I built a PCL under windows using cmake. And when I use it in my own project, I need to add the additional include folder. But I couldn't find where is the include folder.
There is one folder named as "include" under the main PCL folder, but there is only one file in it, that is "pcl_config.h".
Does this mean there is any problem with my own built library?
Can anyone help me with this?
Thanks!
Maybe you didn't build all the components. This is what I see with my 1.6 all in installation with prebuilt binaries: (I don't have enough reputation to post images)
http://i.stack.imgur.com/bjxgC.png
Inside each folder you have several .h files.
Related
I'm a bit of a noob on that topic so I'm searching for help. I need to install this library (https://github.com/twcclegg/libphonenumber-csharp) for a unity project where I need to check phone numbers.
But as I always made simple games in unity I really don't know how to do that and I don't really know either what to search to find an answer.
If anyone of you knows how to do it, it will really make my day.
Thank you
Once do a build on a project you want to use in Unity, then find the DLL output from the build. I recommend you do Release Builds, but for now if you are not familiar with Visual Studio just use what you were able to build. If there are multiple directories then you only need one - the best one to use would be any labelled ".NET Standard" which it seems you have a .net standard 2.0 directory.
Go to your Unity project in the Assets folder, and if there isn't already a Plugins folder create one. Then in Assets/Plugins create a folder named whatever you want for the library - in this case PhoneNumber would be fine. So you would have Assets/Plugins/PhoneNumber and you would copy/paste the contents of your NetStandard2 folder there.
In the end you should have Assets/Plugins/PhoneNumber/PhoneNumber.dll
As soon as you have that dll, you can switch back to Unity and see if it worked by checking the Unity Console for any Errors. You might receive errors saying it could not load the DLL. Almost always if it can not load the DLL it is because of missing dependent DLLs - which is why I said to copy the entire folder contents inside the "NetStandard2" folder since it may contain more than just PhoneNumber.dll - it may have it's necessary dependent dlls also.
If not, you can read the error output and hopefully get a clue as to what dependent dlls are missing. You can also expand the Dependencies in Visual Studio.
Typically the DLL failing to be loaded in Unity is because of missing dependent DLLs. Expanding the Dependencies, which is found under the project name in the Solution Explorer window on the right side of Visual Studio, will show you what libraries it requires. Most of what you see under dependencies (if not all) will require a similarly named dll. Under the netstandard2.0 dependency I see System.Collections.Immutable - so you may need a System.Collections.Immutable.dll which should (usually) be in the output folder when you build the project. You would also need that dll in Unity in your PhoneNumber folder along with PhoneNumber.dll
How are you?
I am trying to create a video like this:
https://youtu.be/L0JkjIwz2II
or like this:
https://youtu.be/hPCTwxF0qf4
I am trying to getting this code working:
https://github.com/Tubeliar/HAARCascadeVisualization
I am using Visual Studio 2017 on Windows 10.
I have added correctly the include directory and the library directory.
I created it as a console application.
I added the #include "stdafx.h" at the start of the main file.
This are the errors that Microsoft Visual Studio show to me:
Can you help me solve this?
There is anything that I should know for making this work correctly?
Thank you to everyone,
Andrea
Those errors are as has been noted indeed linker errors. If the compiler does not complain that means you have you include paths set up correctly, so you have won half the battle.
For linker errors you can try these things:
Make sure your *.lib files are built for the same target you're building your own project for.
If you use NuGet then you can look in the /packages folder of your project. Browse down to /packages/[package name]/build/native/lib/[architecture]/. There you will find folders like v120 or v140. For Visual Studio 2017 they need to be v141. If they are missing then you can tell VS to target the older platform (project properties -> general -> platform toolset)
If you've built the libraries yourself then maybe you did that similarly targeting a different platform? Try building the OpenCV library again and make sure the target is set to v141 (or whatever you want to use).
Make sure the linker can find your libraries. If you're using NuGet this step isn't necessary but if you built the library yourself or if you downloaded a prebuilt one then go into project settings and:
Go to VC++ directories -> Library Directories, edit that value and make sure the folder that contains the *.lib files is in there.
Go to Linker -> Input -> Additional Dependencies, edit it and put in all the *.lib files. Just their names, not full paths. In your case you'd just put opencv_world331d.lib there.
Be aware that any of the above settings need to be done for each configuration. Usually there is a x86 and x64 architecture combined with debug or release configuration. If you switch any of these you'd have to check the above steps again. This is a bit of a hassle so you're better off defining a property sheet once which you can then reuse every time you do a OpenCV project. There was a tutorial for this in OpenCV 2.4's documentation, and some people have made premade ones.
I have created a Setup Project in VS2010 for my VC++ project and I have it generating a setup file and it includes Primary Output, Content Files, Documentation files and Resource Sattelite DLLs from my VC++ project. My VC++ project is multilanguage and hence includes language DLL files in subdirectories. My issue is that the Setup Project does not include these language DLLs (nor their directories into which they must be placed).
I would have thought that these DLLs were included in the Project Output but they are not. :-/
I know I could add them manually by referencing the files directly, but that means including a absolute reference which I would rather not do. Also, a fixed reference means Release/Debug versions of the file are not handled (only one of them is use regardless of project setting).
Suggestions?
Edit: I have now tried Setup Project, InstallShield LE and WiX. None of them include the localization dll's into the setup project (only managed a working setup with Setup Project, but could see that the other installers did not include the required dll). I can't even fint any reference to this being a know bug and I have really tried hard to find a solution to this.
Found it over there:
C# Creating a setup for multi-language
It worked. I hope it is what you were searching for.
I am trying to use the DevIl image library in Windows in my project, using MSVS2010. I have downloaded the sdk "DevIL 1.7.8 SDK for 32-bit Windows" from http://openil.sourceforge.net/download.php and put in a folder where all my others libraries are. I have configured my project to include its headers and to link with the .lib provided. I have copied the dll provided to the folder my .exe is. It compiles and links with no problem but when i try to execute it i have an error popup saying something like "procedure entry point _ilGetData#0 could not be located in DevIl.dll" (translation from spanish). I have followed the same steps as in all libraries i am using with no problems, so i don´t know where the problem is.
Thanks for you help.
I believe the problem is that the binaries were built with an older version of Visual Studio... you may have to build the library yourself.
Can someone link me a good guide for using libraries in a c or c++ project?
Right now I'm trying to add OpenCV to a newly created project. I've added all the directories I can think of in "Project and Solutions -> VC++ Directories" and to make sure I've dragged and dropped all the .lib and .dll files into the project.
The project builds but when I run the simple "Hello, World program" it gives me this error message:
"cv.exe unable to locate component.
This application has failed to start because cv200.dll was not found. Re-installing the application may fix this problem."
How can I really add this cv200.dll? I've dragged&dropped it into the project..
Thanks!
You need to make sure that cv200.dll is in the DLL search path at run time. The easiest way to do this is to put it in the same directory as the built executable. Dragging and dropping a DLL or LIB file into your project has no effect.
MSDN has a good description of the full DLL search order when loading libraries at runtime.
By default during installation OpenCV create env. variable path \bin.
All dll assumed to be in that dir. However you are using OpenCV 2.0, and OpenCV 2.0 installation doesn't include lib and dll files for Visual Studio. You seems already built all dll's and lib's. If you installed OpenCV correctly just move all dll's into \bin (for example C:\Program Files\OpenCV\bin)
If for some reason you are missing some dll or libs here is instruction how to build them
http://mirror2image.wordpress.com/2009/10/20/switching-to-opencv-2-0-with-vs2005/