[PATCH 4/5] d2d1: Add the ID2D1Bitmap interface.

[Henri Verbeet]

On 14 May 2014 08:26, Nikolay Sivov <bunglehead at gmail.com> wrote:
> I don't think it makes sense to match msdn here regarding [optional]
> attribute, and that's why:
>
> - 'optional' without 'defaultvalue' has no effect on headers, as far as I
> can see;
> - you can't mix 'optional' with required arguments like that, midl will
> refuse to process such idl,
>   optional arguments should be at the end of arguments list only;
I didn't try processing this with midl myself, but are you quite sure
about that? The d2d1.h in the PSDK has these annotated with
"_In_opt_", and presumably it's generated with midl.