How to copy a rectangular region of one image into another image?

[elgonzo]

I want to copy a rectangular region of one image (not the whole image, just a part of it) into another image with alpha blending. The target X,Y coordinates the region should be copied to are different from the original X,Y coordinates of the region. The pixel formats of both images is Bgra32. No scaling or other transformation required.

How would this be done with ImageSharp?

I can't for the life of me not figure out how to do something simple like that with ImageSharp and i feel i must be missing something obvious. I failed to find anything in the API docs (to be honest, i kinda got lost in all these many [edit: classes with extension methods in the various] namespaces, so maybe i overlooked something?) and the sample code does not cover this task.

EDIT: Two weeks later. He's dead, Jim... 💀