user1079212

您必须指定正确的链接顺序。

尝试：

gcc voipapp.c -o voipapp -mwindows -lws2_32

来源

2012-03-14 11:04:19 pph

将WSAAsyncSelect与Mingw链接 - undefined参考

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