QSysInfo Class Reference
The QSysInfo class provides information about the system. More...
#include <QSysInfo>
Public Types
- enum Endian { BigEndian, LittleEndian, ByteOrder }
- enum MacVersion { MV_9, MV_10_0, MV_10_1, MV_10_2, ..., MV_LEOPARD }
- enum Sizes { WordSize }
- enum WinVersion { WV_32s, WV_95, WV_98, WV_Me, ..., WV_CE_based }
Static Public Members
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_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
| 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_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 |
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:
| 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 |
| QSysInfo::WV_VISTA | 0x0080 | Windows Vista |
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
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).
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