PDF Extending the Delphi IDE - codesecure.eu

The API is declared in the unit TOOLSAPI.PAS. For Delphi XE, this unit can be found, by default, in the folder: C:\Program Files\Embarcadero\RAD Studio\8.0\source\ToolsAPI It not only contains the definitions of the interfaces but also has a lot of useful comments in the source code that can help in learning the purpose of the interfaces.