GetPixel

Gets a specific pixel.

Syntax

Definition:

HRESULT GetPixel(
    HRESULT            hrPrev,
    ITcVnImage*        ipSrcImage,
    TcVnVector4_LREAL& aValue,
    ULONG              nX,
    ULONG              nY
)

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

aValue

TcVnVector4_LREAL&

Returns the pixel value (Unused channels are set to 0.)

nX

ULONG

x coordinate of the pixel

nY

ULONG

y coordinate of the pixel

GetPixel 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