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QSysInfo ClassThe QSysInfo class provides information about the system. More... #include <QSysInfo>
Public Types
Static Public Members
Detailed DescriptionThe QSysInfo class provides information about the system.
Some constants are defined only on certain platforms. You can use the preprocessor symbols Q_OS_WIN and Q_OS_MAC to test that the application is compiled under Windows or Mac. See also QLibraryInfo. Member Type Documentation
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| 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 Macintosh operating system. On Mac, the QSysInfo::MacintoshVersion variable gives the version of the system on which the application is run.
| Constant | Value | Description |
|---|---|---|
| QSysInfo::MV_9 | 0x0001 | Mac OS 9 (unsupported) |
| QSysInfo::MV_10_0 | 0x0002 | Mac OS X 10.0 (unsupported) |
| QSysInfo::MV_10_1 | 0x0003 | Mac OS X 10.1 (unsupported) |
| QSysInfo::MV_10_2 | 0x0004 | Mac OS X 10.2 (unsupported) |
| QSysInfo::MV_10_3 | 0x0005 | Mac OS X 10.3 |
| QSysInfo::MV_10_4 | 0x0006 | Mac OS X 10.4 |
| QSysInfo::MV_10_5 | 0x0007 | Mac OS X 10.5 |
| QSysInfo::MV_10_6 | 0x0008 | Mac OS X 10.6 |
| QSysInfo::MV_10_7 | 0x0009 | Mac OS X 10.7 |
| QSysInfo::MV_Unknown | 0x0000 | An unknown and currently unsupported platform |
| QSysInfo::MV_CHEETAH | MV_10_0 | Apple codename for MV_10_0 |
| QSysInfo::MV_PUMA | MV_10_1 | Apple codename for MV_10_1 |
| QSysInfo::MV_JAGUAR | MV_10_2 | Apple codename for MV_10_2 |
| QSysInfo::MV_PANTHER | MV_10_3 | Apple codename for MV_10_3 |
| QSysInfo::MV_TIGER | MV_10_4 | Apple codename for MV_10_4 |
| QSysInfo::MV_LEOPARD | MV_10_5 | Apple codename for MV_10_5 |
| QSysInfo::MV_SNOWLEOPARD | MV_10_6 | Apple codename for MV_10_6 |
| QSysInfo::MV_LION | MV_10_7 | Apple codename for MV_10_7 |
| QSysInfo::MV_MOUNTAINLION | MV_10_8 | Apple codename for MV_10_8 |
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.
MS-DOS-based versions:
| Constant | Value | Description |
|---|---|---|
| QSysInfo::WV_32s | 0x0001 | Windows 3.1 with Win 32s |
| QSysInfo::WV_95 | 0x0002 | Windows 95 |
| QSysInfo::WV_98 | 0x0003 | Windows 98 |
| QSysInfo::WV_Me | 0x0004 | Windows Me |
NT-based versions (note that each operating system version is only represented once rather than each Windows edition):
| Constant | Value | Description |
|---|---|---|
| QSysInfo::WV_NT | 0x0010 | Windows NT (operating system version 4.0) |
| QSysInfo::WV_2000 | 0x0020 | Windows 2000 (operating system version 5.0) |
| QSysInfo::WV_XP | 0x0030 | Windows XP (operating system version 5.1) |
| QSysInfo::WV_2003 | 0x0040 | Windows Server 2003, Windows Server 2003 R2, Windows Home Server, Windows XP Professional x64 Edition (operating system version 5.2) |
| QSysInfo::WV_VISTA | 0x0080 | Windows Vista, Windows Server 2008 (operating system version 6.0) |
| QSysInfo::WV_WINDOWS7 | 0x0090 | Windows 7, Windows Server 2008 R2 (operating system version 6.1) |
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 |
CE-based versions:
| Constant | Value | Description |
|---|---|---|
| QSysInfo::WV_CE | 0x0100 | Windows CE |
| QSysInfo::WV_CENET | 0x0200 | Windows CE .NET |
| QSysInfo::WV_CE_5 | 0x0300 | Windows CE 5.x |
| QSysInfo::WV_CE_6 | 0x0400 | Windows CE 6.x |
The following masks can be used for testing whether a Windows version is MS-DOS-based, NT-based, or CE-based:
| Constant | Value | Description |
|---|---|---|
| QSysInfo::WV_DOS_based | 0x000f | MS-DOS-based version of Windows |
| QSysInfo::WV_NT_based | 0x00f0 | NT-based version of Windows |
| QSysInfo::WV_CE_based | 0x0f00 | CE-based version of Windows |
See also MacVersion.
Member Function Documentation
MacVersion QSysInfo::macVersion() [static]
Returns the version of Mac OS X on which the application is run (Mac OS X Only).
WinVersion QSysInfo::windowsVersion() [static]
Returns the version of the Windows operating system on which the application is run (Windows only).
This function was introduced in Qt 4.4.
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).