| .gif) | AuthoringScope | Encapsulates information about the source as obtained from a parsing operation. | 
| .gif) | AuthoringSink | This class is used by the parser to gather information about the source being parsed. | 
| .gif) | CodeWindowManager | Wraps an IVsCodeWindow object for use in a language service. | 
| .gif) | ColorableItem | Provides a default implementation of the VSIP interface IVsColorableItem. | 
| .gif) | Colorizer | This class implements the IVsColorizer interface and is used to support syntax highlighting in an editor. | 
| .gif) | CompletionSet | Represents an IntelliSense completion list that is displayed in the current text view. | 
| .gif) | Completor | Wraps and applies multiple changes to a text view as a single operation. | 
| .gif) | CompoundAction | Manages a group of edit operations that are treated as a single operation. | 
| .gif) | CompoundActionBase | Used to create CompoundAction objects. | 
| .gif) | CompoundActionFactory | Creates CompoundAction objects based on specific source files and views. | 
| .gif) | CompoundViewAction | Manages multiple edit actions that are treated as a single operation, optimized for a text view. | 
| .gif) | Declarations | Manages a list of declarations to be shown in an IntelliSense drop-down list. | 
| .gif) | DefaultFieldValue | Infrastructure. Associates a default value with a field name as defined in a code snippet template for a language service. | 
| .gif) | DocumentProperties | Provides support for document-specific properties associated with a language service. | 
| .gif) | DocumentTask | Represents an item for a language service in the Error List Options window. | 
| .gif) | DropDownMember | Represents a single entry in a combo box on a drop-down bar. | 
| .gif) | EditArray | Merges multiple edit operations to create a single operation. | 
| .gif) | EditorControl | Handles the editor window. | 
| .gif) | EditorFactory | This class provides a default editor factory implementation that hosts the Visual Studio core editor. | 
| .gif) | EditorFactory.EditorInfo | Contains data about a specific editor. | 
| .gif) | EditSpan | Describes an edit operation. | 
| .gif) | ExpansionFunction | Provides support for expansion functions in code snippets for a language service. | 
| .gif) | ExpansionProvider | Provides support for inserting code snippets into source code. | 
| .gif) | FilePathUtilities | Static utilities for getting and setting file paths. | 
| .gif) | LanguagePreferences | Provides support for language service-specific preferences. | 
| .gif) | LanguageService | This is the base class for a language service that supplies language features including syntax highlighting, brace matching, auto-completion, IntelliSense support, and code snippet expansion. | 
| .gif) | MethodData | Provides support for the IntelliSense method tip operation. | 
| .gif) | Methods | Represents a collection of method signatures obtained from a parsing operation in a language service. | 
| .gif) | ParseRequest | Provides information to execute a parsing operation in a language service. | 
| .gif) | SimpleEditorView | The abstract class that represents a generalized simple editor view. | 
| .gif) | Source | Represents a source file in the language service and controls parsing operations on that source. | 
| .gif) | TextSpanHelper | A utility class that provides methods for manipulating and comparing instances of the TextSpan class, and also for validating positions. | 
| .gif) | TextTipData | Provides a default implementation of IVsTextTipData for use in the IVsTextTipWindow for displaying tool tips. | 
| .gif) | TokenInfo | Provides information about a particular token encountered by a language service's language parser. | 
| .gif) | TypeAndMemberDropdownBars | Provides support for the combo boxes showing type and member information as offered by a language service. | 
| .gif) | ViewFilter | This class handles various editing and IntelliSense commands for a language service. |