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image code

The short form of the term “image encoder/decoder.” Software or an algorithm that converts images to a specified file format (encoder) or from file format to displayed image (decoder).

imperative security check

A security check that occurs when a security method is called within the code. This type of check can be data-driven and can be isolated to a single location within an object or method. For example, if the name of a file is known only at run time, an imperative security check can be invoked by passing the file name as a parameter to a security method. See also: declarative security check.


A zero-based number used to designate an item in a series of items. For example, some .NET Framework methods and properties use an index to designate a character in a string or an element in an array or collection.


A class member that permits instances of a class or structure to be accessed in the same way as arrays. Indexers are similar to properties, except that the get and set accessor methods of indexers take parameters, while property accessor methods do not. See also: class, property, structure.


A mechanism used to report data about the state of system hardware and software. WMI creates instrumentation by modeling the system using classes based on the Common Information Model (CIM). WMI in the .NET Framework creates instrumented classes by adding attributes. See also: Common Information Model.


A reference type that defines a contract. Other types implement an interface to guarantee that they support certain operations. The interface specifies the members that must be supplied by classes or other interfaces that implement it. Like classes, interfaces can contain methods, properties, indexers, and events as members. See also: contract , indexer, property, reference type.

intermediate language

See definition for Microsoft intermediate language.

internal style

A style in an internal style sheet. See also: internal style sheet.

internal style sheet

A style sheet contained in an ASP.NET mobile Web Forms page.

interop assembly

An assembly containing definitions of COM types described in metadata. An interop assembly is typically produced by the Type Library Importer (Tlbimp.exe). See also: assembly, primary interop assembly.

intrinsic event

An event that WMI provides, which is a notification of a change in the standard WMI data model.


An operator in the WQL WHERE clause, that is used to retrieve instances from a class hierarchy. See also: ASSOCIATORS OF, GROUP, HAVING, REFERENCES OF, SELECT, WHERE, WITHIN.