Glossary

CAD: Computer-aided design.
CASE: Computer-aided software engineering.
Category: Attributes of a pattern that indicate whether the application wants to handle requests that match the pattern or only observe the requests.
Classing Engine (CE): Identifies the characteristics of desktop objects; that is, it stores attributes such as print method, icons, and file opening commands of desktop objects.
Classing Engine tables: The types database read by the OpenWindows Classing Engine.
contexts: Associates arbitrary pairs (that is, <name. value> pairs) with ToolTalk messages and patterns.
dynamic message patterns: Provides message pattern information while your application is running.
fail a request: Inform a sending application that the requested operation cannot be performed.
fd: File descriptor.
file: A container for data that is of interest to applications.
libtt: The ToolTalk application programming interface (API) library.
handle a message: To perform the operation requested by the sending application; to send a ToolTalk reply to a request.
initial session: The ToolTalk session in which the application was started.
mark: An integer that represents a location on the API stack.
message: A structure that the ToolTalk service delivers to processes. A ToolTalk message consists of an operation name, a vector of type arguments, a status value or string pair, and ancillary addressing information.
message callback: A client function. The ToolTalk service invokes this function to report information about the specified message back to the sending application; for example, the message failed or the message caused a tool to start.
message pattern: Defines the information your application wants to receive.
message protocol: A message protocol is a set of ToolTalk messages that describe operations the applications agree to perform.
notice: A notice is informational, a way for an application to announce an event.
object content: Object content is managed by the application that creates or manages the object and is typically a piece, or pieces, of an ordinary file: a paragraph, a source code function, or a range of spreadsheet cells.
object files: Files that contain object information. Applications can query for objects in a file and perform operations on batches of objects.
object-oriented messages: Messages addressed to objects managed by applications.
object specification (spec): An object specification (known as a spec) contains standard properties such as the type of object, the name of the file in which the object contents are located, and the object owner.
object type (otype): The object type (otype) for your application provides addressing information that the ToolTalk service uses when delivering object-oriented messages.


	Glossary CAD Computer-aided design. CASE Computer-aided software engineering. Category Attributes of a pattern that indicate whether the application wants to handle requests that match the pattern or only observe the requests. Classing Engine (CE) Identifies the characteristics of desktop objects; that is, it stores attributes such as print method, icons, and file opening commands of desktop objects. Classing Engine tables The types database read by the OpenWindows Classing Engine. contexts Associates arbitrary pairs (that is, <name. value> pairs) with ToolTalk messages and patterns. dynamic message patterns Provides message pattern information while your application is running. fail a request Inform a sending application that the requested operation cannot be performed. fd File descriptor. file A container for data that is of interest to applications. libtt The ToolTalk application programming interface (API) library. handle a message To perform the operation requested by the sending application; to send a ToolTalk reply to a request. initial session The ToolTalk session in which the application was started. mark An integer that represents a location on the API stack. message A structure that the ToolTalk service delivers to processes. A ToolTalk message consists of an operation name, a vector of type arguments, a status value or string pair, and ancillary addressing information. message callback A client function. The ToolTalk service invokes this function to report information about the specified message back to the sending application; for example, the message failed or the message caused a tool to start. message pattern Defines the information your application wants to receive. message protocol A message protocol is a set of ToolTalk messages that describe operations the applications agree to perform. notice A notice is informational, a way for an application to announce an event. object content Object content is managed by the application that creates or manages the object and is typically a piece, or pieces, of an ordinary file: a paragraph, a source code function, or a range of spreadsheet cells. object files Files that contain object information. Applications can query for objects in a file and perform operations on batches of objects. object-oriented messages Messages addressed to objects managed by applications. object specification (spec) An object specification (known as a spec) contains standard properties such as the type of object, the name of the file in which the object contents are located, and the object owner. object type (otype) The object type (otype) for your application provides addressing information that the ToolTalk service uses when delivering object-oriented messages.