OK, so I couldn't really think of an apropos title that summarizes this. The IPrintPipelinePropertyBag interface has the method AddProperty which aptly enough "adds a property to a property bag." ...

When maintaining a COM interface should an empty BSTR be treated the same way as NULL? In other words should these two function calls produce the same result? // Empty BSTR CComBSTR empty(L""); ...

I have a BSTR object that I would like to convert to copy to a wchar__t object. The tricky thing is the length of the BSTR object could be anywhere from a few kilobytes to a few hundred kilobytes. ...