This function deletes the library hlibLibhandle, which is previously loaded by the WinLoadLibrary function.

#define INCL_WINLOAD /* Or use INCL_WIN, INCL_PM, */
#include <os2.h>

HAB     hab;            /*  Anchor-block handle. */
HLIB    hlibLibhandle;  /*  Library handle to be deleted. */
BOOL    rc;             /*  Library-deleted indicator. */

rc = WinDeleteLibrary(hab, hlibLibhandle);