detect 32 / 64 bit OS

[davidec80]

Dear CVI users,

I've got a simple question:

I know that with the "GetWinOSVersion" si possibile to detect on which Win OS the application is running [GetWinOSVersion (&MajorVer, &MinorVer, &Build, &Platform);].

I was wondering if is there a way to detect if the OS is 32 or 64 bit.

thanks in advance.

[Wolfgang]

you could try to determine the size of an integer, it should make a difference...

[davidec80]

I'll make a try... but I'm afraid that the size of an integer is decided at compiler time, not at runtime...

What do you think?

[Wolfgang]

yep, you're right... if you have the full CVI version, you could use e.g. the GetNativeSystemInfo function, see here

[MJF]

See:

http://msdn.microsoft.com/en-us/library/ms724429(VS.85).aspx

The code there should get you started on how to determine exactly what OS version you are running on.

Caveats: It uses Windows SDK functions and I have not personally tested it in CVI. Also, the comments below the code indicate that it has some problems. But like I said, it is a start.

[msaxon]

There's a slightly easier method with example code here.