QSysInfo provides information about the computer where the application is running. More...

Public Types
enum	Endian

enum	MacVersion

enum	Sizes

enum	WinVersion

Static Public Methods
static QString	macEdition (MacVersion macVersion)

static QString	machineHostName ()

static QSysInfo::MacVersion	macVersion ()

static QString	windowsEdition (WinVersion winVersion)

static WinVersion	windowsVersion ()

Static Public Members
static const MacVersion	MacintoshVersion

static const WinVersion	WindowsVersion

Detailed Description

The QSysInfo class provides operating system information about the computer where the application is running.

This class contains values which are only defined on specific platforms. The preprocessor symbols Q_OS_WIN and Q_OS_DARWIN can be used to test if the application was compiled for a operating system running Windows or Mac OS X.

Sizes::WordSize: Enum value which specifies the size of a pointer for the platform on which the application is compiled
Endian::ByteOrder: Enum value which specifies whether the platform is big-endian or little-endian
WindowsVersion: Class variable indicating the version of the Windows operating system which the application is running on (Windows only)
MacintoshVersion: Class variable indicating the version of the Mac OS X operating system which the application is running on (Mac OS X only)

See also: QLibraryInfo

Member Enumeration Documentation

enum QSysInfo::Endian

This enum can be used to determine the byte order of memory on the target system.

Constant	Value	Description
`QSysInfo::BigEndian`	`0`	Big-endian byte order (also called Network byte order)
`QSysInfo::LittleEndian`	`1`	Little-endian byte order
`QSysInfo::ByteOrder`	`0 or 1`	Equal to BigEndian or LittleEndian, depends on the CPU byte order

enum QSysInfo::MacVersion

This enum provides symbolic names for the various versions of the Mac OS X operating system. The QSysInfo::MacintoshVersion variable gives the version of the system on which the application is running.

Constant	Value	Description
`QSysInfo::MV_Unknown`	`0x0000`	Unknown platform
`QSysInfo::MV_10_11`	`0x0001`	OS X 10.11
`QSysInfo::MV_10_12`	`0x0002`	OS X 10.12
`QSysInfo::MV_10_13`	`0x0003`	OS X 10.13
`QSysInfo::MV_10_14`	`0x0004`	OS X 10.14
`QSysInfo::MV_10_15`	`0x0005`	OS X 10.15
`QSysInfo::MV_10_16`	`0x0006`	OS X 10.16
`QSysInfo::MV_11`	`0x0006`	OS X 11
`QSysInfo::MV_12`	`0x0007`	OS X 12
`QSysInfo::MV_13`	`0x0008`	OS X 13
`QSysInfo::MV_14`	`0x0009`	OS X 14
`QSysInfo::MV_ELCAPITAN`	`MV_10_11`	OS X 10.11
`QSysInfo::MV_SIERRA`	`MV_10_12`	OS X 10.12
`QSysInfo::MV_HIGHSIERRA`	`MV_10_13`	OS X 10.13
`QSysInfo::MV_MOJAVE`	`MV_10_14`	OS X 10.14
`QSysInfo::MV_CATALINA`	`MV_10_15`	OS X 10.15
`QSysInfo::MV_BIGSUR`	`MV_11`	OS X 11
`QSysInfo::MV_MONTEREY`	`MV_12`	OS X 12
`QSysInfo::MV_VENTURA`	`MV_13`	OS X 13
`QSysInfo::MV_SONOMA`	`MV_14`	OS X 14

enum QSysInfo::Sizes

This enum provides platform specific information about the sizes of data structures used by the underlying architecture.

Constant	Value	Description
`QSysInfo::WordSize`	`sizeof(void ) 8`	Size in bits of a pointer for the platform on which the application is compiled (32 or 64).

enum QSysInfo::WinVersion

This enum provides symbolic names for the various versions of the Windows operating system. On Windows the QSysInfo::WindowsVersion variable gives the version of the system on which the application is running.

Constant	Value	Description
`QSysInfo::WV_NT`	`0x0010`	Windows NT
`QSysInfo::WV_2000`	`0x0020`	Windows 2000
`QSysInfo::WV_XP`	`0x0030`	Windows XP
`QSysInfo::WV_2003`	`0x0040`	Windows Server 2003, Windows Server 2003 R2, Home Server
`QSysInfo::WV_VISTA`	`0x0080`	Windows Vista, Windows Server 2008
`QSysInfo::WV_WINDOWS7`	`0x0090`	Windows 7, Windows Server 2008 R2
`QSysInfo::WV_WINDOWS8`	`0x00a0`	Windows 8
`QSysInfo::WV_WINDOWS8_1`	`0x00b0`	Windows 8.1
`QSysInfo::WV_WINDOWS10`	`0x00c0`	Windows 10.0
`QSysInfo::WV_WINDOWS11`	`0x00d0`	Windows 11.0

Alternatively use the following macros which correspond directly to the Windows operating system version number.

Constant	Value	Description
`QSysInfo::WV_4_0`	`WV_NT`	Corresponds to Windows NT
`QSysInfo::WV_5_0`	`WV_2000`	Corresponds to Windows 2000
`QSysInfo::WV_5_1`	`WV_XP`	Corresponds to Windows XP
`QSysInfo::WV_5_2`	`WV_2003`	Corresponds to Windows Server 2003, Windows Server 2003 R2, Home Server
`QSysInfo::WV_6_0`	`WV_VISTA`	Corresponds to Windows Vista, Windows Server 2008
`QSysInfo::WV_6_1`	`WV_WINDOWS7`	Corresponds to Windows 7, Windows Server 2008 R2
`QSysInfo::WV_6_2`	`WV_WINDOWS8`	Corresponds to Windows 8
`QSysInfo::WV_6_3`	`WV_WINDOWS8_1`	Corresponds to Windows 8.1
`QSysInfo::WV_10_0`	`WV_WINDOWS10`	Corresponds to Windows 10.0
`QSysInfo::WV_11_0`	`WV_WINDOWS11`	Corresponds to Windows 11.0

Method Documentation

QString QSysInfo::macEdition ( MacVersion macVersion )

static

Returns the name of the Mac OS X operating system which corresponds to the macVersion (Mac OS X only).

QString QSysInfo::machineHostName ( )

static

Returns the host name for the computer where the application is running. The host name is not guaranteed to be globally unique, especially if they were configured automatically. Equivalent to calling QHostInfo::localHostName().

This method does not guarantee the returned host name is a Fully Qualified Domain Name (FQDN). If this is required use QHostInfo to resolve the FQDN.

See also: QHostInfo::localDomainName()

QSysInfo::MacVersion QSysInfo::macVersion ( )

static

Returns the version of Mac OS X on which the application is running. Returns MV_None if the operating system is not a version of Darwin (Mac OS X only).

QString QSysInfo::windowsEdition ( WinVersion winVersion )

static

Returns the name of the Windows operating system which corresponds to the winVersion (Windows only).

WinVersion QSysInfo::windowsVersion ( )

static

Returns the version of the Windows operating system on which the application is running (Windows only).

Member Data Documentation

const MacVersion QSysInfo::MacintoshVersion

static

This variable holds the version of the Macintosh operating system on which the application is running (Mac OS X only).

const WinVersion QSysInfo::WindowsVersion

static

This variable holds the version of the Windows operating system on which the application is running (Windows only).

Public Types

Static Public Methods

Static Public Members

Detailed Description

Member Enumeration Documentation

Method Documentation

Member Data Documentation