DosReadAsync

#define INCL_DOSFILEMGR

USHORT  rc = DosReadAsync(FileHandle, RamSemaphore, ReturnCode, BufferArea,
                             BufferLength, BytesRead);

HFILE            FileHandle;    /* File handle */
PULONG           RamSemaphore;  /* Ram semaphore */
PUSHORT          ReturnCode;    /* I/O operation return code (returned) */
PVOID            BufferArea;    /* User buffer (returned) */
USHORT           BufferLength;  /* Buffer length */
PUSHORT          BytesRead;     /* Bytes read (returned) */

USHORT           rc;            /* return code */