hi,i am looking for any sample about load a image then draw a circle area with mouse for crop and then save that circle area as png or jpg,i know i can do that with cairo or wia but i found jst sample about crop or save any body can help about do that with cairo or wia,i dont know how can crop circle with wia (maybe need mask effecr idk) and save it or how can do that all of theme with cairo

for example i found these :
https://www.cairographics.org/samples/
https://www.vbforums.com/showthread....From-A-Picture

i need a simple sample