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C++ Windows Program...   How to find out what version of Windows the user has?   ***EASY QUESTION***

Posted on 2003-11-08
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For a project I am doing I need to know what version of Windows the person running the program has?   For example, is it Windows 95?  Windows NT?  Windows XP?  ect.....  

This is probly really easy, but i could not find the answer anywhere, so please enlighten me!

Thanks in advance!
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Question by:Mazrim
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LVL 19

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by:Dexstar
ID: 9708583
Mazrim:

> For a project I am doing I need to know what version of Windows the person
> running the program has?   For example, is it Windows 95?  Windows NT?  Windows
> XP?  ect.....

> This is probly really easy, but i could not find the answer anywhere, so please enlighten me!

Use the Win32 API function "GetVersionEx".  It will fill in a struct with all the info you need.  Here is how to use it:
     http://msdn.microsoft.com/library/en-us/sysinfo/base/getversionex.asp

Here is a wrapper class that I use:
      class CVersion : public OSVERSIONINFO
      {
      // Construction
      public:  
            CVersion()
            {
                  dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
                  _CTL_DEBUG_FAIL( ::GetVersionEx(this) );
            }
      };


Hope that helps,
Dex*
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Dexstar earned 200 total points
ID: 9708588
> Here is a wrapper class that I use:

Actually, you don't have my debugging library, so that won't help you.  Use this instead:

     class CWindowsVersion : public OSVERSIONINFO
     {
     // Construction
     public:  
          CWindowsVersion()
          {
               dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
               ::GetVersionEx( this );
          }
     };


Dex*
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