WINE's way to find out about MS headers?

[Christoph Frick]

hiho

after reading the SetProperty documentation on MSDN about the direct
input interface, i found out about four "defines" that are not yet
included in the dinput.h of WINE.

#define DIPROP_APPDATA       MAKEDIPROP(?)
#define DIPROP_CPOINTS       MAKEDIPROP(?)
#define DIPROP_INSTANCENAME  MAKEDIPROP(?)
#define DIPROP_PRODUCTNAME   MAKEDIPROP(?)

i guess the ids they represend are not documented anywhere but the
dinput.h from Microsoft. what is the "best practise" for cases like
this, to add them to wine's headers?