Symbian Developer Library


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A wait for a request to complete. Completion will be indicated by a signal.

See also: asynchronous request, signal

wait loop

The construct used to control response to multiple outstanding asynchronous requests.

See also: asynchronous request


Wireless Application Protocol is a secure specification that enables users to access information instantly using devices such as mobile phones, pagers, two-way radios, smartphones and communicators.

WAP browser

Used to locate and display WAP pages.

WAP Server

Manages client access to WAP services.

WAP stack

Is a set of protocols that covers the whole process of wireless content delivery: from the definition of WML and WMLScript for creating and layout of the actual content, the specification of security measures in the WTLS to the lowest parts of the stack dealing with the actual transport of content.


Provides the WAP general datagram transport services above the various data capable bearer services.

whitespace character

A page or line break, space character, tab stop or paragraph delimiter.

See also: paragraph delimiter


A special character which acts as a substitute for one or more characters in a file name or extension.

See also: path


An implementation of the non-GUI parts of the Symbian platform. Its chief purpose is to allow the Symbian application engines to be used to access application documents from programs running on a PC.


An area of the screen for displaying part of the GUI of an application.

window co-ordinate

x,y co-ordinates whose origin is the top left hand corner of the view window.

See also: view window, layout co-ordinates

window group

An invisible window that acts as the parent window for all other windows in an application. Typically, each application has one window group. In the window server, window groups are also the unit of keyboard focus.

See also: window, keyboard focus

window group changed event

An event that occurs whenever a window group is destroyed, and whenever a window group name changes.

window group priority

Priority that allows a window group to override ordinal position of windows in the system.

window origin

The top left corner of a window, from which all co-ordinates are measured.

window server

A server which manages the screen, keyboard and pointer on behalf of client applications.

See also: control environment

window server buffer

A client-side buffer maintained by window server clients, containing requests to the window server. The buffer is only flushed when necessary. This greatly speeds the operation of the system.

See also: window server, flush

window server session

Session between client and window server.

See also: window server, client, server

window-owning control

A control that directly owns a window.

See also: control, window, non-window-owning control

windows bitmap

Bitmap in the MSWindows file format (extension .bmp).

See also: bmp file

wireless information device (WID)

These devices represent the next revolution in mobile communication: voice and computing technology combined in a small, portable computer-telephone with wireless access to both voice and information services. Devices such as mobile phones, pagers, two-way radios, smartphones and communicators.


An XML language used to specify content and user interface for WAP devices; the WAP forum provides a DTD for WML.


A sequence of characters delimited by one or more word delimiter characters. A word delimiter is a paragraph delimiter or a whitespace character, but not a punctuation mark.

See also: character, paragraph, whitespace character

word delimiter

A character that separates words. All whitespace characters are word delimiters.

See also: word, paragraph delimiter, whitespace character

word justification

Full justification of text by adjusting the gaps between words.

See also: character justification

WSP - wireless session protocol

Provides lightweight WAP client/server transactions, with improved reliability over basic datagram services.


Provides lightweight WAP client/server transactions, with improved reliability over basic datagram services.


What You See (on the screen) Is What You Get (printed on paper).

See also: justification