如何&在Visual C ++ OpenCV项目中添加调试符号 [英] How & where to add debugging symbols for Visual C++ OpenCV project

问题描述

我在Visual Studio 2012中设置了一个OpenCV C ++项目。为了使其工作，我使用各种项目属性页面来

I've set up an OpenCV C++ project in Visual Studio 2012. To get it working I have use various project property pages to

1. 其他包含目录：$（SolutionDir）.. \Libs\OpenCV\2.4.6\include


2. 附加库目录：$（SolutionDir）.. \Libs\\ \\OpenCV\2.4.6\ $（Platform）\ $（配置）


3. 其他依赖关系：包括 opencv_highgui246d.dll



4. 生成后事件，命令行：通过DLL和lib文件复制，并提供一些示例内容：

1. Additional Include Directories: $(SolutionDir)..\Libs\OpenCV\2.4.6\include
2. Additional Library Directories: $(SolutionDir)..\Libs\OpenCV\2.4.6\$(Platform)\$(Configuration)
3. Additional Dependencies: various files including opencv_highgui246d.dll

4. Post-Build Event, Command Line: copies over the DLLs and lib files and some sample content thus:

xcopy / y $（SolutionDir）.. \Libs\OpenCV\2.4.6\ $（Platform）\ $（Configuration）*。dll $（ProjectDir）$（Platform）\ $ ）\
xcopy / y $（SolutionDir）.. \Libs\OpenCV\2.4.6\ $（Platform）\ $（Configuration）*。lib $（ProjectDir）$（Platform） \ $（配置）\
xcopy / y $（ProjectDir）opencv-logo.jpg $（ProjectDir）$（Platform） \\ $（配置）\
xcopy / y $（ProjectDir）sample.wmv $（ProjectDir）$（Platform）\ $（配置）\

xcopy /y $(SolutionDir)..\Libs\OpenCV\2.4.6\$(Platform)\$(Configuration)*.dll $(ProjectDir)$(Platform)\$(Configuration)\ xcopy /y $(SolutionDir)..\Libs\OpenCV\2.4.6\$(Platform)\$(Configuration)*.lib $(ProjectDir)$(Platform)\$(Configuration)\ xcopy /y $(ProjectDir)opencv-logo.jpg $(ProjectDir)$(Platform)\$(Configuration)\ xcopy /y $(ProjectDir)sample.wmv $(ProjectDir)$(Platform)\$(Configuration)\

我正在尝试调试的代码行或多或少与为 VideoCapture OpenCV类： http://docs.opencv.org/ modules / highgui / doc / reading_and_writing_images_and_video.html

The lines of code I'm trying to debug are more-or-less the same as those in the sample code given for the VideoCapture OpenCV class here: http://docs.opencv.org/modules/highgui/doc/reading_and_writing_images_and_video.html

VideoCapture cap(0); // open the default camera
if(!cap.isOpened())  // check if we succeeded
    return -1;

但我打开一个文件

VideoCapture cap ("sample.wmv");
if (FileExists("sample.wmv"))
{
    OutputDebugString("File exists\n");
}
else
{
    OutputDebugString("File does not exist\n");
}
if(!cap.isOpened())
{
    cout <<"Failed to open camera" << endl;
    OutputDebugString("Failed to open camera\n");   
    return -1;
}

发生错误，所以我想检查什么属性在 cap 通过在 if（！cap.isOpened（））行上设置一个断点。但是如果我尝试在Visual Studio 2012的本地窗口中检查 cap ，我得到错误：

Something's going wrong so I want to check what the properties are on cap by setting a breakpoint on the line if(!cap.isOpened()). But if I try to examine cap in the locals window in Visual Studio 2012 I get the error:

信息不可用，没有加载opencv_highgui246d.dll的符号

"Information not available, no symbols loaded for opencv_highgui246d.dll"

我不熟悉在Visual Studio中设置C ++项目（我多年来一直使用C＃ ;我需要做什么来启用此调试？我必须自己构建OpenCV（如果是这样，我应该在哪里使用什么输出），或者有更多的文件可以复制并包含在我的构建中？

I'm unfamiliar with setting up C++ projects in Visual Studio (I've been using mostly C# for years now); what do I need to do to enable this debugging? Do I have to build OpenCV myself (and if so what output should I use where) or are there more files I can copy over and include in my build?

推荐答案

• 问题：您正在使用2.4.6附带的 prebuild libs，您将能够调试>你自己的代码，但是你不能潜入opencv库（如highgui246d.dll）。

  • problem: you're using the prebuild libs that come with 2.4.6, you'll be able to debug your own code but you can't dive into the opencv libs ( like highgui246d.dll ).

    原因：需要pdb文件没有提供（想想，这将炸毁下载到千兆字节范围）

    reason: the pdb files needed for that are not supplied ( think of it , that would blow up the download to the gigabyte range )

    补救：如果你真的需要挖掘opencv库在调试时，您必须重新编译（cmake和所有jive），因为这将实际生成所需的pdb文件

    remedy: if you really need to dig into the opencv libs while debugging, you'll have to recompile them ( cmake and all that jive) as this will actually generate the needed pdb files

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