F_VN_DrawPoint

F_VN_DrawPoint 1:

Draws a point.

Syntax

Definition:

FUNCTION F_VN_DrawPoint : HRESULT
VAR_INPUT
    nX          : UDINT;
    nY          : UDINT;
    ipDestImage : ITcVnImage;
    eShape      : ETcVnDrawShape;
END_VAR
VAR_IN_OUT
    aColor      : TcVnVector4_LREAL;
END_VAR
VAR_INPUT
    hrPrev      : HRESULT;
END_VAR

F_VN_DrawPoint 2: Inputs

Name

Type

Description

nX

UDINT

x coordinate of the point

nY

UDINT

y coordinate of the point

ipDestImage

ITcVnImage

Destination image

eShape

ETcVnDrawShape

Point shape

hrPrev

HRESULT

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

F_VN_DrawPoint 3: In/Outputs

Name

Type

Description

aColor

TcVnVector4_LREAL

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

F_VN_DrawPoint 4: 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