Mega Code Archive
Windows Version
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Title: Windows Version
Question: Ever wonder how Windows know what version is running?
Answer:
It's an API call, and with a little tweaking, you can get it to give up it's secrets. Here is a function that returns a string with the version information.
function GetWindowsVersion: string;
var
// windows api structure
VersionInfo: TOSVersionInfo;
begin
// get size of the structure
VersionInfo.dwOSVersionInfoSize := SizeOf(VersionInfo);
// populate the struct using api call
GetVersionEx(VersionInfo);
// platformid gets the core platform
// major and minor versions also included.
with VersionInfo do
begin
case dwPlatformid of
0 : begin
result := 'Windows 3.11';
end; // end 0
1 : begin
case dwMinorVersion of
0 : result := 'Windows 95';
10: begin
if ( szCSDVersion[ 1 ] = 'A' ) then
Result :='Windows 98 SE'
else
Result := 'Windows 98';
end; // end 10
90 : result := 'Windows Millenium';
else
result := 'Unknown Version';
end; // end case
end; // end 1
2 : begin
case dwMajorVersion of
3 : result := 'Windows NT ' +
IntToStr(dwMajorVersion) + '.' +
IntToStr(dwMinorVersion);
4 : result := 'Windows NT ' +
IntToStr(dwMajorVersion) + '.' +
IntToStr(dwMinorVersion);
5 : begin
case dwMinorVersion of
0 : result := 'Windows 2000';
1 : result := 'Windows Whistler';
end; // end case
end; // end 5
else
result := 'Unknown Version';
end; // end case
// service packs apply to the NT/2000 platform
if szCSDVersion '' then
result := result + ' Service pack: ' + szCSDVersion;
end; // end 2
else
result := 'Unknown Platform';
end; // end case
// add build info.
result := result + ', Build: ' +
IntToStr(Loword(dwBuildNumber)) ;
end; // end version info
end; // GetWindowsVersion
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