Specifies how to render the junction of two lines when stroking.
The default line join style is GSK_LINE_JOIN_MITER.
GSK_LINE_JOIN_MITER
New entries may be added in future versions.
4.14
Use a sharp angled corner
Use a round join, the center of the circle is the join point
use a cut-off join, the join is cut off at half the line width from the joint 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.