RegisterWaitForSingleObject未声明(首先使用此函数)

RegisterWaitForSingleObject Undeclared (First Use This Function)

本文关键字:函数 未声明 RegisterWaitForSingleObject      更新时间:2023-10-16

好吧,过去一周我一直在谷歌上寻找解决方案,并搜索了多个编码网站,包括以下链接:

http://boost.2283326.n4.nabble.com/boost-asio-UnregisterWaitEx-RegisterWaitForSingleObject-has-not-been-declared-td4633963.html

这就是我如何知道使用

-D_WIN32_WINNT=0x0601 -DWINVER=0x0601

在编译行中。

我使用的是带有Dev-C++的Windows7(64位),每当我编译Boost时,我都会收到以下错误:Asio示例:

Compiler: Default compiler
Building Makefile: "D:TutorialsAsioMakefile.win"
Executing  make...
make.exe -f "D:TutorialsAsioMakefile.win" all
g++.exe -c main.cpp -o main.o -I"D:/Programs/Dev-Cpp/lib/gcc/mingw32/3.4.2/include"  -I"D:/Programs/Dev-Cpp/include/c++/3.4.2/backward"  -I"D:/Programs/Dev-Cpp/include/c++/3.4.2/mingw32"  -I"D:/Programs/Dev-Cpp/include/c++/3.4.2"  -I"D:/Programs/Dev-Cpp/include"  -D_WIN32_WINNT=0x0601 -DWINVER=0x0601 -lboost_system-mgw44-mt-1_49  
In file included from D:/Programs/Dev-Cpp/include/boost/asio/detail/win_object_handle_service.hpp:180,
                 from D:/Programs/Dev-Cpp/include/boost/asio/windows/object_handle_service.hpp:24,
                 from D:/Programs/Dev-Cpp/include/boost/asio/windows/basic_object_handle.hpp:27,
                 from D:/Programs/Dev-Cpp/include/boost/asio.hpp:99,
                 from main.cpp:3:
D:/Programs/Dev-Cpp/include/boost/asio/detail/impl/win_object_handle_service.ipp: In member function `void boost::asio::detail::win_object_handle_service::register_wait_callback(boost::asio::detail::win_object_handle_service::implementation_type&, boost::asio::detail::scoped_lock<boost::asio::detail::win_mutex>&)':
D:/Programs/Dev-Cpp/include/boost/asio/detail/impl/win_object_handle_service.ipp:376: error: `RegisterWaitForSingleObject' undeclared (first use this function)
D:/Programs/Dev-Cpp/include/boost/asio/detail/impl/win_object_handle_service.ipp:376: error: (Each undeclared identifier is reported only once for each function it appears in.)
D:/Programs/Dev-Cpp/include/boost/asio/detail/impl/win_object_handle_service.ipp: In static member function `static void boost::asio::detail::win_object_handle_service::wait_callback(void*, BOOLEAN)':
D:/Programs/Dev-Cpp/include/boost/asio/detail/impl/win_object_handle_service.ipp:418: error: `RegisterWaitForSingleObject' undeclared (first use this function)
make.exe: *** [main.o] Error 1
Execution terminated

我的代码如下:

#define _WIN32_WINNT 0x0601
#define __USE_W32_SOCKETS
#include <boost/asio.hpp>
#include <iostream>

int main()
{
    // Cre'ation du service principal et du re'solveur.
    boost::asio::io_service ios;
    boost::asio::ip::tcp::resolver resolver(ios);   // (1)              
    // Parame`trage du resolver sur Developpez.com
    boost::asio::ip::tcp::resolver::query query("www.developpez.com", "80"); // (2)
    // On re'cupe`re une "liste" d'ite'rateur
    boost::asio::ip::tcp::resolver::iterator iter = resolver.resolve(query); // (3)
    boost::asio::ip::tcp::resolver::iterator end; //Marqueur de fin
    while (iter != end) // On ite`re le long des endpoints
    {
        boost::asio::ip::tcp::endpoint endpoint = *iter++;
        std::cout << endpoint << std::endl; // on affiche (4)
    }
    return 0;
 }  

考虑到代码本身没有错误,这并不重要。这只是我一直在使用的五个教程之一,这些教程给了我与Boost:Asio相同的、完全错误的错误。

有人建议在链接器中使用"-lwsock32",在编译器中也使用"-lbostrongystem-mgw44-mt-1_49",但这并没有起到任何作用。按照建议添加"-D-WIN32_WINNT=0x0601-DWRINVER=0x0601"消除了一些错误,但这是我所得到的。

我非常认真地想在我的程序中实现Boost:Asio,所以如果我能得到一个有效的例子,我可以从各种资源中更好地理解它,并按预期使用它。因此,请不要给我任何关于"交给专业人士"或"学会编程"的信息,因为我在其他论坛上一次又一次地看到有人就这个错误寻求帮助。尽管我知道如何编程,但在使用我不熟悉的库时,我仍然会遇到这样的错误。

提前感谢!

添加

#include <windows.h>

到文件顶部,就在#define s之后。看起来Boost使用的是一个win32函数,而它本身不包括windows.h。