DrawLine

Draws a line.

Syntax

Definition:

HRESULT DrawLine(
    HRESULT            hrPrev,
    ULONG              nX1,
    ULONG              nY1,
    ULONG              nX2,
    ULONG              nY2,
    ITcVnImage*        ipDestImage,
    TcVnVector4_LREAL& aColor,
    LONG               nThickness,
    ETcVnLineType      eLineType = LT_8_CONNECTED,
    ULONG              nShift = 0
)

Parameters

Name

Type

Default

Description

hrPrev

HRESULT

 

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

nX1

ULONG

 

x coordinate of the start point

nY1

ULONG

 

y coordinate of the start point

nX2

ULONG

 

x coordinate of the end point

nY2

ULONG

 

y coordinate of the end point

ipDestImage

ITcVnImage*

 

Destination image

aColor

TcVnVector4_LREAL&

 

Color

nThickness

LONG

 

Line thickness

eLineType

ETcVnLineType

LT_8_CONNECTED

Line type

nShift

ULONG

0

Fractional bits of the coordinates (bit shift)

DrawLine 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