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Monday, February 20, 2012

Symbian Terminologies : Terms beginning with I

I

icon
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.

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

IDE
Integrated Development Environment.

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

identifier
Unique 32-bit identifier for window group.

identity certificates
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.

IMAP4
Internet Message Access Protocol. E-mail protocol.

IMEI
International Mobile Station Equipment Identification — a phone serial number.

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

import library
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.

important effect
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.

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

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

incrementally
See incremental operation.

index
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.

Infrared beaming
The exchange of data on infrared system.

initiator
For Bluetooth, the device that initially requests communication.

inline
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.

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

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

integer editor
A concrete control which supports editing an integer value.

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

interface class
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.

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

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

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

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

invalid
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.

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

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

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

IrOBEX
Infrared Object Exchange protocol used to exchange vCards and vCals.

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

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

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

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