Apple Mac OS developers glossary letter L

What is Variable Loop What is In AppleScript, a variable whose value controls the number of times the statements in a repeat statement are executed
What is Parameter Labeled What is In AppleScript, a parameter that is identified by a label. See also positional parameter
What is Font Label What is The font used for labels with controls such as sliders and icon bevel buttons. It is 10-point Lucida Grande Regular
What is Resampling Lanczos What is resampling values in a data set. vImage uses it as a default technique for determining new pixels that did not previously exist in the
What is Language What is The written and spoken methods of combining words to create meaning used by a particular group of people
What is Font Resort Last What is types of Unicode characters. These glyphs can be used as a backup to any other font; if the font cannot represent any particular Unicode
What is Latency What is required for an audio sample to proceed from an input to a corresponding output. Total latency, depending on the scope of the system under
What is Launch What is To start up an application that was not previously running. Compare activate
What is Options Launch What is A set of flags specifying the manner in which an application is to be opened
What is Sequence Launch What is an application immediately on being launched, indicated visually to the user by the application’s icon bouncing in the Dock
What is Services Launch What is enables a running program to open other applications, documents, or URLs in a way similar to the Finder or the Dock
What is Database Services Launch What is Services records information about available applications and the kinds of documents or URLs they are capable of opening
What is Specification Launch What is LSLaunchFSRefSpec or LSLaunchURLSpec , used to specify to Launch Services the manner in which an item or items are to be opened
What is Layer What is prioritizing the tracks in a movie or the overlapping of sprites. When it plays a movie, QuickTime displays the movie’s tracks according to
What is View Backed Layer What is uses a Core Animation layer to cache its drawing content. The view is responsible for managing the layer tree; the developer should not
What is Context Layer What is CGLayerRef) designed for optimal performance. Introduced in OS X v10.4, a layer context is a much better choice for offscreen drawing than
What is View Hosting Layer What is An instance of an NSView object that hosts a Core Animation layer tree. The developer is responsible for managing the layer tree directly
What is Cache Layout What is information ATSUI needs to draw a range of text associated with a text layout object. This includes caret positions, the memory locations
What is Pane Layout What is A pane in the Print dialog that lets the user set the number of pages per sheet and the type of border on a page
What is Ldap What is Lightweight Directory Access Protocol. A standard client-server protocol for accessing online directory services
What is Edge Leading What is first when reading text of that glyph’s language. For glyphs of left-to-right text, the leading edge is the left edge; for glyphs of right
What is Frames Leading What is of audio data that precede, in time, the nominal starting frame for an input stream . See also priming . Compare trailing frames
What is Atom Leaf What is In QuickTime, an atom that contains only data and no other atoms
What is Bearing Side Left What is The white space between the glyph origin and the visible beginning of the glyph
What is Level What is signal strength resulting from a given input level and gain in an audio device or system. Level within analog audio circuitry is often
What is Compression Level What is audio signal, typically by reducing the gain ratio for amplitudes above a specific level. Compare limiting
What is Indicator Level What is A control that displays the level or capacity of something
What is Trust Of Level What is validity of a certificate, based on the certificates in its certificate chain and on the certificate extension s the certificate contains
What is Lfe What is typical channels in 5.1 Surround Sound . The LFE channel covers the bottom two or three octaves of audio and is typically used to enhance
What is Library What is UNIX feature for monitoring low-level system events
What is Lifebeat What is applications to wotaskd to report their activity. The four types of lifebeat messages are: has started, is alive, will stop, and will crash
What is Lifetime What is In AppleScript, the period of time over which a variable or property is in existence
What is Ligature What is A glyph that is created when two or more characters are combined to create a new character
What is Decomposition Ligature What is component glyphs during justification so that the individual glyphs may more evenly occupy the space allotted to the ligature
What is Splitting Ligature What is The division of a ligature for hit-testing purposes into regions corresponding to each of its component glyphs
What is Limiter What is In audio, circuitry or software that limits signal amplitude to a user-defined maximum. Compare level compression
What is Limiting What is In audio, the process of preventing signal amplitude from exceeding a user-defined maximum
What is line and layout attributes What is of text associated with the text layout object are displayed and formatted. Line attributes control an individual line of text; layout
What is Linear What is In audio, describes a transfer function whose output signal is directly proportional to the input
What is Gradient Linear What is See axial gradient
What is Pcm Linear What is See LPCM
What is Breaking Line What is The process of determining the proper location at which to truncate a line of text so that it fits within a given text width
What is Cap Line What is The style that Quartz uses to draw the endpoint of a line—butt, round, or projecting square
What is Pattern Dash Line What is In drawing, the repeating series of line segments and spaces used to paint a dashed line
What is Direction Line What is particular language is written and read. The English language has a left-to-right line direction; Arabic and Hebrew have a (primarily
What is Join Line What is The style that Quartz uses to draw the junction between connected line segments—miter, round, or bevel
What is Length Line What is The distance, in points, from the origin of the first glyph on a line through the advance width of the last glyph
What is Width Line What is The total width of a line, expressed in user space units
What is List What is In AppleScript, an ordered collection of values
What is View List What is The primary list may by accompanied by additional columns that display secondary attributes about that items in the list. Hierarchies are
What is Literal What is In AppleScript, a value that evaluates to itself
What is Balancing Load What is load among the instances of an application. When multiple instances of an application are running and a new user accesses the application
What is Coordinates Local What is where the origin is set at the upper-left corner of the window’s content region. Compare global coordinates
What is Localization What is including its online help and documentation, for use in one or more regions of the world, in addition to the region for which the original
What is Localize What is See localization
What is Variable Local What is available only in the handler in which it is defined. Variables that are defined within handlers are local unless they are explicitly
What is Lock What is access to a shared resource. The most common use for a lock is in multithreaded programs where multiple threads need access to global data
What is Locked What is available in memory to decrypt the passwords and other secrets protected by the keychain. When an application attempts to retrieve a secret
What is Locking What is A mechanism to ensure that data isn’t modified by more than one user at a time and that data isn’t read as it is being modified
What is Keychain Login What is new login account. The login keychain is automatically unlocked at login if its password matches that of the user’s login account
What is Statement Log What is reports the value of one or more variables to the Event Log pane of a script window, and to the Event Log History window, if it is open
What is Table Lookup What is computations or retrievals of certain values. In image processing, it is used to store precalculated values of an equation instead of
What is Loop What is repeated. (2) In audio, an excerpt of a recording, often a few seconds long or shorter, intended to be played repeatedly as part of a
What is Loopback What is In WebObjects, a mechanism that allows you to open a connection to a computer that does not go over the network
What is Compression Lossless What is information. Common lossless audio compression formats include FLAC (free lossless audio codec) and Apple Lossless . Compare lossy
What is Compression Lossy What is of information. Common lossy audio compression formats include MP3 , AAC , and IMA ADPCM . See also perceptual coding . Compare lossless
What is Loudness What is sound intensity. When SPL (sound pressure level) increases by 10, loudness approximately doubles. Compare gain , volume
What is Lpcm What is and lossless uncompressed audio data format. PCM is usually assumed to mean linear PCM, but sometimes the adjective linear is used to

Definitions for Mac OS developers

Apple library, Mac for software engineers.

Apple Lpcm, Loudness, Lossy Compression, Lossless Compression, Loopback, Loop, Lookup Table, Log Statement, Login Keychain, Locking, Locked, Lock, Local Variable OS Mac.

What is Lpcm, Loudness, Lossy Compression, Lossless Compression for developers.