F_VN_ExportImageSize

F_VN_ExportImageSize 1:

Get the required buffer size (in bytes) to store the image data.

Syntax

Definition:

FUNCTION F_VN_ExportImageSize : HRESULT
VAR_INPUT
    ipImage     : ITcVnImage;
END_VAR
VAR_IN_OUT
    nBufferSize : ULINT;
END_VAR
VAR_INPUT
    hrPrev      : HRESULT;
END_VAR

F_VN_ExportImageSize 2: Inputs

Name

Type

Description

ipImage

ITcVnImage

Image

hrPrev

HRESULT

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

F_VN_ExportImageSize 3: In/Outputs

Name

Type

Description

nBufferSize

ULINT

Returns the required buffer size in bytes

F_VN_ExportImageSize 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