Why is there missing files such as bgs_demo.vcxproj after I follow the video steps?

[zhuruixiang]

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Describe the bug
Why is there missing files such as bgs_demo.vcxproj after I follow the video steps?

To Reproduce

Expected behavior
I hope to get the complete file after following the video steps

Screenshots
If applicable, add screenshots to help explain your problem.

System information

Desktop (please complete the following information):

• OS Platform and Distribution (e.g., Linux Ubuntu 16.04):
• Python version (for issues related to the python wrapper):
• Java version (for issues related to the java wrapper):
• MATLAB version (for issues related to the matlab wrapper):
  win10, python is 3.7.0, OpenCV is 3.4，Visual Studio 2019
  Additional context
  Add any other context about the problem here.

[tatagoswami]

I have the same issue (VS2013), please post fix if any

[andrewssobral]

Hi @zhuruixiang @tatagoswami , sorry for my long delayed feedback to you.
Unfortunately part of the documentation is not up to date, there's no more bgs_demo.vcxproj on the main project.
If you follow this step:
https://github.com/andrewssobral/bgslibrary/wiki/Installation-instructions---Windows#how-to-compile-on-windows-10--msvs2019--opencv-347
You should see the bgslibrary.sln file to build the main project.
If you want to compile the bgslibrary examples (bgs_demo, bgs_demo2, etc), you need to go inside the examples/build and do:

cmake -DOpenCV_DIR=%OpenCV_DIR% -G "Visual Studio 16 2019" ..

and you see the bgslibrary-examples.sln (see screenshot below)

For info, I just released a new version of the BGSLibrary, now v3.1.0.
I tested it on Windows, Mac and Linux, both compiling the C++ library on OpenCV 3.4.7, 3.4.16 and 4.6.0.
I also tested its respective Python wrapper and GT user interface.