detecting OS version at run-time vs compile-time
lazarus / 34-Windows

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beefycoder · 2011-01-17 23:12

I am trying to translate some (to me complicated) source code written
in C# and have found a line with

Code: [Select]int p = (int)Environment.OSVersion.Platform;

To cut the long story short : what values does FPCTARGETOS return for
following cases :

Code: [Select]Windows 32bit
Windows 64bit
Linux 32bit
Linux 64bit

I only have access to Windows 32bit and FPCTARGETOS returned "Win32",
i can only assume rest since i had to resort to some rather strange
googling methods to find just some of the possible values FPCTARGETOS
can return. Even now i'm not sure i got them all right.

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typo · 2011-01-18 00:07

If knowing the target compilation OS is not enough for you, try
GetVersionEx, http://msdn.microsoft.com/en-
us/library/ms724451%28VS.85%29.aspx

For Windows, of course.

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marcov · 2011-01-18 08:41

And for *nix* you might want to look at baseunix.fpuname.