[PATCH] comctl32: Add RegisterClassNameW stub

[Nikolay Sivov]

On 22.10.2017 2:53, Fabian Maurer wrote:
> On Sonntag, 22. Oktober 2017 01:20:43 CEST Nikolay Sivov wrote:
>> I don't think you need separate export to register classes. As a test
>> create your own dll with such export, and see if it's called from test
>> exe when some referenced class name is requested, as far as I remember
>> this was only used in early versions.
> 
> Well, I don't know if it's currently still used on windows, but according to 
> my tests it still works. You can use that function to make comctl32 register 
> one of its classes, for example "Combobox" as "6.0.7601.17514!Combobox".
> 
> The other ways I found to make comctl32 register its classes (all of them at 
> once) is to call GetClassInfoExW or CreateWindowExW with windows class 
> WC_BUTTONW/WC_COMBOBOXW/etc. Don't know that internally works though, just 
> loading the library is not enough for it to register its classes, somehow 
> comctl32 needs to be told when to register its classes.
> Is it a bad idea to use this function for this purpose? AFAIK it's introduced 
> after XP, and is used to register the redirected classes. Correct me if I'm 
> wrong though.

You can probably register them all on load.

> 
> Honestly, I'm not sure if they want custom dlls to export such a function, but 
> it might be possible it's used in comctl32. I'll try to make an own side-by-
> side dll to test that.
> 
> Regards,
> Fabian Maurer
>