how can i thicken the borders of a circle in my C program?

Question

i used floodfill to fill circle with color, instead, it filled the whole screen. someone said i must thicken the borders of the circle but how? thanks.. if you may, please type in the parameter as well, thakns agen...

Answer 1

Click on the line tool and there you should be able to adjust the line thickness, once you adjust that should make the circles border thicker.