How to use librealsense in CLion?

[offchan42]

I am new to C++ ecosystem so maybe this is a question that might be quite general (but I'm not sure) I have installed CLion, Cygwin, g++, gcc, make, CMake and it's working and I can do hello world C++ project.

I've also installed Intel.RealSense.SDK.exe already. But when I tried to #include <librealsense2/rs.hpp>, it doesn't work because it could not find that library. So my question is how do I include librealsense2? What do I need to do to use librealsense on my Windows 10? Please provide concrete instructions if possible. Or point me to the link that teaches how to do this.

[offchan42]

I've used include_directories() command in the CLion and it seems the project now sees those header files. The problem is that now the IDE cannot locate the functions specified in those header files. How do I include the library in CMake or g++?

Let me simplify the problem to not be involving CMake or CLion at all. Suppose I use g++ to compile this, I can use -I option to specify the "C:\Program Files (x86)\Intel RealSense SDK 2.0\include" directory of realsense. But what do I do with -L option? Where should I point it to? C:\Program Files (x86)\Intel RealSense SDK 2.0\bin\x64 or "C:\Program Files (x86)\Intel RealSense SDK 2.0\lib\x64\realsense2.lib" don't seem to work

[offchan42]

I think this should be mentioned somewhere in the document about how to include the SDK in the code: @dorodnic Do you know the solution? I'm not building from source.

[RealSenseCustomerSupport]

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Hi @of99555, Which toolchain do you use in CLion?

I use VS2017 toolchain in CLion. And CMakeLists.txt like this,

include_directories("C:\Program Files (x86)\Intel RealSense SDK 2.0\include") link_directories("C:\Program Files (x86)\Intel RealSense SDK 2.0\lib\x64") add_executable(rs-example rs-example.cpp) target_link_libraries(rs-example realsense2.lib)

[offchan42]

I have Cygwin toolchain and VS2017 toolchain. I used Cygwin before. So now I'm using VS2017 toolchain like you. I still get an error (the program interrupted without returning 0). @RealSenseCustomerSupport

Here is the toolchain setting: Is the architecture correct? I tried with x86 but it did not work also.

This is CMakeLists.txt file:

The project name is TestC__ (new project in CLion). Actually, it was TestC++ but the ++ symbol is not allowed in the name.

Here is the main file:

Here's the output after Run (Shift+F10): You will see that the hello world is not even printing.

This is the project explorer:

How do I fix this?

[RealSenseCustomerSupport]

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There is no this issue in my test project. I guess, there are different version realsense2.dll in your PC. You can try copy C:\Program Files (x86)\Intel RealSense SDK 2.0\bin\x64\realsense2.dll to your "cmake-build-debug" folder.

[offchan42]

Thank you for the suggestion.

At first, there is no realsense2.dll file in this folder. Then I copied as you requested:

The build passes successfully (the previous version was successful as well):

It fails when I run (with a different message):

You will see that the hello world message is now printed. But the program doesn't continue. When I press Retry, the program quits without returning zero:

What could be the next possible issue?

Some rants: I know how to code in C++ a lot. I even use it to do competitive programming in the past. But when it comes to the compiling/building other people' source, it's always problematic. I spent most of my time trying to install the system. Is there a resource you would suggest about understanding stuff required to grasp C++ ecosystem so that I can build/compile/fix other people's projects better? It should be about CMake, CLion, Visual Studio, library files, Windows/Linux compatibility, etc.

[RealSenseCustomerSupport]

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Throw an except in your code (Line 9), I think.

There is an article about Windows how to search the .dll files. https://docs.microsoft.com/en-us/windows/desktop/dlls/dynamic-link-library-search-order

[offchan42]

Hey, it's working now!

So It seems like whenever there is a runtime error, the program quits without informing me anything useful. (I have also changed runtime_error to exception as you suggested. I'm not sure if that's what you meant though.)

And I also cannot use the debug functionality of CLion when I use VS2017 toolchain.

How do you usually debug the software when there is a dialog without an informative message? How do you show the exception message?

[offchan42]

This is how I'm dealing with the error for now:

Suggest me if there is a better way.

[RealSenseCustomerSupport]

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Why don't you use Visual Studio to replace CLion on Windows? if you want to use the debugger on Windows.

The exception is not an issue, according to your code. more information about exception handling. https://docs.microsoft.com/en-us/windows/desktop/debug/exception-dispatching

[offchan42]

Sure. I will use Visual Studio when I want to debug. I read what you sent and from what I understand it simply means that if I throw something in the main() function, the program will ExitProcess without telling me any exception message? How do I show the message then? Is the way I did using cerr already good enough?

And the reason that I don't want to use VS2017 is because I'm familiar with JetBrains IDE. All the keyboard shortcuts and refactoring commands are very helpful to me.

[RealSenseCustomerSupport]

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How to process an exception, that's your decision.

[offchan42]

Yep. It is my decision. But I need to see a practical example. That's why I asked in your case what you do. Then I can decide what to do with it. I just wanted to show the message when the exception is not caught with try-catch.

[RealSenseCustomerSupport]

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@off99555 For exception handling, https://docs.microsoft.com/en-us/windows/desktop/debug/exception-dispatching should have provided the guidance about this. Any other questions?

[offchan42]

OK. No other questions. Thank you!