QOperatingSystemVersion ¶

概要 ¶

详细描述 ¶

不像其它版本函数在 QSysInfo , QOperatingSystemVersion provides access to the full version number that developers typically use to vary behavior or determine whether to enable APIs or features based on the operating system version (as opposed to the kernel version number or marketing version).

This class is also a complete replacement for macVersion and windowsVersion , additionally providing access to the third (micro) version number component.

Presently, Android, Apple Platforms (iOS, macOS, tvOS, and watchOS), and Windows are supported.

majorVersion() , minorVersion() ，和 microVersion() functions return the parts of the operating system version number based on:

平台	值
Android	result of parsing android.os.Build.VERSION.RELEASE 使用 QVersionNumber , with a fallback to android.os.Build.VERSION.SDK_INT to determine the major and minor version component if the former fails
Apple Platforms	majorVersion , minorVersion , and patchVersion from NSProcessInfo.operatingSystemVersion
Windows	dwMajorVersion, dwMinorVersion, and dwBuildNumber from RtlGetVersion - note that this function ALWAYS return the version number of the underlying operating system, as opposed to the shim underneath GetVersionEx that hides the real version number if the application is not manifested for that version of the OS

因为 QOperatingSystemVersion stores both a version number and an OS type, the OS type can be taken into account when performing comparisons. For example, on a macOS system running macOS Sierra (v10.12), the following expression will return false even though the major version number component of the object on the left hand side of the expression (10) is greater than that of the object on the right (9):

QOperatingSystemVersion::current() >= QOperatingSystemVersion(QOperatingSystemVersion::IOS, 9)
											

This allows expressions for multiple operating systems to be joined with a logical OR operator and still work as expected. For example:

auto current = QOperatingSystemVersion::current();
if (current >= QOperatingSystemVersion::OSXYosemite ||
    current >= QOperatingSystemVersion(QOperatingSystemVersion::IOS, 8)) {
    // returns true on macOS >= 10.10 and iOS >= 8.0, but false on macOS < 10.10 and iOS < 8.0
}
											

A more naive comparison algorithm might incorrectly return true on all versions of macOS, including Mac OS 9. This behavior is achieved by overloading the comparison operators to return false whenever the OS types of the QOperatingSystemVersion instances being compared do not match. Be aware that due to this it can be the case x >= y and x < y are BOTH false for the same instances of x and y .

class QOperatingSystemVersion ( osType , vmajor [ , vminor=-1 [ , vmicro=-1 ] ] ) ¶

QOperatingSystemVersion(QOperatingSystemVersion)

param osType

OSType

param vminor

int

param QOperatingSystemVersion

QOperatingSystemVersion

param vmicro

int

param vmajor

int

构造 QOperatingSystemVersion consisting of the OS type osType , and major, minor, and micro version numbers vmajor , vminor and vmicro ，分别。

PySide2.QtCore.QOperatingSystemVersion. OSType ¶

This enum provides symbolic names for the various operating system families supported by QOperatingSystemVersion .

常量	描述
QOperatingSystemVersion.Android	The Google Android operating system.
QOperatingSystemVersion.IOS	The Apple iOS operating system.
QOperatingSystemVersion.MacOS	The Apple macOS operating system.
QOperatingSystemVersion.TvOS	The Apple tvOS operating system.
QOperatingSystemVersion.WatchOS	The Apple watchOS operating system.
QOperatingSystemVersion.Windows	The Microsoft Windows operating system.
QOperatingSystemVersion.Unknown	An unknown or unsupported operating system.

PySide2.QtCore.QOperatingSystemVersion. Windows7 ¶

PySide2.QtCore.QOperatingSystemVersion. Windows8 ¶

PySide2.QtCore.QOperatingSystemVersion. Windows8_1 ¶

PySide2.QtCore.QOperatingSystemVersion. Windows10 ¶

PySide2.QtCore.QOperatingSystemVersion. OSXMavericks ¶

PySide2.QtCore.QOperatingSystemVersion. OSXYosemite ¶

PySide2.QtCore.QOperatingSystemVersion. OSXElCapitan ¶

PySide2.QtCore.QOperatingSystemVersion. MacOSSierra ¶

PySide2.QtCore.QOperatingSystemVersion. MacOSHighSierra ¶

PySide2.QtCore.QOperatingSystemVersion. MacOSMojave ¶

PySide2.QtCore.QOperatingSystemVersion. MacOSCatalina ¶

PySide2.QtCore.QOperatingSystemVersion. AndroidJellyBean ¶

PySide2.QtCore.QOperatingSystemVersion. AndroidJellyBean_MR1 ¶

PySide2.QtCore.QOperatingSystemVersion. AndroidJellyBean_MR2 ¶

PySide2.QtCore.QOperatingSystemVersion. AndroidKitKat ¶

PySide2.QtCore.QOperatingSystemVersion. AndroidLollipop ¶

PySide2.QtCore.QOperatingSystemVersion. AndroidLollipop_MR1 ¶

PySide2.QtCore.QOperatingSystemVersion. AndroidMarshmallow ¶

PySide2.QtCore.QOperatingSystemVersion. AndroidNougat ¶

PySide2.QtCore.QOperatingSystemVersion. AndroidNougat_MR1 ¶

PySide2.QtCore.QOperatingSystemVersion. AndroidOreo ¶

static PySide2.QtCore.QOperatingSystemVersion. current ( ) ¶

返回类型

QOperatingSystemVersion

返回 QOperatingSystemVersion 指示当前 OS (操作系统) 及其版本号。

另请参阅

currentType()

static PySide2.QtCore.QOperatingSystemVersion. currentType ( ) ¶

返回类型

OSType

返回当前 OS 类型无需构造 QOperatingSystemVersion 实例。

另请参阅

current()

PySide2.QtCore.QOperatingSystemVersion. majorVersion ( ) ¶

返回类型

int

Returns the major version number, that is, the first segment of the operating system’s version number.

See the main class documentation for what the major version number is on a given operating system.

-1 indicates an unknown or absent version number component.

另请参阅

minorVersion() microVersion()

PySide2.QtCore.QOperatingSystemVersion. microVersion ( ) ¶

返回类型

int

Returns the micro version number, that is, the third segment of the operating system’s version number.

See the main class documentation for what the micro version number is on a given operating system.

-1 indicates an unknown or absent version number component.

另请参阅

majorVersion() minorVersion()

PySide2.QtCore.QOperatingSystemVersion. minorVersion ( ) ¶

返回类型

int

Returns the minor version number, that is, the second segment of the operating system’s version number.

See the main class documentation for what the minor version number is on a given operating system.

-1 indicates an unknown or absent version number component.

另请参阅

majorVersion() microVersion()

PySide2.QtCore.QOperatingSystemVersion. name ( ) ¶

返回类型

unicode

Returns a string representation of the OS type identified by the QOperatingSystemVersion .

另请参阅

type()

PySide2.QtCore.QOperatingSystemVersion. segmentCount ( ) ¶

返回类型

int

Returns the number of integers stored in the version number.

PySide2.QtCore.QOperatingSystemVersion. type ( ) ¶

返回类型

OSType

Returns the OS type identified by the QOperatingSystemVersion .

另请参阅

name()