F_VN_GetPixel
Gets a specific pixel.
Syntax
Definition:
FUNCTION F_VN_GetPixel : HRESULT
VAR_INPUT
ipSrcImage : ITcVnImage;
END_VAR
VAR_IN_OUT
aValue : TcVnVector4_LREAL;
END_VAR
VAR_INPUT
nX : UDINT;
nY : UDINT;
hrPrev : HRESULT;
END_VAR
Inputs
|
Name |
Type |
Description |
|---|---|---|
|
ipSrcImage |
Source image | |
|
nX |
UDINT |
x coordinate of the pixel |
|
nY |
UDINT |
y coordinate of the pixel |
|
hrPrev |
HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) |
In/Outputs
|
Name |
Type |
Description |
|---|---|---|
|
aValue |
Returns the pixel value (Unused channels are set to 0.) |
Return valueRequired License
TC3 Vision Base