This structure contains information about a chunk in a RIFF file.
typedef struct _MMCKINFO {
FOURCC ckid;
DWORD cksize;
FOURCC fccType;
DWORD dwDataOffset;
DWORD dwFlags;
} MMCKINFO;
The MMCKINFO structure has the following fields:
ckid
Specifies the chunk ID of the chunk.
cksize
Specifies the size of the data field of the chunk. The size of the data field does not include the four-byte chunk ID, the four-byte chunk size, or the optional pad byte at the end of the data field.
fccType
Specifies the form type for “RIFF” chunks or the list type for “LIST” chunks.
dwDataOffset
Specifies the file offset of the beginning of the chunk's data field, relative to the beginning of the file.
dwFlags
Specifies flags giving additional information about the chunk. Contains zero or more of the following flags:
MMIO_DIRTY
Indicates that the length of the chunk may have changed and should be updated by mmioAscend. This flag is set when a chunk is created by mmioCreateChunk.