ITcVnIteratorBase

Offers a base interface for iterators

Inheritance Hierarchy

ITcUnknown
ITcVnIteratorBase

Methods

Name	Origin	Description
TcAddRef	ITcUnknown	Increments the reference counter.
TcQueryInterface	ITcUnknown	Get a reference to an implemented interface.
TcRelease	ITcUnknown	Decrements the reference counter.
CheckIfBegin	ITcVnIteratorBase	Checks if the iterator points to the first element.
CheckIfEnd	ITcVnIteratorBase	Checks if the iterator points to the past-the-end element (alternatively use F_VN_CheckIfIteratorIsAtEnd).
GetValueSize	ITcVnIteratorBase	Gets the memory size (in byte) required by the value the iterator points to.
GetValueTypeGuid	ITcVnIteratorBase	Gets the type GUID of the value the iterator points to.
SetToBegin	ITcVnIteratorBase	Sets the iterator to the first element (alternatively use F_VN_SetIteratorToBegin).
SetToEnd	ITcVnIteratorBase	Sets the iterator to the past-the-end element.

System Requirements

Development environment	Target platform	PLC libraries to include
TwinCAT V3.1.4024.54 or later	PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU	Tc3_Vision

Further Information