Getting the OS installed on the computer

What I need is to make a a function that returns me what Operating system is installed on the comoputer. For example. Windows 2000 Server, Windows 2000 Professional, etc...
fabyolaAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Ferruccio AccalaiSenior developer, analyst and customer assistance Commented:
procedure TForm1.Button1Click(Sender: TObject);
Function GetVersionName:String;
var
      Key: HKEY;
      PT: array[0..80] of Char;
      BL: DWORD;
   AFOSVersionInfo: TOSVersionInfo;
begin
result := '';
AFOSVersionInfo.dwOSVersionInfoSize := SizeOf(AFOSVersionInfo);
If GetVersionEx(AFOSVersionInfo) then
begin
      case AFOSVersionInfo.dwPlatformId of
            VER_PLATFORM_WIN32s: result := 'Win32s';
            VER_PLATFORM_WIN32_WINDOWS:
            begin
                  case AFOSVersioninfo.dwMinorVersion of
                        0:    result := 'Windows 95';
                        10:   result := 'Windows 98';
                        90:   result := 'Windows ME'
                        else result := 'Unknown Win9x';
                  end;
            end;
            VER_PLATFORM_WIN32_NT:
            begin
            IF AFOSVersionInfo.dwMajorVersion <= 4 then
                     Result := 'Windows NT' else begin
                     case AFOSVersioninfo.dwMinorVersion of
                             0: result := 'Windows 2000';
                             1: result := 'Windows XP';
                          end;
            RegOpenKeyEx( HKEY_LOCAL_MACHINE,
                              'SYSTEM\CurrentControlSet\Control\ProductOptions',
                              0, KEY_QUERY_VALUE, Key );
            RegQueryValueEx(Key, 'ProductType', nil, nil,@PT, @BL);
            RegCloseKey(Key);
            if AnsiCompareText('WINNT', PT) = 0 then
            Result := result + ' Professional';
            if AnsiCompareText('LANMANNT', PT) = 0 then
            Result := Result +' Server';
            if AnsiCompareText('SERVERNT', PT) = 0 then
            Result := Result+' Advanced Server';
            End;
      End;
      end;
end;
end;
begin
SHOWMESSAGE(GETVERSIONNAME);
end;

F68 ;-)
0
HypoviaxCommented:
Try something like this:

var
// Global OS vars
VersionInfo: TOSVersionInfo;
Platform: string;
MajorVersion,MinorVersion,Build: DWORD;

procedure GetOSVersion;
begin
VersionInfo.dwOSVersionInfoSize := SizeOf(VersionInfo);
GetVersionEx(VersionInfo);

with VersionInfo do
begin
case dwPlatformId of
VER_PLATFORM_WIN32s: Platform := '3.1';
VER_PLATFORM_WIN32_WINDOWS : Platform := '98';
VER_PLATFORM_WIN32_NT:
begin
Case dwMajorVersion of
5 : Platform := '2000/NT';
else
Platform := 'NT';
end;
if dwBuildNumber > = 2500 then Platform := 'XP'
end;
end;

MajorVersion := dwMajorVersion;
MinorVersion := dwMinorVersion;
Build := dwBuildNumber;
end;
end;

Regards,

Hypoviax
0
HypoviaxCommented:
Oh i forgot to say read from the platform variable to find the OS
0
Cloud Class® Course: CompTIA Healthcare IT Tech

This course will help prep you to earn the CompTIA Healthcare IT Technician certification showing that you have the knowledge and skills needed to succeed in installing, managing, and troubleshooting IT systems in medical and clinical settings.

JaccoCommented:
In de jedi code library their is a very good function that knows all windows versions / service packs.

http://sourceforge.net/projects/jcl/

Regards Jacco
0
fabyolaAuthor Commented:
Hypoviax, I can´t find it. What´s it´s name ??
0
Ferruccio AccalaiSenior developer, analyst and customer assistance Commented:
the way is that one posted by me...
Of course is also possible to get Service packs....tell me if you need it....
0
fabyolaAuthor Commented:
Ferruccio68, Is there a way to get what service pack is installed too ??
0
Ferruccio AccalaiSenior developer, analyst and customer assistance Commented:
yes of course... wait a little....i'm implementing it...
0
fabyolaAuthor Commented:
Yeah can you help me please ?
0
Ferruccio AccalaiSenior developer, analyst and customer assistance Commented:
well...here you are....this retrieve every OS version with SP value...

procedure TForm1.Button1Click(Sender: TObject);
Function GetVersionName:String;
var
     Key: HKEY;
     PT: array[0..80] of Char;
     BL: DWORD;
     AFOSVersionInfo: TOSVersionInfo;
     MaxVer, MinVer: Integer;
     CsdVersion: String;
begin
result := '';
AFOSVersionInfo.dwOSVersionInfoSize := SizeOf(AFOSVersionInfo);
If GetVersionEx(AFOSVersionInfo) then
begin
        MaxVer := AFOSVersionInfo.dwMajorVersion;
     MinVer := AFOSVersionInfo.dwMinorVersion;
     CSDVersion := AfOsVersionInfo.szCSDVersion;
     case AFOSVersionInfo.dwPlatformId of
          VER_PLATFORM_WIN32s: result := 'Win32s';
          VER_PLATFORM_WIN32_WINDOWS:
          begin
               case AFOSVersioninfo.dwMinorVersion of
                    0:    result := 'Windows 95';
                    10:   result := 'Windows 98';
                    90:   result := 'Windows ME'
                    else result := 'Unknown Win9x';
               end;
          if MaxVer = 4 then
             begin
               if (MinVer = 0)
                 and ((Trim(CSDVersion)[1] = 'C') or (Trim(CSDVersion)[1] = 'B')) then
                 Result := result + ' OSR2'
               else if (MinVer = 10) and (Trim(CSDVersion)[1] = 'A') then
                 Result := Result +' SE';
             end;
          end;
          VER_PLATFORM_WIN32_NT:
          begin
            IF AFOSVersionInfo.dwMajorVersion <= 4 then
                  Result := 'Windows NT' else begin
                  case AFOSVersioninfo.dwMinorVersion of
                         0: result := 'Windows 2000';
                         1: result := 'Windows XP';
                       end;
          RegOpenKeyEx( HKEY_LOCAL_MACHINE,
                         'SYSTEM\CurrentControlSet\Control\ProductOptions',
                         0, KEY_QUERY_VALUE, Key );
          RegQueryValueEx(Key, 'ProductType', nil, nil,@PT, @BL);
          RegCloseKey(Key);
          if AnsiCompareText('WINNT', PT) = 0 then
          Result := result + ' Professional';
          if AnsiCompareText('LANMANNT', PT) = 0 then
          Result := Result +' Server';
          if AnsiCompareText('SERVERNT', PT) = 0 then
          Result := Result+' Advanced Server';
          result := result+' '+CSDVersion;
          End;
      End;
     end;
end;
end;
begin
SHOWMESSAGE(GETVERSIONNAME);
end;
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
fabyolaAuthor Commented:
It worked like a charme. Thanx Alot. It will work on Windows 95 too ??? You showed me just what I needed.
0
Ferruccio AccalaiSenior developer, analyst and customer assistance Commented:
yes of course...look this part:
[...]
case AFOSVersionInfo.dwPlatformId of
          VER_PLATFORM_WIN32s: result := 'Win32s'; //this means win 3.1
          VER_PLATFORM_WIN32_WINDOWS:
          begin
               case AFOSVersioninfo.dwMinorVersion of
                    0:    result := 'Windows 95';
                    10:   result := 'Windows 98';
                    90:   result := 'Windows ME'
                    else result := 'Unknown Win9x';
               end;
[...]
every Windows OS type is retrieved, so Win95 too...
0
fabyolaAuthor Commented:
Thanx again Ferruccio68. When shows Advanced Server means that it´s a Windows NT Server ?
0
Ferruccio AccalaiSenior developer, analyst and customer assistance Commented:
well this is what procuct type values mean:

WinNT = NT Workstation
ServerNT = NT Server
LanmanNT= NT Server (Enterprise Edition)
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Delphi

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.