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On Mac OS X, a framework is a structured directory containing one or more shared libraries along with metadata such as C and Objective-C header files. In some cases, frameworks may also contain additional items such as executables.
Loading a framework means opening the shared libraries and
processing any declarations so that Clozure CL can subsequently call
its entry points and use its data structures. Clozure CL provides the
function OBJC:LOAD-FRAMEWORK
for this
purpose.
(OBJC:LOAD-FRAMEWORK framework-name interface-dir)
framework-name
is a string that names the
framework (for example, "Foundation", or "Cocoa"),
and interface-dir
is a keyword that names the
set of interface databases associated with the named framework
(for example, :foundation
,
or :cocoa
).
Assuming that interface databases for the named frameworks
exist on the standard search
path, OBJC:LOAD-FRAMEWORK
finds and initializes
the framework bundle by searching OS X's standard framework search
paths. Loading the named framework may create new Objective-C
classes and methods, add foreign type descriptions and entry
points, and adjust Clozure CL's dispatch functions.
If interface databases don't exist for a framework you want to use, you will need to create them. For more information about creating interface databases, see Creating new interface directories.
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