内容

• 公共函数
• 详细描述

QOpcUaRange Class

The OPC UA Range type. 更多...

头：	#include <QOpcUaRange>
qmake:	QT += opcua

• 所有成员列表，包括继承成员

公共函数

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

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

设置值从 rhs in this range.

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 .

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

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