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How to use sample from AR_track_ALVAR

Hello,

I'm trying to run the sample "sampleTrack.cpp". When the program is running it is not able to open the camera because it need to use highgui plugin. So I added Cmakelists.txt from platform to the main Cmakelist with add_subdirectory(src/platform) but when doing my catkin_make, i'm encountering an issue :

CMake Error at ar_track_alvar/src/platform/CMakeLists.txt:62 (add_library): Cannot find source file: Capture.h Tried extensions .c .C .c++ .cc .cpp .cxx .m .M .mm .h .hh .h++ .hm .hpp  .hxx .in .txx

It can't find headers even if they are in the good directory. I think there is an easy way to use those samples but there is not mutch ALVAR documentation so I Have no idea how to fix the problem.

Thanks in advance!