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_lwrite info  Overview  Group

The _lwrite function writes data to the specified file. This function is provided for compatibility with 16-bit versions of Windows. Win32-based applications should use the WriteFile function.

UINT _lwrite(

    HFILE hFile,

// handle to file

    LPCSTR lpBuffer,

// pointer to buffer for data to be written

    UINT uBytes 

// number of bytes to write

   );

Parameters

hFile
Identifies the specified file.
lpBuffer
Pointer to a buffer that contains the data to write to the file.
uBytes
Specifies the number of bytes to be written to the file.

Return Values

If the function succeeds, the return value indicates the number of bytes actually written to the file.

If the function fails, the return value is HFILE_ERROR. To get extended error information, call GetLastError.

If you are attempting to write to a floppy drive that does not have a floppy disk, the system displays a message box prompting the user to retry the operation. To prevent the system from displaying this message box, call the SetErrorMode function with SEM_NOOPENFILEERRORBOX.

See Also

_lread, SetErrorMode, WriteFile 


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