F_VN_ConvertITcUnknownToITcVnImage
Convert an ITcUnknown interface pointer to an ITcVnImage interface pointer. The destination pointer will be released (if existing) and set to the source pointer. The source pointer will be set to 0.
Syntax
Definition:
FUNCTION F_VN_ConvertITcUnknownToITcVnImage : HRESULT
VAR_INPUT
ipSrc : Reference To ITcUnknown;
ipDest : Reference To ITcVnImage;
hrPrev : HRESULT;
END_VAR
Inputs
|
Name |
Type |
Description |
|---|---|---|
|
ipSrc |
Reference To ITcUnknown |
Source pointer |
|
ipDest |
Reference To ITcVnImage |
Destination pointer |
|
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 V3.1.4024.54 or later | PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU | Tc3_Vision |