Found bug (or 'feature' of Win32)

Cheers,

I’ve been trying to set a taskbar icon for a “NOFRAME” window. What
works fine in Linux, doesn’t work in Windows. This might be by design
(of Windows).

To demonstrate the bug, use the demo program from the SDL directory:
testwm -noframe

Experimentation for fixes haven’t produced any results yet. Maybe a
WS_POPUP window just doesn’t have an icon? Or, are we not processing
WM_SETICON messages? Or, do we have the proper 16x16 icon (GCL_HICONSM)?

Cheers
Andreas