The QSysInfo class provides information about the system. More...

Public Types
enum	Endian

enum	MacVersion

enum	Sizes

enum	WinVersion

Static Public Methods
static QString	machineHostName ()

static QSysInfo::MacVersion	macVersion ()

static WinVersion	windowsVersion ()

Static Public Members
static const MacVersion	MacintoshVersion

static const WinVersion	WindowsVersion

Detailed Description

The QSysInfo class provides information about the system.

WordSize specifies the size of a pointer for the platform on which the application is compiled.
ByteOrder specifies whether the platform is big-endian or little-endian.
WindowsVersion specifies the version of the Windows operating system on which the application is run (Windows only)
MacintoshVersion specifies the version of the Macintosh operating system on which the application is run (Mac only).

Some constants are defined only on certain platforms. You can use the preprocessor symbols Q_OS_WIN and Q_OS_DARWIN to test that the application is compiled under Windows or Mac OS X.

See also: QLibraryInfo

Member Enumeration Documentation

enum QSysInfo::Endian

Constant	Value	Description
`QSysInfo::BigEndian`	`0`	Big-endian byte order (also called Network byte order)
`QSysInfo::LittleEndian`	`1`	Little-endian byte order
`QSysInfo::ByteOrder`	`platform-dependent`	Equals BigEndian or LittleEndian, depending on the platform's 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 run.

Constant	Value	Description
`QSysInfo::MV_10_11`	`0x000D`	OS X 10.11
`QSysInfo::MV_10_12`	`0x000E`	OS X 10.12
`QSysInfo::MV_10_13`	`0x000F`	OS X 10.13
`QSysInfo::MV_10_14`	`0x0010`	OS X 10.14
`QSysInfo::MV_Unknown`	`0x0000`	An unknown and currently unsupported platform
`QSysInfo::MV_ELCAPITAN`	`MV_10_11`
`QSysInfo::MV_SIERRA`	`MV_10_12`
`QSysInfo::MV_HIGHSIERRA`	`MV_10_13`
`QSysInfo::MV_MOJAVE`	`MV_10_14`

See also: WinVersion

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 * ) <<3 )`	The 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 run.

Constant	Value	Description
`QSysInfo::WV_NT`	`0x0010`	Windows NT (OS version 4.0)
`QSysInfo::WV_2000`	`0x0020`	Windows 2000 (OS version 5.0)
`QSysInfo::WV_XP`	`0x0030`	Windows XP (OS version 5.1)
`QSysInfo::WV_2003`	`0x0040`	Windows Server 2003, Windows Server 2003 R2, Windows Home Server, Windows XP Professional x64 Edition (OS version 5.2)
`QSysInfo::WV_VISTA`	`0x0080`	Windows Vista, Windows Server 2008 (OS version 6.0)
`QSysInfo::WV_WINDOWS7`	`0x0090`	Windows 7, Windows Server 2008 R2 (OS version 6.1)
`QSysInfo::WV_WINDOWS8`	`0x00a0`	Windows 8 (OS version 6.2)
`QSysInfo::WV_WINDOWS8_1`	`0x00b0`	Windows 8.1 (OS version 6.3)
`QSysInfo::WV_WINDOWS10`	`0x00b0`	Windows 10.0 (OS version 10.0)

Alternatively, you may use the following macros which correspond directly to the Windows operating system version number:

Constant	Value	Description
`QSysInfo::WV_4_0`	`WV_NT`	Operating system version 4.0, corresponds to Windows NT
`QSysInfo::WV_5_0`	`WV_2000`	Operating system version 5.0, corresponds to Windows 2000
`QSysInfo::WV_5_1`	`WV_XP`	Operating system version 5.1, corresponds to Windows XP
`QSysInfo::WV_5_2`	`WV_2003`	Operating system version 5.2, corresponds to Windows Server 2003, Windows Server 2003 R2, Windows Home Server, and Windows XP Professional x64 Edition
`QSysInfo::WV_6_0`	`WV_VISTA`	Operating system version 6.0, corresponds to Windows Vista and Windows Server 2008
`QSysInfo::WV_6_1`	`WV_WINDOWS7`	Operating system version 6.1, corresponds to Windows 7 and Windows Server 2008 R2
`QSysInfo::WV_6_2`	`WV_WINDOWS8`	Operating system version 6.2, corresponds to Windows 8
`QSysInfo::WV_6_3`	`WV_WINDOWS8_1`	Operating system version 6.3, corresponds to Windows 8.1
`QSysInfo::WV_10_0`	`WV_WINDOWS10`	Operating system version 10.0, corresponds to Windows 10.0

The following masks can be used for testing whether a Windows version is MS-DOS-based, NT-based, or CE-based:

See also: MacVersion

Method Documentation

QString QSysInfo::machineHostName ( )

static

Returns this machine's host name if one is configured. Hostnames are 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 returned name to an FQDN.

See also: QHostInfo::localDomainName()

QSysInfo::MacVersion QSysInfo::macVersion ( )

static

Returns the version of Mac OS X on which the application is run. Returns MV_None if the operating system is not a version of Darwin.

WinVersion QSysInfo::windowsVersion ( )

static

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

const WinVersion QSysInfo::WindowsVersion

static

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

Public Types

Static Public Methods

Static Public Members

Detailed Description

Member Enumeration Documentation

Method Documentation

Member Data Documentation