将HDF5库链接到Visual C ++ DLL项目:未解析的外部符号__imp __ * [英] Linking HDF5 library into Visual C++ DLL project: unresolved external symbol __imp__*

问题描述

我正在使用MS Visual C ++ 2010 Express构建插件，我想包括 HDF5库.我已经尝试使用CMake从源代码构建HDF5，并安装了预编译的库( HDF5-1.8.7_CMake_x86_shared.zip (对于VC 2008).对于任一构建目录/方法，我都修改了项目属性:

I'm building a plug-in with MS Visual C++ 2010 Express, and I would like to include capabilities from the HDF5 library. I have tried both building HDF5 from source with CMake, and installing the precompiled library (HDF5-1.8.7_CMake_x86_shared.zip for VC 2008). For either build directory/method, I've modified my project property:

• C/C ++>常规>其他包含目录:为HDF5添加include
• 链接器>常规>其他库目录:为HDF5添加lib

• C/C++ > General > Additional Include Directories: add the include for HDF5
• Linker > General > Additional Library Directories: add the lib for HDF5

这是我的DLL模块的摘要:

Here is a snippet of my DLL module:

#include "cpp/H5Cpp.h"

static IResult OnBeginDocument (IDocument pDoc)
{
  H5Fcreate("C:\\out.h5", H5F_ACC_EXCL, H5P_DEFAULT, H5P_DEFAULT);

  return True;
}

请注意，当我将鼠标悬停在该代码段上时，VC ++可以正确地解析.h文件，例如，直观地显示H5Fcreate的弹出式文档.我的问题是我无法构建尝试使用H5Fcreate的模块.这是我的构建尝试中的控制台输出:

Note that VC++ correctly parses the .h files to, e.g., visually show pop-up documentation for H5Fcreate when I hover my mouse over that snippet. My problem is that I cannot build the module that tries to use H5Fcreate. Here is the console output from my build attempts:

1>MyProject.obj : error LNK2019: unresolved external symbol __imp__H5Fcreate referenced in function "int __cdecl OnBeginDocument(struct IModuleStruct *)" (?OnBeginDocument@@YAHPAUIModuleStruct@@@Z)
1>MyProject.obj : error LNK2019: unresolved external symbol __imp__H5check_version referenced in function "int __cdecl OnBeginDocument(struct IModuleStruct *)" (?OnBeginDocument@@YAHPAUIModuleStruct@@@Z)
1>C:\MyProject\Release\MyProject.dll : fatal error LNK1120: 2 unresolved externals

尝试链接HDF5的两种方法(如上所述，预编译与自编译)都会产生这些完全相同的错误，因此我不确定我要去哪里.

Both methods of attempting to link in HDF5 (precompiled vs self-compiled, as described above) produce these exact same errors, so I'm not sure where I'm going wrong.

非常感谢@HasanKhan和@StevieG，这些都是对像我这样的n00b有用的提示.为了清楚起见，我确实确实需要在链接器>输入>其他依赖项中添加lib文件路径:

Many thanks to @HasanKhan and @StevieG, these were helpful tips for n00bs like me. Just to follow up clearly, I did indeed need to add lib filepaths in Linker > Input > Additional Dependencies:

hdf5dll.lib
hdf5_cppdll.lib

如果我需要其他HDF5功能，则可能需要添加其他lib文件.另外，事实证明，我需要将HDF5 DLL(从bin)复制到我的系统目录(例如，C:\WINDOWS\System32\)中，以使插件在运行时正确运行.现在一切都很好，谢谢！

I may need to add other lib files if I require other HDF5 features. Also, it turned out that I needed to copy the HDF5 DLLs (from bin) into my system directory (e.g., C:\WINDOWS\System32\) for the plugin to operate correctly at runtime. All good now, thanks!

推荐答案

• 链接器>常规>其他库目录:您应添加

  • Linker > General > Additional Library Directories: you should add the path to the directory containing the .lib file here

    链接器>常规>输入:您应在此处添加.lib文件的名称

    Linker > General > Input: you should add the name of the .lib file here

    这篇关于将HDF5库链接到Visual C ++ DLL项目:未解析的外部符号__imp __ *的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！