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QSysInfo Class Reference

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

#include <QSysInfo>

Part of the QtCore module.

Public Types

Static Public Members


Detailed Description

The QSysInfo class provides information about the system.

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

See also QLibraryInfo.


Member Type Documentation

enum QSysInfo::Endian

ConstantValueDescription
QSysInfo::BigEndian0Big-endian byte order (also called Network byte order)
QSysInfo::LittleEndian1Little-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 Macintosh operating system. On Mac, the QSysInfo::MacintoshVersion variable gives the version of the system on which the application is run.

ConstantValueDescription
QSysInfo::MV_90x0001MacOS 9 (unsupported)
QSysInfo::MV_10_00x0002Mac OS X 10.0
QSysInfo::MV_10_10x0003Mac OS X 10.1
QSysInfo::MV_10_20x0004Mac OS X 10.2
QSysInfo::MV_10_30x0005Mac OS X 10.3
QSysInfo::MV_10_40x0006Mac OS X 10.4
QSysInfo::MV_Unknown0x0000Other

See also WinVersion.

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.

MS-DOS-based versions:

ConstantValueDescription
QSysInfo::WV_32s0x0001Windows 3.1 wth Win 32s
QSysInfo::WV_950x0002Windows 95
QSysInfo::WV_980x0003Windows 98
QSysInfo::WV_Me0x0004Windows Me

NT-based versions:

ConstantValueDescription
QSysInfo::WV_NT0x0010Windows NT
QSysInfo::WV_20000x0020Windows 2000
QSysInfo::WV_XP0x0030Windows XP
QSysInfo::WV_20030x0040Windows XP 2003

CE-based versions:

ConstantValueDescription
QSysInfo::WV_CE0x0100Windows CE
QSysInfo::WV_CENET0x0200Windows CE .NET

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

ConstantValueDescription
QSysInfo::WV_DOS_based0x000fMS-DOS-based version of Windows
QSysInfo::WV_NT_based0x00f0NT-based version of Windows
QSysInfo::WV_CE_based0x0f00CE-based version of Windows

See also MacVersion.


Member Variable Documentation

const MacVersion QSysInfo::MacintoshVersion

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

const WinVersion QSysInfo::WindowsVersion

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

const int QSysInfo::WordSize

This variable holds the size in bits of a pointer for the platform on which the application is compiled (32 or 64).


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Qt 4.0.0-rc1