F_VN_DrawRectangle

F_VN_DrawRectangle 1:

Draw a rectangle.

Syntax

Definition:

FUNCTION F_VN_DrawRectangle : HRESULT
VAR_INPUT
    nTopLeftX     : UDINT;
    nTopLeftY     : UDINT;
    nBottomRightX : UDINT;
    nBottomRightY : UDINT;
    ipDestImage   : ITcVnImage;
END_VAR
VAR_IN_OUT
    aColor        : TcVnVector4_LREAL;
END_VAR
VAR_INPUT
    nThickness    : DINT;
    hrPrev        : HRESULT;
END_VAR

F_VN_DrawRectangle 2: Inputs

Name

Type

Description

nTopLeftX

UDINT

x coordinate of the top left corner

nTopLeftY

UDINT

y coordinate of the top left corner

nBottomRightX

UDINT

x coordinate of the bottom right corner

nBottomRightY

UDINT

y coordinate of the bottom right corner

ipDestImage

ITcVnImage

Destination image

nThickness

DINT

Line thickness (if negative, the rectangle is filled)

hrPrev

HRESULT

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

F_VN_DrawRectangle 3: In/Outputs

Name

Type

Description

aColor

TcVnVector4_LREAL

Color

F_VN_DrawRectangle 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