See Also
 Important: |
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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:
- If
BSTRwas allocated with
SysAllocStringLen,
SysReAllocStringLenor
SysAllocStringByteLen
- If the passed-in characters included a null character in the
first
lencharacters
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 |