mmioOpen.md

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Function name : mmioOpen

Group: Windows Multimedia - Library: winmm

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The mmioOpen function opens a file for unbuffered or buffered I/O. The file can be a standard file, a memory file, or an element of a custom storage system.

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Code examples:

WAV file player
Class for sound recording
Changing pitch and speed of a wave file
Adding supplementary data to AVI files
Playing WAV sounds simultaneously

Declaration:

HMMIO mmioOpen(
  LPSTR szFilename,
  LPMMIOINFO lpmmioinfo,
  DWORD dwOpenFlags
);  

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FoxPro declaration:

DECLARE INTEGER mmioOpen IN winmm;
	STRING   szFilename,;
	STRING @ lpmmioinfo,;
	INTEGER  dwOpenFlags
  

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Parameters:

szFilename Pointer to a string containing the filename of the file to open.

lpmmioinfo Pointer to an MMIOINFO structure containing extra parameters used by mmioOpen.

dwOpenFlags Flags for the open operation.

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Return value:

Returns a handle of the opened file. If the file cannot be opened, the return value is NULL.

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Comments:

The handle returned by mmioOpen is not a standard file handle. Do not use it with any file I/O functions other than multimedia file I/O functions.

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