QOpcUaHistoryEvent Class

该类存储节点的历史事件。更多

Header：	`#include <QOpcUaHistoryEvent>`
CMake：	`find_package(Qt6 REQUIRED COMPONENTS OpcUa)` `target_link_libraries(mytarget PRIVATE Qt6::OpcUa)`
qmake：	`QT += opcua`
自	Qt 6.7

所有成员的列表，包括继承成员

公共函数

	QOpcUaHistoryEvent()
	QOpcUaHistoryEvent(const QString &nodeId)
	QOpcUaHistoryEvent(const QOpcUaHistoryEvent &other)
	QOpcUaHistoryEvent(QOpcUaHistoryEvent &&other)
	~QOpcUaHistoryEvent()
void	addEvent(const QVariantList &value)
int	count() const
QList<QVariantList>	events() const
QString	nodeId() const
void	setNodeId(const QString &nodeId)
void	setStatusCode(QOpcUa::UaStatusCode statusCode)
QOpcUa::UaStatusCode	statusCode() const
void	swap(QOpcUaHistoryEvent &other)
QOpcUaHistoryEvent &	operator=(QOpcUaHistoryEvent &&other)
QOpcUaHistoryEvent &	operator=(const QOpcUaHistoryEvent &other)

bool	operator!=(const QOpcUaHistoryEvent &lhs, const QOpcUaHistoryEvent &rhs)
bool	operator==(const QOpcUaHistoryEvent &lhs, const QOpcUaHistoryEvent &rhs)

详细描述

在处理读取历史事件的请求时，该类的实例用于存储有关已读取的节点、其事件和状态代码的信息。历史读取响应的完成信号将返回一个 QOpcUaHistoryEvent 对象列表，可对其进行解析以查看请求结果。

成员函数文档

QOpcUaHistoryEvent::QOpcUaHistoryEvent()

构造一个无效的历史事件项。

`[explicit]` QOpcUaHistoryEvent::QOpcUaHistoryEvent(const QString &nodeId)

构建一个历史事件项，并存储其对应的节点。

QOpcUaHistoryEvent::QOpcUaHistoryEvent(const QOpcUaHistoryEvent &other)

从other 中构造一个历史事件项。

`[noexcept]` QOpcUaHistoryEvent::QOpcUaHistoryEvent(QOpcUaHistoryEvent &&other)

移动-从other 构建一个新的历史事件对象。

注： moved-from 对象other 处于部分形成状态，其中唯一有效的操作是销毁和赋新值。

`[noexcept]` QOpcUaHistoryEvent::~QOpcUaHistoryEvent()

销毁历史事件项。

void QOpcUaHistoryEvent::addEvent(const QVariantList &value)

添加value 给定的事件字段列表。

int QOpcUaHistoryEvent::count() const

返回可用事件的数量。

QList<QVariantList> QOpcUaHistoryEvent::events() const

返回包含历史读取请求结果的QVariantList 对象列表。

QString QOpcUaHistoryEvent::nodeId() const

返回已存储事件的节点的 nodeId。

另请参阅 setNodeId().

void QOpcUaHistoryEvent::setNodeId(const QString &nodeId)

将nodeId 设置为nodeId 。

另请参阅 nodeId() 。

void QOpcUaHistoryEvent::setStatusCode(QOpcUa::UaStatusCode statusCode)

将状态代码设为statusCode 。

另请参阅 statusCode() 。

QOpcUa::UaStatusCode QOpcUaHistoryEvent::statusCode() const

返回状态代码，表示在获取历史事件时是否发生错误。

另请参阅 setStatusCode().

`[noexcept]` void QOpcUaHistoryEvent::swap(QOpcUaHistoryEvent &other)

将历史事件对象other 与此历史事件对象互换。该操作速度非常快，而且不会失败。

`[noexcept]` QOpcUaHistoryEvent &QOpcUaHistoryEvent::operator=(QOpcUaHistoryEvent &&other)

移动--将other 赋值给此QOpcUaHistoryEvent 实例。

注意： 从移动对象other 将处于部分形成状态，其中唯一有效的操作是销毁和赋新值。

QOpcUaHistoryEvent &QOpcUaHistoryEvent::operator=(const QOpcUaHistoryEvent &other)

设置此历史事件项目中other 的值。

QOpcUaHistoryEvent Class

公共函数

详细描述

成员函数文档

QOpcUaHistoryEvent::QOpcUaHistoryEvent()

`[explicit]` QOpcUaHistoryEvent::QOpcUaHistoryEvent(const QString &nodeId)

QOpcUaHistoryEvent::QOpcUaHistoryEvent(const QOpcUaHistoryEvent &other)

`[noexcept]` QOpcUaHistoryEvent::QOpcUaHistoryEvent(QOpcUaHistoryEvent &&other)

`[noexcept]` QOpcUaHistoryEvent::~QOpcUaHistoryEvent()

void QOpcUaHistoryEvent::addEvent(const QVariantList &value)

int QOpcUaHistoryEvent::count() const

QList<QVariantList> QOpcUaHistoryEvent::events() const

QString QOpcUaHistoryEvent::nodeId() const

void QOpcUaHistoryEvent::setNodeId(const QString &nodeId)

void QOpcUaHistoryEvent::setStatusCode(QOpcUa::UaStatusCode statusCode)

QOpcUa::UaStatusCode QOpcUaHistoryEvent::statusCode() const

`[noexcept]` void QOpcUaHistoryEvent::swap(QOpcUaHistoryEvent &other)

`[noexcept]` QOpcUaHistoryEvent &QOpcUaHistoryEvent::operator=(QOpcUaHistoryEvent &&other)

QOpcUaHistoryEvent &QOpcUaHistoryEvent::operator=(const QOpcUaHistoryEvent &other)

相关非会员

`[noexcept]` bool operator!=(const QOpcUaHistoryEvent &lhs, const QOpcUaHistoryEvent &rhs)

`[noexcept]` bool operator==(const QOpcUaHistoryEvent &lhs, const QOpcUaHistoryEvent &rhs)

QOpcUaHistoryEvent Class

公共函数

相关非成员

详细描述

成员函数文档

QOpcUaHistoryEvent::QOpcUaHistoryEvent()

[explicit] QOpcUaHistoryEvent::QOpcUaHistoryEvent(const QString &nodeId)

QOpcUaHistoryEvent::QOpcUaHistoryEvent(const QOpcUaHistoryEvent &other)

[noexcept] QOpcUaHistoryEvent::QOpcUaHistoryEvent(QOpcUaHistoryEvent &&other)

[noexcept] QOpcUaHistoryEvent::~QOpcUaHistoryEvent()

void QOpcUaHistoryEvent::addEvent(const QVariantList &value)

int QOpcUaHistoryEvent::count() const

QList<QVariantList> QOpcUaHistoryEvent::events() const

QString QOpcUaHistoryEvent::nodeId() const

void QOpcUaHistoryEvent::setNodeId(const QString &nodeId)

void QOpcUaHistoryEvent::setStatusCode(QOpcUa::UaStatusCode statusCode)

QOpcUa::UaStatusCode QOpcUaHistoryEvent::statusCode() const

[noexcept] void QOpcUaHistoryEvent::swap(QOpcUaHistoryEvent &other)

[noexcept] QOpcUaHistoryEvent &QOpcUaHistoryEvent::operator=(QOpcUaHistoryEvent &&other)

QOpcUaHistoryEvent &QOpcUaHistoryEvent::operator=(const QOpcUaHistoryEvent &other)

相关非会员

[noexcept] bool operator!=(const QOpcUaHistoryEvent &lhs, const QOpcUaHistoryEvent &rhs)

[noexcept] bool operator==(const QOpcUaHistoryEvent &lhs, const QOpcUaHistoryEvent &rhs)

`[explicit]` QOpcUaHistoryEvent::QOpcUaHistoryEvent(const QString &nodeId)

`[noexcept]` QOpcUaHistoryEvent::QOpcUaHistoryEvent(QOpcUaHistoryEvent &&other)

`[noexcept]` QOpcUaHistoryEvent::~QOpcUaHistoryEvent()

`[noexcept]` void QOpcUaHistoryEvent::swap(QOpcUaHistoryEvent &other)

`[noexcept]` QOpcUaHistoryEvent &QOpcUaHistoryEvent::operator=(QOpcUaHistoryEvent &&other)

`[noexcept]` bool operator!=(const QOpcUaHistoryEvent &lhs, const QOpcUaHistoryEvent &rhs)

`[noexcept]` bool operator==(const QOpcUaHistoryEvent &lhs, const QOpcUaHistoryEvent &rhs)