Difference between revisions of "SET LIBRARY"
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<code lang="recital"> | <code lang="recital"> | ||
// Open Samples.so API procedure library | // Open Samples.so API procedure library | ||
| − | set library to | + | set library to samples.so |
// Open pdf.so procedure library without closing active libraries | // Open pdf.so procedure library without closing active libraries | ||
set library to pdf.so additive | set library to pdf.so additive | ||
Revision as of 14:30, 16 April 2009
Class
Environment
Purpose
Load an API library file built with the Recital SDK
Syntax
SET LIBRARY TO [<library filename> | (<expC>) [ADDITIVE]]
See Also
CLOSE PROCEDURE, DISPLAY PROCEDURE, DO, FUNCTION, LINK, LIST PROCEDURE, PARAMETERS, PROCEDURE, RELEASE LIBRARY, REQUIRE(), REQUIRE_ONCE()
Description
The SET LIBRARY TO <library filename> command opens the specified API procedure library file, scans the contents of it, and records the names and positions of the procedures defined within it. The filename can be substituted with a <expC>, enclosed in round brackets, which returns a valid filename. You can place as many procedures as you want in an API procedure library file. By default, library files are loaded from the directory defined in the DB_LIBDIR Registry setting / environment variable. To load a library that is not in the current directory or the DB_LIBDIR directory, the full path must be included.
If the optional ADDITIVE keyword is specified then any API procedures that are already open are left open and the new API procedure library is added. The SET LIBRARY TO command, without any filename specified, closes all active API procedure library files. A closed library file discards any knowledge of where the procedures within reside. The RELEASE LIBRARY <library filename> command can be used to close an individual API library file.
The SET LIBRARY and RELEASE LIBRARY commands only affect API procedure library files, not Recital/4GL procedure library files: these are handled by the SET PROCEDURE and CLOSE PROCEDURE commands and the REQUIRE() and REQUIRE_ONCE() functions.
The active API procedures and functions can be listed with the LIST or DISPLAY PROCEDURE commands.
For full details on using the Recital SDK, please see the SDK documentation.
Example
// Open Samples.so API procedure library set library to samples.so // Open pdf.so procedure library without closing active libraries set library to pdf.so additive // Close pdf.so API procedure library release library pdf.so // Close all active API procedure library files set library to
Products
Recital Database Server, Recital Mirage Server, Recital Terminal Developer
