Hello I am trying to build a dll from Libjingle API, I want to be able to use Audio and Video in an XMPP Client on Windows.
I am able to build the libjingle source code using:
hammer.bat --jobs=6 --verbose --mode=all all_programs
I wanted to do this first to make sure it was working. I am also able to generate the Visual Studio Projects. But I am unsure what to do from there, I know how to set my project files to build as a dll but it seems there is no source code loaded in to each of the projects, (they are just empty projects).
I built the Visual Studio projects by following the instructions in main.scons file
s = vs_env.ComponentVSSolution(
'libjingle', # Please uncomment this line if you build VS proj files.
['all_libraries', 'all_programs', 'all_test_programs'],
projects = [p],
)
then executing this command.
hammer --mode=all --vsproj
As I understand it I need to add the source files to each of the projects. But I am unsure how to do this or what should go where.
I appreciate any help you have to offer
*cheers
Edit I found this link with a Visual Studio Project premade http://code.google.com/p/libjingle/issues/detail?id=242
For anyone looking to do this :-)
Related
I am trying to build and run Google Test but encountered some issues.
Any help greatly appreciated.
I used CMake 2.8 (with UI) to create .sln and .vcproj files in the D:/MyBuild
directory (as mentioned in the README file of google test).
However, when I try to run the .sln file in the MyBuild directory,
here is what I get (image):
Also, here is a screenshot of the CMake which I used to
create .sln files and .vcproj files in the D:/MyBuild directory.
ps. One thing I noticed is that README was giving instructions how
to use non graphical version of CMake (e.g., 2.6) to install
google test, however I used one with user interface - maybe
I did something wrong there?
You appear to have successfully built gtest's libs in Debug mode. However, by default the .sln doesn't contain any executables, so you can't actually run anything.
If you select the checkboxes in the CMake GUI for gtest_build_samples and/or gtest_build_tests and hit "Generate", then the Visual Studio solution should contain some executables.
From memory, these don't build cleanly, but I don't have MSVC 2010 to hand, so I can't be sure.
I'm a fairly experienced C# dev, but have very little C++ knowledge. I have set my self a project to get a custom Firefox build running, and be able to control it from C# code.
I have got so far as getting and building the Firefox source, and creating a Visual Studio solution for the exe. This means I can now run via F5 in Visual studio. If I open a source file, I can set break points and have them hit.
What I'm not sure how to do, is load the entire source, as if I were working with a C# .NET solution. As I understand it, there are no project files with the Firefox source, as it is not windows specific source. I have followed an online example that suggests creating using 'project from existing code' option in VS, which resulted in VS grinding to a halt as there were so many files.
What are the steps to getting the code into an environment (preferably Visual Studio) that makes it simple(ish) to edit, debug and navigate the source code.
Note: Instructions I have been working through so far are here: https://cs.senecac.on.ca/~david.humphrey/writing/debugging-firefox.html
From you question, I beleive you are almost there. You have a working build ? That means you have :
A Solution File (*.sln)
A Project file (*.vcxproj or *.vcproj depending on yoru visual studio version)
With that in hand, what works best for me is this layout (adapted to your needs) :
Starting from a root folder of you liking, say MyProject
Create a new Empty solution there
Move the folder with your working build in a subdirectory, like MyProject\MyCustomFirefox
In Visual Studio "Add an existing project" and find your vcxproj file
In the same solution, create a C# project like you always do, in a directory at the same level as your FF build, like MyProject\MyFirefoxController
In short the solution file is pretty much alone in the root directory, and each project is in its own directory.
You will also need to adjust build options so that the output files (a DLL or an EXE) is seen by your C# project. While your are at it, make the C# project dependent on your Firefox build : it will instruct the msbuild to rebuild one if you change the other.
This will not work with the Express edition, I beleive. They are single language.
If you have a command line build path, which is creating a VS-debuggable executable, you could try adding all the source files to the project, but marking them 'exclude from build'. Then add a 'post-build step' to call the command line tools.
You may have to do a little more tweaking in the project properties to get the command line output recognized as the output to debug, but theoretically this could work.
I'm fairly new to C++ and an trying to figure out to use the TagLib library for a project I am working on. I'm working with unmanaged C++ in Visual Studio 2010 on Windows 7 64bit. I've never used an external library before so I'm very confused on how to go about this.
From this blog entry I got the libtaglib.a and taglib.dll files. I ran across this SO question on how to use TagLib, but it deals with QT Creator, not Visual Studio and I'm not knowledgeable enough about the subject to understand what is being said to translate it into what needs done for Visual Studio.
So, some questions:
Is it even possible to do this with unmanaged code?
What exactly is the function of a .a file?
Most importantly, how do I go about using the taglib.dll in my program??
I've been all over Google looking for a way to do this, but my major problem is that everything I run across is over my head. Please let me know if more info is required. Any help is very much appreciated! Thanks!
I seem to have gotten it working successfully. Here's a rough outline of what I did:
1.) I used CMake to generate the Visual Studio solution.
2.) I attempted to build the tag project in the VS solution, but it failed.
3.) I made the corrections to a few source files as outlined here: http://old.nabble.com/taglib-fails-to-compile-with-MS-VC%2B%2B-2010-td29185593.html
4.) I built the tag project again in release mode. This time it was successful.
5.) I copied the resulting dll, def, and lib files to the same directory as the source files for my project.
6.) I copied the header files from the taglib source to a subdirectory in my project (not sure if this entirely good practice)
7.) In my project settings, I set the subdirectory with the header files as an additional include directory.
8.) I added the dll, exp, and lib files to my project by just going to Add>Existing Item.
9.) I added some code from the taglib examples and built it. Everything worked so I think I got it.
One caveat I ran into, since the DLL was built in release mode, my project had to be run in release mode or it would crash. I'm guessing that if I replaced the DLL with one built in debug mode I could run my program in debug mode, but I have not tried this.
You cannot use libraries specific to GCC (you can tell because they have .a extensions) with Visual Studio. You will have to build the library from source in order to use it with MSVC. Once you have done that it's a simple matter of adding the .lib generated from the build process to your project and things should work out of the box. (Note that it's a .lib you need whether you're compiling for dynamic linking or not -- doesn't matter in msvc land)
EDIT -- after looking at TagLib itself --
In order to compile TagLib you'll need to get the CMake build system, and TagLib itself, and have CMake build you a visual studio solution. Using that solution you'll be able to build the .libs and .dlls you need. Note that because TagLib is a KDE library, you'll probably need to also build some QT bits in order for everything work work successfully. However, I don't have specific experience with the library so I'm not going to be all that helpful here.
Yo do not have to recompile the source (to create the .lib file) if you have the .dll file. With dumpbin /exports and lib (both came with Visual Studio) yo can create a lib that you can link with your application. In this link you can see a nice explanation: http://www.coderetard.com/2009/01/21/generate-a-lib-from-a-dll-with-visual-studio/
But as Billy Said, probably you would need other parts of QT to use this library.
I have been trying to set up OpenCV for the past few days with no results. I am using Windows 7 and VS C++ 2008 express edition. I have downloaded and installed OpenCV 2.1 and some of the examples work. I downloaded CMake and ran it to generate the VS project files and built all of them but there with several errors, and couldn't get any farther than that.
When I ran CMake I configured it to use the VS 9 compiler, and then it brought up a list of items in red such as BUILD_EXAMPLES, BUILD_LATEX_DOCS, ect. All of them were unchecked except BUILD_NEW_PYTHON_SUPPORT, BUILD_TESTS, ENABLE_OPENMP, and OPENCV_BUILD_3RDPARTY_LIBS. I configured and generate without changing anything and then it generated the VS files such as ALL_BUILD.vcproj. I built the OpenCV VS solution in debug mode and it had 15 failures (maybe this is part of the problem or is it because I don't have python and stuff like that?)
Now there was a lib folder created after building but inside there was just this VC++ Minimum Rebuild Dependency file and Program Debug Database file, both called cvhaartraining. I believe it should have created the .lib files I need instead of this. Also, the bin folder now has a folder called Debug with the same types of files with names like cv200d and cvaux200d.
Believe I need those .lib files to move forward.
I would also greatly appreciate if someone could direct me to a reliable tutorial to set up VS for OpenCV because I have been reading a lot of tutorials and they all say different things such as some say to configure Window's environment variables and other say files are located in folders such as OpenCV/cv which I don't have. I have gotten past the point of clear headed thinking so if anyone could offer some direction or a simple list of the files I need to link then I would be thankful.
Also a side question: why when linking the OpenCV libs do you have to put them in quotes?
If you're just getting started, you should probably grab the prebuilt libraries for OpenCV instead. It's OpenCV-2.1.0-win32-vs2008.exe from this page.
Once you have that, there is really no setup. Just link to the (already built) lib files in any VS project you create, and make sure the OpenCV include directory is in the projects include path.
I have a source code for a project with their make files. I want to create a Visual Studio (2005) solution from it. Is there any direct way to do this? can anyone help me please. I spent hours for searching, but couldn't find a way to do this.
Thanks.
Unfortunately, Microsoft removed this capability after VC++ 6.
If all you're looking to do is to build a Visual Studio project from a command line or script, you can use the devenv command to build using the settings in a project.
Something like:
devenv /build debug /project myproj myapp.sln
Ans starting with VS2010, C++ projects will use the MSBuild system, so you can drive builds using that technology.
If you really want a makefile, you'll need to write it up by hand (or maybe there's some 3rd party tool out there that I'm unaware of).
I'm not sure whether this solution can help you. Which I tried and it worked well in my previous projects. It need manually add the files.
Create a blank VS solution/project. Add the source files into that project.
Mark all source files as "Excluded from building". You can right click the files in project explorer and find the setting. So now nothing will happen when you build your project.
In project setting, find something like "Custom build step". Add the commands that invoke your original build command. (You may write different build command for debug/release ). You can also set the post-build actions such to copy your result to some folder....
Now you can edit and build source files.
For my experience, I can even debug it after setting the executable.
Hope this can help you.
If this is a one-off then it is easier to just create the VS project manually in visual studio.
If you are going to need to do this often look at ceating the project in something like cmake or Qt's .pro whcihc an generate makefiles and VS build files from the same defintion.
Do you want to use the makefile to build? You can create a project from existing source in VS 2005 and setup the project to use make to build (and the wizard will take you through all of this).
I am using VS2010.In order to build you can create a project from existing code. In VS2010 you can create project from existing code File->New->Project from Existing code. You can specify the other parameters and then ready with the solution. I did not go with make file but followed this approach which is working great.