This function finds a particular CTOC entry in an open RIFF compound file.

#define INCL_MMIOOS2
#include <os2.h>

HMMCF           hmmcf;         /*  RIFF file handle. */
PMMCTOCENTRY    pmmctocentry;  /*  Pointer to MMCTOCENTRY. */
ULONG           ulFlags;       /*  Flags. */
ULONG           rc;            /*  Return codes. */

rc = mmioCFFindEntry(hmmcf, pmmctocentry,
       ulFlags);