wenluderen and FanSun
Excuse me for the tardy reply. According to Halcons docs halcondotnet.dll is able to work with images smaller than 32k x 32k. halcondotnetxl.dll has no size limitations and optimized to work with large images. But even when I switch to XL library, Halcon window control still stays blank. So, the image size is not the reason here. It seems that my "hackish" way of pointer manipulations does not work here because LabVIEW disposes the array pointer too early. That's why Halcon cannot create proper image from that pointer. I see the only solution here:
@dadreamer wrote:
If you are afraid of such method you may use LabVIEW Memory Manager functions. The sequence of calls is that:
1) allocate enough memory with DSNewPtr / DSNewPClr function;
2) move the image data from the array into newly created memory with MoveBlock function;
3) use that memory pointer anywhere you want;
4) release the memory with DSDisposePtr function.
This way is 100% safe and clear but it entails three additional operations and one extra copy of the initial array.
So, I checked out and it works! Even with very large images. I hope you're able to alter the BD on your own for it. If you're not, then I will post new VI by the request.
