Closes an object opened with dlopen.
#include <dlfcn.h> int dlclose( void *handle);
(IN) Points to the handle for the module whose symbols are no longer required.
If successful, returns 0. Otherwise, returns a nonzero value and sets a value in dlerror.
The dlclose function informs the system that the object referenced by handle is no longer needed by the application.
For sample code, see DLFcn.c.