B:

A window whose contents are backed up, so that the window never becomes invalid, and therefore never needs to be redrawn except at application request.

See also: redraw  invalid  window  

The colour with which to fill the parts of the view rectangle in which text (and paragraph fill colour, if one has been set) cannot appear. Examples of such areas are below the last line of the document and in the label and line cursor margins. May also be used to fill the left text margin, if one has been set.

See also: text area  paragraph fill colour  line cursor margin  label margin  left text margin  line  

Process of safeguarding data on the device by copying it to PC. Symbian OS has a backup and restore framework which applications should use to ensure that system backups can happen effectively.

Basic Application Framework Library, a collection of various utilities.

See also: Engine Utilities  

Printing : Horizontal portions of a page whose height depends on the size of the memory buffer of the printer device in use.

See also: printer device  

An area of physical address space reserved for a particular type of memory (e.g. RAM, ROM, I/O) and which may be empty or only partially filled

The band of frequencies of a signal before it is modulated for transmission at another frequency. A baseband processor refers to dedicated processor in a mobile phone to handle communication functions.

Application Engines : In an anniversary entry, this allows the application to display a number of years between the base year and the current anniversary.

Text Content : A pointer to the format layer whose attributes are inherited by another layer. To find out a character or paragraph's effective formatting, all based-on links must be examined, beginning at the format layer upon which all other layers are based.

See also: format layer  effective format  

The baseline of a character is the notional line that splits the descent of a character from its ascent.

See also: character cell ascent  character cell descent  

The perpendicular distance from the baseline of a font to another parallel line, such as the underline, strikethrough, superscript or subscript position.

See also: baseline  

Bank Descriptor Block, a list of entries describing banks.

Binary distribution format - used in font definition files.

See also: Fontcomp  

A telephone network used to carry a call.

The type of data service, e.g. Asynchronous, or Synchronous.

Bit error rate.

When a file is open in binary mode, the data bytes in the file are read and written without any intervention by the file system.

See also: text mode  

The screen and bitmap-specific graphics drawing component.

See also: bitmap  

Provides the pixel patterns used by pictures, icons and masks, sprites and brush styles for filling areas of the display.

See also: mbm 

Converts bitmaps between MS Windows to Symbian bitmap format and vice versa.

See also: multi-bitmap file format 

A bitmap whose pixels are used to hinder or allow the individual pixels of another bitmap to be written to a graphics device.

See also: icon  bitmap  

A graphics operation to draw a bitmap.

See also: graphics operation  bitmap  

SBSv1 build tool. It processes the component description file (bld.inf) in the current directory, and generates a batch file (abld.bat) and several build batch makefiles (.make.abld) which are used to build the component.

See also: abld.bat batch file 

Block transfer copy of pixel data from memory to a graphics device.

See also: stretch blit  

A short-range radio communications technology, standardised by the Bluetooth SIG (Special Interest Group) in the form of the Bluetooth Specification.

Tool that converts bitmaps between Windows and Symbian OS bitmap formats.

Extension for a Windows bitmap file.

See also: windows bitmap  

Optional code which runs immediately on reset, before the bootstrap.This is also referred to as the core loader, or just the loader.

A short program, often written in assembler, which gains control when the machine is first powered on. The bootstrap sets up an environment that allows the Kernel to continue to boot Symbian OS (e.g. setting up memory, I/O devices and creating virtual memory space).

The brush is used, in basic graphics functions, for filling areas drawn with the shape primitives, and also for text background fills.

See also: pen  graphics context  brush attribute  

Brush attributes, in basic graphics functions, are: brush colour, brush origin, brush style.

See also: brush  brush origin  brush style  

The colour which the brush uses for fills.

See also: brush attribute  

The point at which the top left corner of the pattern reference tile is positioned.

See also: brush attribute  

The style with which the brush fills fillables. This may be null, solid colour, a built-in pattern or a bitmap pattern.

See also: brush attribute  

Development board for the StrongArm SA-1100.

A section in an executable's disk image that denotes how much uninitialised data the executable needs to run.

An area of memory designated to contain a portion of data awaiting processing.

See also: dynamic buffer  descriptor 

The position of a byte within a segmented or flat buffer: bytes are numbered from zero, and the address of the byte indexed by a given buffer position is calculated each time the buffer is accessed.

See also: flat buffer  segmented buffer  

Data types which are part of the C++ language; e.g. unsigned int, unsigned char etc.

An object which co-ordinates the behaviour of a group of option buttons. It keeps track of the current chosen option button.

See also: option button