Function gtk_sys::gtk_render_frame_gap

pub unsafe extern "C" fn gtk_render_frame_gap(
    context: *mut GtkStyleContext, 
    cr: *mut cairo_t, 
    x: c_double, 
    y: c_double, 
    width: c_double, 
    height: c_double, 
    gap_side: GtkPositionType, 
    xy0_gap: c_double, 
    xy1_gap: c_double
)