F_VN_GetAt_TcVnKeyPoint

Gets the TcVnKeyPoint element at the specified index of the container.

Syntax

Definition:

FUNCTION F_VN_GetAt_TcVnKeyPoint : HRESULT
VAR_INPUT
    ipContainer : ITcVnContainer;
END_VAR
VAR_IN_OUT
    stElement   : TcVnKeyPoint;
END_VAR
VAR_INPUT
    nIndex      : ULINT;
    hrPrev      : HRESULT;
END_VAR

Inputs

Name	Type	Description
ipContainer	ITcVnContainer	Container with TcVnKeyPoint elements
nIndex	ULINT	Index of the requested element
hrPrev	HRESULT	HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)

In/Outputs

Name	Type	Description
stElement	TcVnKeyPoint	Returns the element at the specified index

Return value

HRESULT

Required License

TC3 Vision Base

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