F_VN_ConvertITcUnknownToITcVnContainer

F_VN_ConvertITcUnknownToITcVnContainer 1:

Convert an ITcUnknown interface pointer to an ITcVnContainer interface pointer. The destination pointer will be released (if existing) and set to the source pointer. The source pointer will be set to 0.

Syntax

Definition:

FUNCTION F_VN_ConvertITcUnknownToITcVnContainer : HRESULT
VAR_INPUT
    ipSrc  : Reference To  ITcUnknown;
    ipDest : Reference To  ITcVnContainer;
    hrPrev : HRESULT;
END_VAR

F_VN_ConvertITcUnknownToITcVnContainer 2: Inputs

Name

Type

Description

ipSrc

Reference To ITcUnknown

Source pointer

ipDest

Reference To ITcVnContainer

Destination pointer

hrPrev

HRESULT

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

F_VN_ConvertITcUnknownToITcVnContainer 3: 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