clipka wrote:

> Indeed. I'm not familiar with testing for Windows version though, so I'd 
> file that under "non-trivial change" - I guess there might be quite some 
> pitfalls to that, given the diversity of past, present and (probably) 
> future Windows versions 

It's actually rather straight-forward as the internal version
numbering is different from the marketing names. The GetVersionEx
API call will fill data into a OSVERSIONINFO struct you pass to
it. If dwMajorVersion >= 5 you're on Windows 2000 or higher.
If the improved scaling method is not yet available in 2000
then the test should be

   dwMajorVersion >= 6 || (dwMajorVersion == 5 && dwMinorVersion >= 1)

for XP or higher. See

   http://msdn.microsoft.com/en-us/library/ms724451(v=VS.85).aspx

for more information.

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