F_VN_CheckIfEmpty

F_VN_CheckIfEmpty 1:

Checks if the container is empty. (Alternatively use interface method .CheckIfEmpty.)

Syntax

Definition:

FUNCTION F_VN_CheckIfEmpty : HRESULT
VAR_INPUT
    ipContainer : ITcVnContainer;
    hrPrev      : HRESULT;
END_VAR

F_VN_CheckIfEmpty 2: Inputs

Name

Type

Description

ipContainer

ITcVnContainer

Container

hrPrev

HRESULT

HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)

F_VN_CheckIfEmpty 3: Return value

HRESULT

Required License

TC3 Vision Base

System Requirements

Development environment

Target platform

PLC libraries to include

TwinCAT V3.1. 4024.44 or later

PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU

Tc3_Vision