QOpcUaRange Class

The OPC UA Range type. 更多...

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

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公共函数

	QOpcUaRange ()
	QOpcUaRange (double low , double high )
	QOpcUaRange (const QOpcUaRange & rhs )
double	high () const
double	low () const
void	setHigh (double high )
void	setLow (double low )
QVariant	operator QVariant () const
QOpcUaRange &	operator= (const QOpcUaRange & rhs )
bool	operator== (const QOpcUaRange & rhs ) const

详细描述

This is the Qt OPC UA representation for the OPC UA Range type defined in OPC UA 1.05 part 8, 5.6.2. It consists of two double values which mark minimum and maximum of the range. Ranges are mostly used to store information about acceptable values for a node.

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QOpcUaRange:: QOpcUaRange ()

Default constructs a range with no parameters set.

QOpcUaRange:: QOpcUaRange ( double low , double high )

Constructs a range with low value low and high value high .

QOpcUaRange:: QOpcUaRange (const QOpcUaRange & rhs )

Constructs a range from rhs .

double QOpcUaRange:: high () const

Returns the high value of the range.

另请参阅 setHigh ().

double QOpcUaRange:: low () const

Returns the low value of the range.

另请参阅 setLow ().

void QOpcUaRange:: setHigh ( double high )

Sets the high value of the range to high .

另请参阅 high ().

void QOpcUaRange:: setLow ( double low )

Sets the low value of the range to low .

另请参阅 low ().

QVariant QOpcUaRange:: operator QVariant () const

Converts this range to QVariant .

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

设置值从 rhs in this range.

bool QOpcUaRange:: operator== (const QOpcUaRange & rhs ) const

返回 true if this range has the same value as rhs .