Gtkrender_arrow

void
gtk_render_arrow (
  GtkStyleContext* context,
  cairo_t* cr,
  double angle,
  double x,
  double y,
  double size
)

Renders an arrow pointing to angle.

Typical arrow rendering at 0, 1⁄2 π;, π; and 3⁄2 π:

`context`	`GtkStyleContext`
	A `GtkStyleContext`
	The data is owned by the caller of the function.
`cr`	`cairo_t*`
	A `cairo_t`
	The data is owned by the caller of the function.
`angle`	`double`
	Arrow angle from 0 to 2 * `G_PI`, being 0 the arrow pointing to the north.
`x`	`double`
	X origin of the render area.
`y`	`double`
	Y origin of the render area.
`size`	`double`
	Square side for render area.