Incorrect function signature for IPersistFolder3.InitializeEx

[Arik-Playground]

Describe the bug
The function declaration for InitializeEx in the IPersistFolder3 interface is incorrect; ppfti should be nullable according to the msdn

What code is involved
here

Expected behavior
The line should probably be
void InitializeEx([In] IBindCtx pbc, [In] PIDL pidlRoot, [In] PERSIST_FOLDER_TARGET_INFO? ppfti);

[dahall]

Good catch. I have corrected the syntax to

void InitializeEx([In] IBindCtx pbc, [In] PIDL pidlRoot, [In, Optional] IntPtr ppfti);

since nullable types (e.g. PERSIST_FOLDER_TARGET_INFO?) cannot be marshaled. I added an overload that still supports the old syntax and handles converting the PERSIST_FOLDER_TARGET_INFO value to a pointer.