I:

In the context of applications, icons represent applications when embedded, or when they are shown on the extras bar or system shell. In the context of the GDI, an icon is a bitmap (and mask) which is drawable and selectable. Icons are commonly used as visual representations of commands, data, and applications.

See also: application  bitmap  bitmap mask  

A visual representation of an embedded object which displays an icon representing the embedded object.

See also: door  glass door  

Integrated Development Environment.

The idle thread, also called the NULL thread, is a system thread that runs when there are no other threads ready to run.

See also: Null thread. 

Unique 32-bit identifier for window group.

The certificates used for secure software installation are known as 'Identity Certificates', in which the information supplied with certificate is a name identifying the public key's owner.

International Mobile Station Equipment Identification — a phone serial number.

Within the context of an application program, to use a function or data defined in a DLL.

See also: DLL  export  

A static library which an application program uses at link time, to resolve references to symbols defined in a corresponding DLL. Information from this library concerning the location of export functions in the DLL is included in the application's executable file.

See also: DLL  export  static library  

A tag that can be used in a customisation file to indicate to the context sensitive help compiler that the marked text must be preceded by the graphic or text for an important event in the output help file.

See also: note effect  customisation file  

A class which supports incremental matching of a pattern against a set of stored strings.

A potentially long-running database function that is broken into smaller steps, enabling applications to remain responsive.

See also: database  

See incremental operation.

See also: incremental operation  

In the context of DBMS, an ordering of one or more columns (the key) from a table in a database. The Message Server Index records state and generic message header information for every entry.

See also: key  database  table  

The exchange of data on infrared system.

For Bluetooth, the device that initially requests communication.

An agenda entry may be stored inline or out of line. Inline means that the entry's rich text object is stored in the same stream as the entry.

See also: out of line  

Symbian installation (SIS) file, which provides a standard way for packaging files for deployment to a device.

See also: installation file generator 

Creates a digitally signed installation file using the public/private key pair.

See also: installation file 

A concrete control which supports editing an integer value.

A concrete control which supports editing an integer range value. Has two fields; the second may not be smaller than the first.

A class that primarily defines a protocol, but does not provide an implementation. This means they only describe the expected behaviour of an object. The use of multiple inheritance is restricted to interface classes.

See also: mixin protocol  

The process of reading data from a stream and assigning the data to an object or constructing an object from the data.

The country dependent dialling prefix used to make an international call, e.g. the prefix is 00 in the UK.

See also: national dialling code  national dialling prefix  

Code that the processor jumps to on receipt of an interrupt request.

The time between an interrupt going off and the interrupt being serviced by the operating system.

An area of a window is invalid if the window server knows that its content was not drawn by the application. Applications may also invalidate parts of their own windows.

See also: window  redraw  

An I/O control operation on a communication socket, e.g. to set an option on that socket.

Inter process communication. Communication across thread and process boundaries. Used by servers in Symbian OS.

See also: server  

Infra Red Data Association. This body sets the standards used in infra-red communications.

Infrared Object Exchange protocol used to exchange vCards and vCals.

On the ARM family of processors, a normal (priority) interrupt.

Interrupt Service Routine. Code that performs actions necessary to deal with the condition that caused the interrupt.

Interworking Function. This is the interface between the GSM PLMN and an outside network such as the PSTN.

See also: PLMN  PSTN