and also a 32bit OS from a 64bit OS?
Are there some #ifdef I can use to detect the actual OS version and whether it is 32 or 64 bit?
and also a 32bit OS from a 64bit OS? Are there some #ifdef I
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and also a 32bit OS from a 64bit OS?
Are there some #ifdef I can use to detect the actual OS version and whether it is 32 or 64 bit?
At compile time you can use the
WINVER&_WIN64macro’s, though this info is for the OS(es) being targeted, not the OS being compiled on.At runtime you can use
GetVersionExto get OS version info andIsWOW64Processto determine if you are running on 64 or 32 bit.