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Asked: 2026-06-08T05:15:17+00:00

I’m starting with a new Win32 console app project in Visual Studio 2010. I

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I’m starting with a new Win32 console app project in Visual Studio 2010. I am setting up my environment to support beginner level OpenGL programs. I am in the process of adding required *.cpp files and *.h files. I added

#include "../../shared/gltools.h"//opengl toolkit

Error “cannot open source file” is displayed when I hover over #include. I attempted to add the required file. I right click Source files and choose > Add > New Filter > called it shared and hit enter.

What is a filter? I thought I would be adding a physical folder rather than a filter. How does this differ from “External Dependencies”?

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1 Answer

  1. Editorial Team

    In the project properties, unde Compiler, find the field Additional Include Directories and add the directory where the file is located, or, alternatively, the directory where /shared/ is located.

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