The DlnCloseHandle() function closes the handle to an opened DLN-series adapter (stream).
DlnCloseHandle()
DLN_RESULT DlnCloseHandle( HDLN handle );
A handle to the DLN-series adapter.
The function successfully closed the handle to an opened DLN adapter.
The DlnCloseHandle() function is defined in the dln_generic.h file.
dln_generic.h