F_VN_ExportImageAsBmpExp
Exports the image as bitmap into a given buffer (e.g. an array). F_VN_ExportImageAsBmpSizeExp should be called before to get the required buffer size. (expert function)
Can use available TwinCAT Job Tasks for executing parallel code regions.
Syntax
Definition:
FUNCTION F_VN_ExportImageAsBmpExp : HRESULT
VAR_INPUT
ipImage : ITcVnImage;
pBuffer : PVOID;
nBufferSize : ULINT;
nWidth : UDINT;
nHeight : UDINT;
hrPrev : HRESULT;
END_VAR
Inputs
|
Name |
Type |
Description |
|---|---|---|
|
ipImage |
Image | |
|
pBuffer |
PVOID |
Pointer to a buffer to store the bitmap image (Make sure to allocate enough memory! The required size in bytes can be determined using the function F_VN_ExportImageAsBmpSizeExp) |
|
nBufferSize |
ULINT |
Size of the buffer memory in bytes |
|
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.) |
Return valueRequired License
TC3 Vision Base