QOpcUaLiteralOperand Class

OPC UA LiteralOperand 类型。 更多...

头：	#include <QOpcUaLiteralOperand>
CMake:	find_package(Qt6 REQUIRED COMPONENTS OpcUa) target_link_libraries(mytarget PRIVATE Qt6::OpcUa)
qmake:	QT += opcua

• 所有成员列表，包括继承成员

公共函数

	QOpcUaLiteralOperand ()
	QOpcUaLiteralOperand (const QVariant & value , QOpcUa::Types type = QOpcUa::Types::Undefined)
	QOpcUaLiteralOperand (const QOpcUaLiteralOperand & rhs )
void	setType (QOpcUa::Types type )
void	setValue (const QVariant & value )
QOpcUa::Types	type () const
QVariant	value () const
QVariant	operator QVariant () const
QOpcUaLiteralOperand &	operator= (const QOpcUaLiteralOperand & rhs )

相关非成员

(从 6.7 起) bool	operator!= (const QOpcUaLiteralOperand & lhs , const QOpcUaLiteralOperand & rhs )
(从 6.7 起) bool	operator== (const QOpcUaLiteralOperand & lhs , const QOpcUaLiteralOperand & rhs )

详细描述

The LiteralOperand is defined in OPC UA 1.05 part 4, 7.7.4.3. It contains a literal value that is to be used as operand.

成员函数文档编制

QOpcUaLiteralOperand:: QOpcUaLiteralOperand ()

Default constructs a literal operand with no parameters set.

QOpcUaLiteralOperand:: QOpcUaLiteralOperand (const QVariant & value , QOpcUa::Types type = QOpcUa::Types::Undefined)

Constructs a literal operand of value value and type type .

QOpcUaLiteralOperand:: QOpcUaLiteralOperand (const QOpcUaLiteralOperand & rhs )

Constructs a literal operand from rhs .

void QOpcUaLiteralOperand:: setType ( QOpcUa::Types type )

Sets the type of the value of the literal operand to type .

另请参阅 type ().

void QOpcUaLiteralOperand:: setValue (const QVariant & value )

Sets the value of the literal operand to value .

另请参阅 value ().

QOpcUa::Types QOpcUaLiteralOperand:: type () const

Returns the type of the value of the literal operand.

另请参阅 setType ().

QVariant QOpcUaLiteralOperand:: value () const

Returns the value of the literal operand.

另请参阅 setValue ().

QVariant QOpcUaLiteralOperand:: operator QVariant () const

Converts this literal operand to QVariant .

QOpcUaLiteralOperand &QOpcUaLiteralOperand:: operator= (const QOpcUaLiteralOperand & rhs )

设置值从 rhs 在此 QOpcUaLiteralOperand .

相关非成员

[noexcept, since 6.7] bool operator!= (const QOpcUaLiteralOperand & lhs , const QOpcUaLiteralOperand & rhs )

返回 true if lhs has a different value than rhs .

该函数在 Qt 6.7 引入。

[noexcept, since 6.7] bool operator== (const QOpcUaLiteralOperand & lhs , const QOpcUaLiteralOperand & rhs )

返回 true if lhs has the same value as rhs .

该函数在 Qt 6.7 引入。

内容

• 公共函数

• 相关非成员

• 详细描述