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mmioSetInfo function

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.

Syntax


MMRESULT mmioSetInfo(
  HMMIO hmmio,
  LPMMIOINFO lpmmioinfo,
  UINT wFlags
);

Parameters

hmmio

File handle of the file.

lpmmioinfo

Pointer to an MMIOINFO structure filled with information by the mmioGetInfo function.

wFlags

Reserved; must be zero.

Return value

Returns zero if successful or an error otherwise.

Remarks

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.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Mmsystem.h (include Windows.h)

Library

Winmm.lib

DLL

Winmm.dll

 

 

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