This data structure is used to associate a compressor or decompressor with an MMIO handle of an open file. This structure is used with the mmioSet function or the MMIOM_SET message.
typedef struct _CODECASSOC {
PVOID pCodecOpen; /* Pointer to CODECOPEN. */
PCODECINIFILEINFO pCODECIniFileInfo; /* Pointer to structure. */
} CODECASSOC;
typedef CODECASSOC * PCODECASSOC ;