Partager via

mmioWrite function

  • Article

The mmioWrite function writes a specified number of bytes to a file opened by using the mmioOpen function.

Syntax

LONG mmioWrite(
   HMMIO      hmmio,
   char _huge *pch,
   LONG       cch
);

Parameters

  • hmmio
    File handle of the file.

  • pch
    Pointer to the buffer to be written to the file.

  • cch
    Number of bytes to write to the file.

Return value

Returns the number of bytes actually written. If there is an error writing to the file, the return value is -1.

Remarks

The current file position is incremented by the number of bytes written.

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