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14.2 CLIM Operators for Output Recording

The purpose of output recording is to capture the output done by an application onto a stream. The objects used to capture output are called output records and output record elements. The following classes and predicates correspond to the objects used in output recording.

output-record [Protocol Class]	

Summary: The protocol class used to indicate that an object is an output record. A subclass of bounding-rectangle , output records obey the bounding rectangle protocol. If you want to create a new class that behaves like an output record, it should be a subclass of output-record . Subclasses of output-record must obey the output-record protocol.

All output records are mutable.

output-record-p [Function]	

Arguments: object

Summary: Returns t if object is an output record; otherwise, it returns nil .

displayed-output-record [Protocol Class]	

Summary: The protocol class that is used to indicate that an object is a displayed output record, that is, an object that represents a visible piece of output on some output stream. This is a subclass of bounding-rectangle . If you want to create a new class that behaves like a displayed output record, it should be a subclass of displayed-output-record . Subclasses of displayed-output-record must obey the displayed output record protocol.

All displayed output records are mutable.

displayed-output-record-p [Function]	

Arguments: object

Summary: Returns t if object is a displayed output record; otherwise, it returns nil .

:x-position

:y-position

:parent

Summary: All subclasses of either output-record or displayed-output-record must handle these three initargs, which are used to specify, respectively, the x and y position of the output record, and the parent of the output record.

:size

Summary: All subclasses of output-record must handle the :size initarg, which specifies how much room should be left for child output records (if, for example, the children are stored in a vector). :size may be ignored, provided that the resulting output record is able to store the specified number of child output records.

14.2.1 The Basic Output Record Protocol

14.2.2 The Output Record "Database" Protocol

14.2.3 Types of Output Records

14.2.4 Output Recording Streams


CommonLisp Interface Manager 2.0 User's Guide - 8 Aug 2003

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