Question

我试着看看与这些错误消息有关的问题是什么。我试图检查一切，但仍然，我找不到错误的来源。

根据你的说法，obj错误后跟错误LNK2019：函数中引用了未解析的外部符号imp__is_CaptureVideo，它的出处是什么？

我正在使用Visual Express C ++ 2010。

谢谢。

1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_CaptureVideo referenced in function "private: void __thiscall CIdsSimpleLiveDlg::OnButtonStart(void)" (?OnButtonStart@CIdsSimpleLiveDlg@@AAEXXZ)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_StopLiveVideo referenced in function "private: void __thiscall CIdsSimpleLiveDlg::OnButtonStop(void)" (?OnButtonStop@CIdsSimpleLiveDlg@@AAEXXZ)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_SetImageMem referenced in function "private: void __thiscall CIdsSimpleLiveDlg::OnBnClickedButtonLoadParameter(void)" (?OnBnClickedButtonLoadParameter@CIdsSimpleLiveDlg@@AAEXXZ)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_AllocImageMem referenced in function "private: void __thiscall CIdsSimpleLiveDlg::OnBnClickedButtonLoadParameter(void)" (?OnBnClickedButtonLoadParameter@CIdsSimpleLiveDlg@@AAEXXZ)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_SetColorMode referenced in function "private: void __thiscall CIdsSimpleLiveDlg::OnBnClickedButtonLoadParameter(void)" (?OnBnClickedButtonLoadParameter@CIdsSimpleLiveDlg@@AAEXXZ)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_AOI referenced in function "private: void __thiscall CIdsSimpleLiveDlg::OnBnClickedButtonLoadParameter(void)" (?OnBnClickedButtonLoadParameter@CIdsSimpleLiveDlg@@AAEXXZ)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_FreeImageMem referenced in function "private: void __thiscall CIdsSimpleLiveDlg::OnBnClickedButtonLoadParameter(void)" (?OnBnClickedButtonLoadParameter@CIdsSimpleLiveDlg@@AAEXXZ)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_ParameterSet referenced in function "private: void __thiscall CIdsSimpleLiveDlg::OnBnClickedButtonLoadParameter(void)" (?OnBnClickedButtonLoadParameter@CIdsSimpleLiveDlg@@AAEXXZ)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_EnableMessage referenced in function "private: bool __thiscall CIdsSimpleLiveDlg::OpenCamera(void)" (?OpenCamera@CIdsSimpleLiveDlg@@AAE_NXZ)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_GetSensorInfo referenced in function "private: bool __thiscall CIdsSimpleLiveDlg::OpenCamera(void)" (?OpenCamera@CIdsSimpleLiveDlg@@AAE_NXZ)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_RenderBitmap referenced in function "private: long __thiscall CIdsSimpleLiveDlg::OnUEyeMessage(unsigned int,long)" (?OnUEyeMessage@CIdsSimpleLiveDlg@@AAEJIJ@Z)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_ExitCamera referenced in function "private: void __thiscall CIdsSimpleLiveDlg::ExitCamera(void)" (?ExitCamera@CIdsSimpleLiveDlg@@AAEXXZ)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_GetColorDepth referenced in function "private: int __thiscall CIdsSimpleLiveDlg::InitDisplayMode(void)" (?InitDisplayMode@CIdsSimpleLiveDlg@@AAEHXZ)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_SetDisplayMode referenced in function "private: int __thiscall CIdsSimpleLiveDlg::InitDisplayMode(void)" (?InitDisplayMode@CIdsSimpleLiveDlg@@AAEHXZ)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_GetDuration referenced in function "private: int __thiscall CIdsSimpleLiveDlg::InitCamera(unsigned long *,struct HWND__ *)" (?InitCamera@CIdsSimpleLiveDlg@@AAEHPAKPAUHWND__@@@Z)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_InitCamera referenced in function "private: int __thiscall CIdsSimpleLiveDlg::InitCamera(unsigned long *,struct HWND__ *)" (?InitCamera@CIdsSimpleLiveDlg@@AAEHPAKPAUHWND__@@@Z)
1>IdsSimpleLiveDlg.obj : error LNK2019: unresolved external symbol __imp__is_ImageFormat referenced in function "private: void __thiscall CIdsSimpleLiveDlg::GetMaxImageSize(int *,int *)" (?GetMaxImageSize@CIdsSimpleLiveDlg@@AAEXPAH0@Z)
1>nafxcwd.lib(appcore.obj) : error LNK2001: unresolved external symbol ___argv
1>nafxcwd.lib(appcore.obj) : error LNK2001: unresolved external symbol ___argc
1>C:\Program Files\IDS\uEye\Develop\Source\SimpleLive\Debug\po.exe : fatal error LNK1120: 19 unresolved externals

Answer 1

我通过点击属性添加了通讯库然后，将目录添加到库目录

您似乎已将“附加库目录”添加到VS项目中 - 但未链接实际库文件（Windows扩展名：.lib）。我想你做的是

Project Properties -> Configuration Properties-> Linker -> General -> Additional Library Directories

并添加了你的第三方'.lib'所在的directoy。但实际上这并没有链接到'.lib'文件本身（它只是添加了VS搜索链接的.lib文件的目录）。

尝试以下方法： Right click on your project -> Project Properties -> Configuration Properties-> Linker -> Input -> Additional Dependencies

有一个列表如：

'kernel32.lib;user32.lib;...;%(AdditionalDependencies)'

有些内部应该出现'.lib文件'的名称。如果没有，你可以在那里添加它。即如果你的第三方库的lib被命名为'myLib.lib'，你将在那里插入

'kernel32.lib;user32.lib;...;myLib.lib;%(AdditionalDependencies)'

在VC ++ 2010 Express中构建项目时出错

1 个答案: