operator + method
Concatenate two BSTR objects and returns a newly-allocated object with the results.
Implementation
BSTR operator +(BSTR other) {
final pbstrResult = calloc<Pointer<Utf16>>();
VarBstrCat(ptr, other.ptr, pbstrResult.cast());
final result = BSTR._(pbstrResult.value);
calloc.free(pbstrResult);
return result;
}