Function gdk_sys::gdk_cairo_draw_from_gl

pub unsafe extern "C" fn gdk_cairo_draw_from_gl(
    cr: *mut cairo_t, 
    window: *mut GdkWindow, 
    source: c_int, 
    source_type: c_int, 
    buffer_scale: c_int, 
    x: c_int, 
    y: c_int, 
    width: c_int, 
    height: c_int
)