F_VN_ExportImageAsBmpSizeExp
Get the required buffer size (in bytes) to store the image as bitmap. (expert function)
Syntax
Definition:
FUNCTION F_VN_ExportImageAsBmpSizeExp : HRESULT
VAR_INPUT
ipImage : ITcVnImage;
END_VAR
VAR_IN_OUT
nBufferSize : ULINT;
END_VAR
VAR_INPUT
nWidth : UDINT;
nHeight : UDINT;
hrPrev : HRESULT;
END_VAR
Inputs
|
Name |
Type |
Description |
|---|---|---|
|
ipImage |
Image | |
|
nWidth |
UDINT |
Desired width (or 0 to keep the original width) |
|
nHeight |
UDINT |
Desired height (or 0 to keep the original height) |
|
hrPrev |
HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) |
In/Outputs
|
Name |
Type |
Description |
|---|---|---|
|
nBufferSize |
ULINT |
Returns the required buffer size in bytes |
Return valueRequired 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 |