DrawPoint

Draw a point.

Syntax

Definition:

HRESULT DrawPoint(
    HRESULT            hrPrev,
    ULONG              nX,
    ULONG              nY,
    ITcVnImage*        ipDestImage,
    ETcVnDrawShape     eShape,
    TcVnVector4_LREAL& aColor,
    ULONG              nSize = 3,
    LONG               nThickness = 1,
    ETcVnLineType      eLineType = LT_8_CONNECTED
)

Parameters

Name

Type

Default

Description

hrPrev

HRESULT

 

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

nX

ULONG

 

x coordinate of the point

nY

ULONG

 

y coordinate of the point

ipDestImage

ITcVnImage*

 

Destination image

eShape

ETcVnDrawShape

 

Point shape

aColor

TcVnVector4_LREAL&

 

Color (for {-1, -1, -1, -1}, a random color is chosen)

nSize

ULONG

3

Size of the shape (half width)

nThickness

LONG

1

Line thickness (if negative, the shape is filled if it is closed)

eLineType

ETcVnLineType

LT_8_CONNECTED

Line type

DrawPoint 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