a cairo_t
a state
type of shadow to draw
the widget
a style detail
x origin of the rectangle
y origin of the rectangle
width of the rectangle
width of the rectangle
side in which to leave the gap
starting position of the gap
width of the gap
Deprecated: Use gtk_render_frame_gap() instead
Draws a box in cr using the given style and state and shadow type, leaving a gap in one side.