Draw a subrectangle of the image in the format as Librasterworks

[qullarwee]

Hello.
I am writing in C. I have a buffer that I drew on with librasterworks, and now I want to draw any of its subrectangles. This cannot be done with SysFn7. I have only one option: to run a two-dimensional loop over the desired subrectangle and do a SetPixel, but I think that would be bad from a performance point of view. Are there any better ways?

[dunkaist]

Hi qullarwee,

Look at SysFn65. Its params may seem tricky though.

[qullarwee]

It works. Thank you.