F_VN_CreateImage
Creates an image and allocate an appropriate data buffer. The initial reference count is set to one if a new image interface is created and kept, otherwise.
Syntax
Definition:
FUNCTION F_VN_CreateImage : HRESULT
VAR_INPUT
ipImage : Reference To ITcVnImage;
nWidth : UDINT;
nHeight : UDINT;
ePixelType : ETcVnElementType;
nChannelNum : UDINT;
hrPrev : HRESULT;
END_VAR
Inputs
|
Name |
Type |
Description |
|---|---|---|
|
ipImage |
Reference To ITcVnImage |
Returns the created image (Non-zero interface pointers are reused.) |
|
nWidth |
UDINT |
Image width |
|
nHeight |
UDINT |
Image height |
|
ePixelType |
Pixel type | |
|
nChannelNum |
UDINT |
Number of channels (1 to 255) |
|
hrPrev |
HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) |
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 |