shdocvw: Add ITaskbarList2 Interface

[André Hentschel]

Am 20.06.2011 17:50, schrieb Henri Verbeet:
> 2011/6/18 André Hentschel <nerv at dawncrow.de>:
>> -static HRESULT STDMETHODCALLTYPE taskbar_list_QueryInterface(ITaskbarList *iface, REFIID riid, void **object)
>> +static HRESULT STDMETHODCALLTYPE taskbar_list_QueryInterface(ITaskbarList2 *iface, REFIID riid, LPVOID *ppv)
>>  {
>> -    TRACE("iface %p, riid %s, object %p\n", iface, debugstr_guid(riid), object);
>> +    struct taskbar_list *This = impl_from_ITaskbarList2(iface);
>> +
>> +    *ppv = NULL;
>> +
>> +    if(IsEqualGUID(&IID_IUnknown, riid)) {
>> +        TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
>> +        *ppv = &This->ITaskbarList2_iface;
>> +    }else if(IsEqualGUID(&IID_ITaskbarList, riid)) {
>> +        TRACE("(%p)->(IID_ITaskbarList %p)\n", This, ppv);
>> +        *ppv = &This->ITaskbarList2_iface;
>> +    }else if(IsEqualGUID(&IID_ITaskbarList2, riid)) {
>> +        TRACE("(%p)->(IID_ITaskbarList2 %p)\n", This, ppv);
>> +        *ppv = &This->ITaskbarList2_iface;
>> +    }
>>
>> -    if (IsEqualGUID(riid, &IID_ITaskbarList)
>> -            || IsEqualGUID(riid, &IID_IUnknown))
>> -    {
>> -        IUnknown_AddRef(iface);
>> -        *object = iface;
>> +    if(*ppv) {
>> +        IUnknown_AddRef((IUnknown*)*ppv);
>>         return S_OK;
>>     }
>>
>> -    WARN("%s not implemented, returning E_NOINTERFACE\n", debugstr_guid(riid));
>> -
>> -    *object = NULL;
>> +    WARN("(%p)->(%s %p) interface not supported\n", This, debugstr_guid(riid), ppv);
>>     return E_NOINTERFACE;
>>  }
>>
> I'm not sure that's really an improvement.
> 
> 

I thought i use the way the webbrowser queryinterface in the same dll is implemented.
Of course i can change less here.

-- 

Best Regards, André Hentschel