System.SysUtils.Win32MajorVersion
Delphi
function Win32MajorVersion: Integer;
C++
extern DELPHI_PACKAGE int __fastcall Win32MajorVersion(void);
Properties
| Type | Visibility | Source | Unit | Parent | 
|---|---|---|---|---|
| function | public | System.SysUtils.pas System.SysUtils.hpp  | 
        System.SysUtils | System.SysUtils | 
Description
Specifies which major Windows Operating System version is operating.
Win32MajorVersion specifies the major version of the Operating System. The unique identifier for a Windows Operating System is Win32MajorVersion.Win32MinorVersion.Win32BuildNumber.
Note: Win32MajorVersion is available on Windows only.
The following table lists recent major versions of Windows:
| Major Version | Windows Version | 
|---|---|
| 
 6  | 
  | 
| 
 5  | 
  |