Important:
This is retired content. This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.
A version of this page is also available for
4/8/2010

This function retrieves the length (in bytes) of a string.

Syntax

HRESULT SysStringByteLen(
  BSTR 
bstr 
);

Parameters

bstr

[in] Unicode string that was previously allocated.It cannot be NULL.

Return Value

Returns an HRESULT value.

Remarks

The returned value can be different from fstrlen( bstr )if the following occurred:

For a BSTRallocated with SysAllocStringLen, SysReAllocStringLen, or SysAllocStringByteLen, this function always retrieves the number of bytes specified in the lenparameter at allocation time.

Passing invalid (and under some circumstances NULL) pointers to this function causes an unexpected termination of the application.

Requirements

Header oleauto.h
Library oleaut32.lib
Windows Embedded CE Windows CE 2.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also