August 2011
Intermediate to advanced
552 pages
23h 48m
English
Content preview from Advanced Mac OS X Programming: The Big Nerd Ranch GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Shared Libraries and dlopen
If you don’t want to use (or can’t use) NSBundle for loading plug-ins, you can load a shared library instead. Loading a shared library does not give you ready access to resources like NSBundle does.
Mac OS X has a choice of API for manually loading bundles and shared libraries. There is the NSModule API, which includes functions such as NSCreateObjectFileImageFromFile(). Prior editions of this book described this mechanism. It has been deprecated in Mac OS X 10.5, and the documentation manpages have been removed. You can find information in the header located at /usr/include/mach-o/dyld.h.
dlopen()
dlopen() is used to open a shared library or a bundle at a given path:
void* dlopen (const char* path, int mode);dlopen() ...
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