The TLineCapStyle enumerated type is used to specify the how lines are terminated on a TCanvasElement instance.
Element
Description
csButt
Specifies that lines should have no cap. The end of the lines will be straight and perpendicular to the direction of the lines, and the lines are not extended beyond their endpoint.
csRound
Specifies that lines should be capped with a semicircle whose diameter is equal to the width of the line. This semicircle extends beyond the end of the line by one half of the width of the line.
csSquare
Specifies that lines should be capped with a rectangle. This is just like the csButt member, but the lines are extended by half of their width past their endpoint.