

If IntelliSense is showing incorrect information (or fails to show anything at all), the first place to check is the Error List window. In this case, the settings controlling IntelliSense and Browsing will be under NMake property page, IntelliSense category: If your project is a Makefile project, then you will see the following properties dialog.

If some configurations do not have the same values as the rest, then you will see. By default, All Configurations and All Platforms will be selected, so that the changes will be applied to all build configurations: To check the project’s configuration, open the Properties for your project. This is especially important for projects that are built outside of Visual Studio: such a project may build without any errors, but show squiggles in Visual Studio IDE. The two settings that have the greatest effect on the accuracy of IntelliSense and Browsing operations are the Include Paths and the Preprocessor macros. This article provides some tips on configuring the projects and describes a few ways that you can investigate configuration problems. Whether you are creating a new (or modifying an existing) C++ project using a Wizard, or importing an project into Visual Studio from another IDE, it’s important to configure the project correctly for the IntelliSense and Browsing features to provide accurate information.
