Re: Fix various function prototypes

[Robert Shearman]

Vincent Béron wrote:
> SHCoCreateInstance returns void, not HRESULT.
> Some functions had a different prototype than their declaration.
>
> Changelog:
> Fix various function prototypes.

Some of these are wrong if we want binary compatibility with Windows 
64-bit because e.g.:
sizeof(unsigned long) on linux != sizeof(unsigned long) on Windows

If a parameter to a function is "unsigned long" then we will have to 
change it to "ULONG" instead.

Rob