mmioDescend Parameter - usFlags
usFlags (USHORT) - input
Contains 0 or one of the following flags. If none
of these flags are specified, mmioDescend descends into the chunk that starts
at the current file position.
MMIO_FINDCHUNK
Search for a chunk with a specific
ID. The ckid field of MMCKINFO
passed in on the pckinfo parameter should contain the ID of the
chunk to search for when mmioDescend is called.
MMIO_FINDRIFF
Search for a chunk with an ID of FOURCC_RIFF and
with a specific form type. The fccType field of MMCKINFO
passed in on the pckinfo parameter contains the form type of
the RIFF chunk to search for when mmioDescend is called.
MMIO_FINDLIST
Search for a chunk with an ID of FOURCC_LIST and
with a specific list type. The fccType field of MMCKINFO
passed in on the pckinfo parameter contains the list type of
the LIST chunk to search for when mmioDescend is called.
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