F_VN_ExportImage
Exports the image data into a given buffer (e.g. an array). F_VN_ExportImageSize should be called before to get the required buffer size.
Syntax
Definition:
FUNCTION F_VN_ExportImage : HRESULT
VAR_INPUT
ipImage : ITcVnImage;
pBuffer : PVOID;
nBufferSize : ULINT;
hrPrev : HRESULT;
END_VAR
Inputs
|
Name |
Type |
Description |
|---|---|---|
|
ipImage |
Image | |
|
pBuffer |
PVOID |
Pointer to a buffer to store the image data (Make sure to allocate enough memory! The required size in bytes can be determined using the function F_VN_ExportImageSize) |
|
nBufferSize |
ULINT |
Size of the buffer memory in bytes |
|
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 |