[PATCH 5/5] qedit: Implement IAMTimelineObj_GetTimelineNoRef and add tests.

[Nikolay Sivov]

On 26.04.2016 7:57, Alex Henrie wrote:
> 2016-04-25 22:21 GMT-06:00 Nikolay Sivov <bunglehead at gmail.com>:
>> On 26.04.2016 6:10, Alex Henrie wrote:
>>>  static HRESULT WINAPI TimelineObj_GetTimelineNoRef(IAMTimelineObj *iface, IAMTimeline **timeline)
>>>  {
>>> +    /* MSDN says that this function is "not supported" */
>>>      TimelineObjImpl *This = impl_from_IAMTimelineObj(iface);
>>> -    FIXME("(%p)->(%p): not implemented!\n", This, timeline);
>>> -    return E_NOTIMPL;
>>> +    TRACE("(%p)->(%p)\n", This, timeline);
>>> +    if (!timeline) return E_POINTER;
>>> +    return E_NOINTERFACE;
>>>  }
>>
>> This looks like a call to QI, according to your tests.
> 
> It looks that way, but which interface would it be querying? The tests
> show that an IAMTimelineObj cannot double as an IAMTimeline, nor is
> the function supposed to return the IAMTimeline that was used to
> create the IAMTimelineObj. My best guess is that Microsoft never
> bothered implementing this function properly and so whatever
> implementation they have always winds up returning E_NOINTERFACE.

Yes, return type is IAMTimeline, so I was suggesting a shortcut doing
same thing in one line IAMTimelineObj_QueryInterface(iface,
&IID_IAMTimeline, ...). This should cover for setting out pointer to
NULL, returning E_NOINTERFACE, and probably handling NULL case too,
though it's not a standard QI behavior. None of that is actually
important, what you did is fine, take it as a suggestion, or don't.

> 
> -Alex
>