Specifies how to render the start and end points of contours or dashes when stroking.
The default line cap style is GSK_LINE_CAP_BUTT.
GSK_LINE_CAP_BUTT
New entries may be added in future versions.
4.14
Start and stop the line exactly at the start and end point
Use a round ending, the center of the circle is the start or end point
use squared ending, the center of the square is the start or end point
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
Returns an array containing the constants of this enum type, in the order they're declared.