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 V3.1.4024.54 or later

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

Tc3_Vision