Glossary

 

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label control
A graphical element that provides a way for the application developer to display static text on screen.

Language Identifier (LANGID)
A standard international numeric abbreviation for a country or geographical region. An LANGID is a 16-bit value that consists of a primary language identifier and a secondary language identifier. A LANGID is constructed using the MAKELANGID macro.

latching
An attribute of a button control that causes the button to stay down after being pressed.

latency
A delay in response. For example, the interval between the time that a sound buffer plays and the time that the speakers actually reproduce the sound.

launch entry
A registry entry that specifies the order in which applications launch.

layer
A component in the system input panel (SIP) that consists of a number of buttons to display in an on-screen keyboard format. A system input panel control can have more than one layer.

layered device driver
Layered device drivers split device driver code into an upper layer called the model device driver (MDD) and a lower layer called the platform-dependent driver (PDD). The MDD layer contains code that is common to all drivers of a given type. The PDD layer consists of the code that is specific to a given hardware device or platform. The MDD calls specific PDD routines to access the hardware or hardware-specific information. When using a layered driver, you can reuse the common MDD code provided by Microsoft, and only write new PDD code that is specific to the your hardware. If you are porting one of the sample drivers to new hardware, you only need to port the PDD layer, and the MDD layer can be used directly from the sample driver. The MDD and PDD are linked at Sysgen time.

layout grid
A framework of parallel dotted lines that assists you in precisely positioning screen objects. When the layout grid is active, controls appear to snap to the lines as if magnetized.

lead-in
On an audio compact disc, the lead-in contains a table of contents for the track layout.

lead-in
On an compact disc, the lead-in contains a table of contents for the track layout.

lead-out
On an audio compact disc, the lead-out indicates the end of data.

lead-out
On an compact disc, the lead-out indicates the end of data.

legacy key
A key that is translated by ACC to provide better support for 101-key keyboards. Legacy keys are used to support the use of the CEPC_APC platform.

Licensing fees
An up-front and either one-time or annual cost to install software developed by a third-party onto your network.

light map
A texture or group of textures that contains lighting information for a 3-D scene.

linked font
The font glyphs that you add to a base font when performing font linking.

Liquid Crystal Display (LCD)
A type of display used in digital watches and many portable computers. LCD displays utilize two sheets of polarizing material with a liquid crystal solution between them. An electric current passed through the liquid causes the crystals to align so that light cannot pass through them. Each crystal, therefore, is like a shutter, either allowing light to pass through or blocking the light.

list box
A control that enables the user to choose one option from a list of possibilities. The list box appears as a box, displaying the currently selected option, next to a button marked with a down arrow. When the user clicks or taps the button, the list appears. The list has a scroll bar if there are more options than the list has room to show.

list element
The content required to fill a single list item in a list control that is a part of GUI Services.

list element collection
A set of list elements in GUI Services. The list elements have a numbered order within the collection, and there is a concept of a "first" and a "last" element. The first element is given the lowest number and the last element is given the highest number.

list item control
A list item control is a graphical control in GUI Services that displays one list element. The list item controls compose the visual representation of the list. List item controls have an order within the list and the order is represented using the item ID.

list manager control
A graphical element that is responsible for managing the navigation of graphical list items and controlling the state and display of scrolling buttons.

list view
A common control that displays a collection of items, such as files or folders. Each item has an icon and a label.

little endian
A data format where the most significant byte is placed in the highest memory address.

load file
A file that contains a list of commands for the Load function to process. You use load file commands to direct Ppcload.dll to create directories on a Windows CE-based device, copy files into the directories, edit registry entries, execute applications on the Windows CE-based device, and add items to the unload script. The fully qualified path of the load file is given as a command-line argument to Load.

LOC File
The file that tells makeimg which modules need to be localized for each dependent core tree.

local address
An address found on a local network.

Local Area Network (LAN)
A group of computers and other devices dispersed over a relatively limited area and connected by a communications link that enables any device to interact with any other device on the network. LANs commonly include microcomputers and shared resources such as laser printers and large hard disks. The devices on a LAN are known as nodes, and the nodes are connected by cables through which messages are transmitted.

locale
A specific international market.

Locale Identifier (LCID)
A 32-bit value that consists of a language identifier and a sort identifier. In code, an LCID identifies the primary language and any secondary language of a specific locale. An LCID is constructed using the MAKELCID macro.

localization
The process of adapting an application for a specific international market, which includes translating the user interface, resizing dialog boxes, customizing features if necessary, and testing results to ensure that the application still functions properly.

logical block address (LBA)
A method of expressing a data address on a storage medium, such as a compact disc.

logical font
An application-defined description of a font.

logical palette
An array of colors, or a color palette, that an application creates and associates with a device context and uses for graphics output.

Logical Service Access Point (LSAP)
The point of access to a service or application within Infrared Link Management Protocol (IrLMP). This access point is referenced with an LSAP selector (LSAP-SEL).

Logical Service Access Point Selector (LSAP-SEL)
A 1-byte number that corresponds to a Logical Service Access Point (LSAP). This byte is broken into ranges for the Information Access Service (IAS) server, legal connections, connectionless service, and future use.

luminance
The perceived brightness of a given color, as opposed to its hue or its saturation.