GetRoi

Gets the coordinates of the region of interest (ROI) within the image.

Syntax

Definition:

HRESULT GetRoi(
    HRESULT              hrPrev,
    ITcVnImage*          ipSrcImage,
    TcVnRectangle_UDINT& stRoi
)

Parameters

Name

Type

Description

hrPrev

HRESULT

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

ipSrcImage

ITcVnImage*

Source image

stRoi

TcVnRectangle_UDINT&

Returns the coordinates of the region of interest

GetRoi 1: Return value

HRESULT

Required License

TC3 Vision Base

System Requirements

Development environment

Target platform

PLC libraries to include

TwinCAT V3.1.4024.59 or later

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

Tc3_Vision