错误LNK2019未解析的外部符号

时间:2012-09-06 10:24:05

标签: c++ symbols unresolved-external lnk2019

我是C ++的新手,所以我下载了一个示例C ++程序。示例程序在编译时似乎遇到以下错误: -

Error   22  error LNK2019: unresolved external symbol _acsEnumServerNames@12    referenced in function "protected: virtual int __thiscall COpenTsrv::OnInitDialog(void)" (?OnInitDialog@COpenTsrv@@MAEHXZ)  Opentsrv.obj    

我将其追溯到推荐的函数,但我不知道它有什么问题吗?

BOOL COpenTsrv::OnInitDialog() 
{
CDialog::OnInitDialog();

CenterWindow();


acsEnumServerNames(ST_CSTA, AddToList, (unsigned long) (CComboBox*)&m_TserverListControl);

UpdateData(FALSE);

以下是构建日志。显然还有其他错误,但我想从第一个错误开始。

1>Generating Code...
1>Compiling resources...
1>Compiling manifest to resources...
1>Linking...
1>Opentsrv.obj : error LNK2019: unresolved external symbol _acsEnumServerNames@12  referenced in function "protected: virtual int __thiscall COpenTsrv::OnInitDialog(void)" (? OnInitDialog@COpenTsrv@@MAEHXZ)
1>Opentsrv.obj : error LNK2019: unresolved external symbol _acsQueryAuthInfo@8 referenced in function "protected: void __thiscall COpenTsrv::OnSelchangeTserverlist(void)" (?OnSelchangeTserverlist@COpenTsrv@@IAEXXZ)
1>Opentsrv.obj : error LNK2019: unresolved external symbol _acsAbortStream@8 referenced in function "protected: virtual void __thiscall COpenTsrv::OnOK(void)" (?OnOK@COpenTsrv@@MAEXXZ)
1>Tsapi.obj : error LNK2001: unresolved external symbol _acsAbortStream@8
1>Opentsrv.obj : error LNK2019: unresolved external symbol _acsEventNotify@16 referenced in function "protected: virtual void __thiscall COpenTsrv::OnOK(void)" (?OnOK@COpenTsrv@@MAEXXZ)
1>Opentsrv.obj : error LNK2019: unresolved external symbol _acsOpenStream@60 referenced in function "protected: virtual void __thiscall COpenTsrv::OnOK(void)" (?OnOK@COpenTsrv@@MAEXXZ)
1>Opentsrv.obj : error LNK2019: unresolved external symbol _cstaMonitorDevice@20 referenced in function "protected: long __thiscall COpenTsrv::OnTsapiAcsConfirmation(unsigned int,long)" (?OnTsapiAcsConfirmation@COpenTsrv@@IAEJIJ@Z)
1>Sampldlg.obj : error LNK2019: unresolved external symbol _cstaMakeCall@20 referenced in function "protected: void __thiscall CSampleDlg::OnCall(void)" (?OnCall@CSampleDlg@@IAEXXZ)
1>Sampldlg.obj : error LNK2019: unresolved external symbol _cstaClearConnection@16 referenced in function "protected: void __thiscall CSampleDlg::OnHangup(void)" (?OnHangup@CSampleDlg@@IAEXXZ)
1>Sampldlg.obj : error LNK2019: unresolved external symbol _cstaAnswerCall@16 referenced in function "protected: void __thiscall CSampleDlg::OnAnswer(void)" (?OnAnswer@CSampleDlg@@IAEXXZ)
1>Tsapi.obj : error LNK2019: unresolved external symbol _acsGetEventPoll@20 referenced in function "protected: long __thiscall CTsapiWnd::OnTsapiMsg(unsigned int,long)" (?OnTsapiMsg@CTsapiWnd@@IAEJIJ@Z)
1>C:\Users\steventang\Documents\Visual Studio 2005\Projects\TSAPINEW\Debug\TSAPINEW.exe    : fatal error LNK1120: 10 unresolved externals
1>Build log was saved at "file://c:\Users\steventang\Documents\Visual Studio 2005\Projects\TSAPINEW\TSAPINEW\Debug\BuildLog.htm"
1>TSAPINEW - 12 error(s), 21 warning(s)
========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ==========

任何有助于指出正确方向的帮助都将非常感激。

由于

1 个答案:

答案 0 :(得分:7)

好像你的编辑成功了。只有连接不起作用。

可能链接器抱怨,因为您定义了方法“acsEnumServerNames”的标头,但是您没有提供该方法的实现。

也许您使用了头文件,但是您没有提供标题所属的库?

找出“acsEnumServerNames”属于哪个pakage,并检查你是否在某些.c / .cpp文件中实现了该方法,或者是否应该由某些你依赖的库提供实现。