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The mmioSetInfo function updates the information retrieved by the mmioGetInfo function about a file opened by using the mmioOpen function. Use this function to terminate direct buffer access of a file opened for buffered I/O.
MMRESULT mmioSetInfo(
HMMIO hmmio, | |
LPMMIOINFO lpmmioinfo, | |
UINT wFlags | |
); |
hmmio
File handle of the file.
lpmmioinfo
Address of an MMIOINFO structure filled with information by the mmioGetInfo function.
wFlags
Reserved; must be zero.
Returns zero if successful or an error otherwise.
If you have written to the file I/O buffer, set the MMIO_DIRTY flag in the dwFlags member of the MMIOINFO structure before calling mmioSetInfo to terminate direct buffer access. Otherwise, the buffer will not get flushed to disk.