VRPN : Sending data from OpenViBE to an external ap

[roberto]

Hi all,

I am trying to follow this tutorial http://openvibe.inria.fr/vrpn-tutorial- ... plication/

I use Visual Studio 2012 to launch the vrpn-applicacion.cpp , and I added the path to the directory with the header files that I downladed here http://www.cs.unc.edu/Research/vrpn/obtaining_vrpn.html .

But when I compile my project, the follow errors appear:

1>vrpn-application.obj : error LNK2019: reference to the external symbol "public: __thiscall vrpn_Button_Remote::vrpn_Button_Remote(char const *,class vrpn_Connection *)" (??0vrpn_Button_Remote@@QAE@PBDPAVvrpn_Connection@@@Z) didn't resolve in the function _main
1>vrpn-application.obj : error LNK2019: reference to the external symbo "public: __thiscall vrpn_Analog_Remote::vrpn_Analog_Remote(char const *,class vrpn_Connection *)" (??0vrpn_Analog_Remote@@QAE@PBDPAVvrpn_Connection@@@Z) didn't result in the function _main
1>c:\users\roberto\documents\visual studio 2012\Projects\Progetto12\Debug\Progetto12.exe : fatal error LNK1120: 2 extern didn't resolve

Could someone help me?

Thanks, regards

Roberto

[roberto]

I have understood that the problem is in these two strings of the c++ code fo the tutorial:

VRPNButton = new vrpn_Button_Remote( "openvibe_vrpn_button@localhost" );

VRPNAnalog = new vrpn_Analog_Remote( "openvibe_vrpn_analog@localhost" );

Why?

[jtlindgren]

Hello Roberto,

Likely the issue is this: VRPN needs to be compiled as a lib, and you must link your application against vrpn.lib. You can get a compiled vrpn that openvibe uses by running win32-install_dependencies.exe from scripts/ in the openvibe source archive. vrpn will be found afterwards under dependencies/.


Happy hacking,
Jussi

[roberto]

Thank you so much for your reply.

You can get a compiled vrpn that openvibe uses by running win32-install_dependencies.exe from scripts/ in the openvibe source archive. vrpn will be found afterwards under dependencies/.

Are you able to give me some clearer guidance about how to do that (that is not "search on google")?

Thanks for interest in my problem,

regards

Roberto Meattini

[roberto]

Finally I find the solution! For the community, regards to what I wrote in the previous posts:

- Simply I add the file vrpn.lib (that is in pc_win32>Debug in the directory downlaoded from here: http://www.cs.unc.edu/Research/vrpn/obtaining_vrpn.html) in [right click on Visual Studio Project]>properties>linker>input>Additional dependencies .

Now it works fine. Thanks for the previous helps!