DrawLine (TcVnVector4_LREAL)

Draws a line.

Syntax

Definition:

HRESULT DrawLine(
    HRESULT            hrPrev,
    TcVnVector4_LREAL& aLine,
    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.)

aLine

TcVnVector4_LREAL&

 

The first and second element describe the x and y component of the direction vector. The third and fourth element describe the x and y component of the position vector.

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 (TcVnVector4_LREAL) 1: Return value

HRESULT

Required License

TC3 Vision Base

System Requirements

Development environment

Target platform

PLC libraries to include

TwinCAT V3.1. 4024.44 or later

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

Tc3_Vision