[GD-Windows] Mouse wheel

[Pierre T. <p.t...@wa...>]

I'm running Win98 / VC 6.0, and WM_MOUSEWHEEL seems not to be defined after
I include winuser.h. (it's protected by some #ifdef checking various Windows
versions - which seem to fail on my system).

Now, if I define :

    #define WM_MOUSEWHEEL  0x020A

(and other relevant ones), everything works as expected.

Is it normal ? What's the story with those defines for various Windows
versions ? Am I supposed to define one myself before including winuser.h ?
Or did I miss something ?

Thanks,

Pierre