SysStringLen function

Returns the length of a BSTR.

Syntax

UINT SysStringLen(
  _In_opt_ BSTR bstr
);

Parameters

bstr [in, optional]

A previously allocated string.

Return value

The number of characters in bstr, not including the terminating null character. If bstr is null the return value is zero.

Remarks

The returned value may be different from strlen(bstr) if the BSTR contains embedded Null characters. This function always returns the number of characters specified in the cch parameter of the SysAllocStringLen function used to allocate the BSTR.

Requirements

See also

String Manipulation Functions