runtime loop observer loop what is
Runtime, Run Loop Observer, Run Loop Object, Run Loop Mode, Run Loop, Rsa Encryption, Rpc, Row.

Apple Mac OS developers glossary letter R

  • What is RUID What is Real user ID. The UID inherited from the user or process that executes a process
  • What is rule What is A set of attributes used to set security policies for applications and for the system. See also policy database
  • What is run What is A sequence of glyphs that are contiguous in memory and share a set of common attributes. See also font run
  • What is RSS What is Really Simple Syndication. A lightweight XML format used for displaying changes frequently updated websites
  • What is radial gradient What is axis between two defined ends, which typically are both circles. Points share the same color value if they lie on the circumference of a
  • What is radio button What is A control for one of a set of mutually exclusive, but related, choices
  • What is RAM What is Random-access memory. Memory that a microprocessor can either read or write to
  • What is Randomization Services What is AniOS API that produces cryptographically secure pseudorandom number s
  • What is range reference form What is In AppleScript, a reference form that specifies a series of objects of the same class in the same container
  • What is ranked searching What is See relevance-based result
  • What is raster graphics What is example, by scanning a photo) as a set of samples of a given space. A raster is a grid of x-axis (horizontal) and y-axis (vertical
  • What is rasterization What is In image processing, the process of converting vertex and pixel data to fragments, each of which corresponds to a pixel in the framebuffer
  • What is rate What is the pace at which time passes for a time base. A time base’s rate is multiplied by the time scale to obtain the number of time units that
  • What is rating indicator What is stars that indicates the relative ranking of an object (such as a song) based on a criterion such as popularity
  • What is raw format What is double angle brackets («, »). AppleScript uses raw format when it cannot find a script term in any available dictionary, or cannot display
  • What is raw row fetching What is In WebObjects, a possible option in a fetch specification that retrieves database rows without forming enterprise objects from those rows
  • What is real number What is A number that can include a decimal fraction
  • What is real position What is axis for the origin of each character or glyph in a line of text given in coordinates relative to the preceding character or glyph
  • What is real time What is guarantee of a certain capability within a specified time constraint, thus permitting predictable, time-critical behavior. If the user
  • What is real-time performance What is Performance characterized by guaranteed worst-case response times
  • What is realm What is In security, a subset of a large network served by its own Kerberos authentication server and ticket-granting server
  • What is receiver What is The object in an application designated to receive an AppleScript command
  • What is receive rights What is messages on a Mach port. Only one task at a time can have receive rights for any one port. Compare send rights
  • What is receivers specifier What is In a script command object, the object specifier that specifies the objects in the application that should receive an command
  • What is recognized text What is In Ink Services, Ink words processed by the recognition system
  • What is recognizer What is The algorithmic component of Ink Services that identifies written text and gestures
  • What is record What is values that describes a single instance of an entity. (2) In AppleScript, an unordered collection of properties, identified by unique
  • What is recordable application What is uses Apple events to report user actions for recording purposes. When recording is turned on, Script Editor creates statements
  • What is recording audio queue What is See audio queue
  • What is recursive handler What is A handler that calls itself
  • What is recursive lock What is A lock that can be locked multiple times by the same thread
  • What is reentrant What is interleaved requests for service nearly simultaneously. For example, a reentrant function can begin responding to one call, be interrupted
  • What is refactoring What is for the purpose of improving its readability and maintainability while retaining the program’s functionality and behavior. See also
  • What is reference What is statement that identifies an object. Constructions such as first rectangle and document "My Notes" are references. Cocoa
  • What is reference constant What is An arbitrary data item available for use by a program to convey information for its own purposes in an operation or data structure
  • What is reference distance What is parameter that specifies the real or apparent distance of an audio source from the listener beyond which the source’s level attenuates
  • What is reference form What is identifying an object or group of objects in an application or other container—that is, the syntax for constructing an object specifier
  • What is referential integrity What is In relational databases, the rules governing the consistency of relationships
  • What is reflexive relationship What is within the same entity; the relationship’s source join attribute and destination join attribute are in the same entity
  • What is register What is Services, copying its binding information into the Launch Services database and making it available for opening documents and URLs
  • What is relational database What is relational model, which uses the discipline of Entity-Relationship modeling and the data design standards called normal forms
  • What is relationship What is two entities that’s based on attributes of the entities. For example, the Department and Employee entities can have a relationship based
  • What is relationship key What is In relational databases, a key (an attribute) on which a relationship joins
  • What is relative object specifier What is that does not include enough information to identify an object or objects uniquely. When AppleScript encounters a partial object specifier
  • What is relative position What is character or glyph in a line of text given in coordinates relative to the preceding character or glyph. Compare absolute position
  • What is relative reference form What is specifies an object or location by describing its position in relation to another object, known as the base, in the same container
  • What is release What is of an object. When an object’s reference count reaches zero, it is freed. When your code no longer needs to reference a retained object, it
  • What is relevance-based result What is See relevance-based search
  • What is ruby text What is annotations or indicate pronunciation for Asian languages. Ruby text is displayed using a smaller font size than the text it annotates
  • What is relevance-based search What is relevance rating for each document matching a query. In general, relevance ratings may be normalized to 100%, or nonnormalized. Search Kit
  • What is relevance indicator What is A control that indicates the relative ranking of search results—the longer the bar, the more relevant the item is to the search criteria
  • What is relocatable component What is A product component, such as an application binary or a plug-in, that the user may move after it has been installed
  • What is relocation What is The ability of users to change the installation location of a package before an installation
  • What is remote install What is installation process. An administrator uses Apple Remote Desktop to install a package onto a set of client computers
  • What is remote procedure call What is See RPC
  • What is render What is specification for signal processing to some audio data. An audio unit typically contains a rendering method to obtain audio data and
  • What is renderbuffer What is a 2D pixel image, used for generalized offscreen rendering, as defined in the OpenGL specification for the GL_EXT_framebuffer_object
  • What is renderer What is or software only, that OpenGL uses to create an image from a view and a model. The hardware portion of a renderer is associated with a
  • What is rendering context What is In OpenGL, a container for state information
  • What is rendering intent What is the source color space to those that are within the gamut of the destination color space of a graphics context
  • What is rendering pipeline What is The order of operations used by OpenGL to transform pixel and vertex data to an image in the framebuffer
  • What is render-to-texture What is In OpenGL, an operation that draws content directly to a texture target
  • What is repeat statement What is that contains a series of statements to be repeated and, in most cases, instructions that specify when the repetition stops
  • What is reply port What is A Mach port associated with a thread that is used in remote procedure calls
  • What is repository What is A directory tree or database that contains the files managed by a source control system
  • What is repository configuration What is A set of data that tells Xcode how to use a particular source-control client tool to access a specific repository
  • What is request What is Transfer Protocol (HTTP) sent from the user’s web browser to a web server that asks for a resource such as a webpage. See also response
  • What is request-response loop What is The main loop of a WebObjects application, which receives a request, responds to it, and awaits the next request
  • What is required events What is that present a graphical user interface should be able to respond to. These events can be sent by the Mac OS, as well as by other
  • What is required parameter What is In AppleScript, a parameter that must be included for a command to be successful
  • What is resampling What is samples of a digitized signal at a rate different from that of the original recording. Specific types of resampling include downsampling
  • What is resampling filter What is A function used to determine new pixel values for an image that has its dimensions changed somehow
  • What is Research Assistant What is condensed view of the API reference and links to related documentation for the selected system or build setting
  • What is reserved word What is A word that is part of the AppleScript language
  • What is reset What is unit to its just-initialized state. (2) For codecs, to clear the codec’s input buffer and return the codec to its just-initialized state
  • What is resize control What is windows that users can drag to adjust the size of the window. It is not present if the window’s contents cannot vary in size
  • What is resolution What is of color) contained on a display, expressed in terms of the number of pixels on the horizontal axis and the number on the vertical axis
  • What is resolution independence What is abstract space such that drawing is the same size when rendered for raster devices of any native resolution
  • What is resource What is especially by applications. Resources include images, sounds, icons, localized strings, archived user interface objects, and various other
  • What is resource fork What is held an application’s resources. Use of the resource fork is discouraged in OS X, but you can store resources in the data fork
  • What is responder chain What is The set of objects responsible for handling events in a window
  • What is response What is the Hypertext Transfer Protocol (HTTP) sent from the web server to the user’s web browser that contains the resource specified by the
  • What is result What is In AppleScript, a value generated when a command is executed or an expression evaluated
  • What is retain What is of an object. An object with a positive reference count is not freed. (A newly created object has a reference count of one.) Drivers can
  • What is retained window What is screen pixel values. Images are rendered into the buffer for any portions of the window that aren’t visible onscreen
  • What is return statement What is In AppleScript, a statement that exits a handler and optionally returns a specified value
  • What is reusable component What is In WebObjects, a component that can be nested within other components and acts like a dynamic element
  • What is reverb What is See reverberation
  • What is reverberation What is cumulative addition of multiple sound reflections. Apple supplies the matrix reverb audio unit to simulate reverberation using DSP (digital
  • What is reverse multiplexing What is See deinterleaving
  • What is revision number What is A value that indicates a particular version of a project that’s been committed to the repository, also known as a version number
  • What is RGBA What is Red, green, blue, and alpha color components
  • What is RGID What is Real group ID. A group ID that is inherited from the user or process that executes a process. See also GID
  • What is RIFF What is Resource Interchange File Format. A minor variation on IFF that uses little-endian integers
  • What is right What is In security, a named privilege. The Security Server authorizes rights for a user to perform a privileged operation
  • What is right-side bearing What is The white space on the right side of the glyph; this value may or may not be equal to the value of the left-side bearing
  • What is RMS What is of a time-varying value, such as voltage, current, or sound pressure. An RMS value is derived as the square root of the mean of the
  • What is ROI What is image data buffer that is being operated upon by a function. It is not uncommon to allocate a large pixel buffer to hold several images and
  • What is role What is relation to a document type. There are five roles: Editor (reads and modifies), Viewer (can only read), Print (can only print), Shell
  • What is role mask What is roles that an application should claim with respect to a given item in order to be considered a candidate for opening that item
  • What is ROM What is Read-only memory. Memory that cannot be written to
  • What is Roman baseline What is The baseline used in most Roman scripts and in Arabic and Hebrew
  • What is Roman character set What is writing system. Roman character sets include the Standard Roman character set and the ASCII character set
  • What is Roman keyboard script What is A keyboard script that uses the Roman character set
  • What is root What is privileges. Also called the superuser. (2) The top directory in a BSD-style directory hierarchy. Written as a slash (/), it is the first
  • What is root atom What is The largest atom container in a hierarchy, with atom type 'sean'
  • What is root certificate What is without recourse to another certificate. Rather than being signed by a further certification authority (CA), a root certificate is verified
  • What is root certification authority What is The owner of the root certificate
  • What is root control What is An invisible control within which all other controls for window are embedded
  • What is root macro patch What is a composition; the evaluation of a composition begins at the root macro patch. All patches are nested, at one level or another, within the
  • What is root file mechanizm What is The primary file system off which a computer boots, so named because it includes the root node of the file-system tree
  • What is root user What is 0. A process running with an EUID of 0 is said to be running as root. The root user owns many of the primary system processes and has
  • What is root word What is See stem
  • What is rotation What is In image processing, an operation that moves the coordinate space the specified angle
  • What is round button What is A circular push button
  • What is routine What is returns a value. A routine can be used for synchronous or asynchronous operations. See also simpleroutine
  • What is row What is In a relational database, the dimension of a table that groups attributes into records
  • What is RPC What is IPC that appears (to the caller) as an ordinary function call. In Mach, RPCs are implemented using MIG-generated interface libraries and
  • What is RSA encryption What is named for its inventors: Ron Rivest, Adi Shamir, and Leonard Adleman. The RSA algorithm takes two large prime numbers, finds their product
  • What is run loop What is monitoring in OS X. A run loop registers input sources such as sockets, Mach ports, and pipes for a thread; it also enables the delivery of
  • What is run loop mode What is sources, and run loop observers associated with a particular name. When run in a specific mode, a run loop monitors only the sources and
  • What is run loop object What is CFRunLoopRef opaque type. These objects provide the interface for implementing an event-processing loop in a thread
  • What is run loop observer What is A recipient of notifications during various phases of a run loop’s execution
  • What is runtime What is program is being executed, as opposed to compile time or load time. Can also refer to the runtime environment, which designates the set of

Definitions for Mac OS developers

Apple library, Mac for software engineers.

Apple Runtime, Run Loop Observer, Run Loop Object, Run Loop Mode, Run Loop, Rsa Encryption, Rpc, Row, Routine, Round Button, Rotation, Root Word, Root User, Root OS Mac.

What is Runtime, Run Loop Observer, Run Loop Object, Run Loop Mode for developers.