Draws a horizontal line from (x1, y) to (x2, y) in cr using the given style and state.
a gtk.Style
a caio_t
a state
the widget
a style detail
the starting x coordinate
the ending x coordinate
the y coordinate
Deprecated: Use gtk_render_line() instead
Draws a horizontal line from (x1, y) to (x2, y) in cr using the given style and state.