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 V3.1.4024.54 or later

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

Tc3_Vision