Solution and Project File Structure

A solution file (*.sln or *.slnx) contains multiple project files.
Typical C++ project files are XML files in *.vcxproj or *.vcxitems naming.
The XML file *.vcxitems.filters or *.vcxproj.filters organizes source files in solution explorer folders (virtual folders) that could be different from physical file system, which creates a human friendly view.
The XML file *.vcxproj.user contains some temporary local configuration for a project. This file is not tracked by git, but it contains arguments for running the project.
When adding a source file to a specific solution explorer folder:
- It must be also added to one or multiple project files.
- Find the *.vcxitems.filters or *.vcxproj.filters file with the same name.
- Each file must be attached to a solution explorer folder, described in this XPath: /Project/ItemGroup/ClCompile@Include="PhysicalFile"/Filter.
- Inside the Filter tag there is the solution explorer folder.
- Edit that *.vcxitems.filters or *.vcxproj.filters file to include the source file.

Renaming and Removing Source Files

All affected *.vcxitems, *.vcxproj, *.vcxitems.filters and *.vcxproj.filters must be updated.