pub unsafe extern "C" fn cairo_surface_create_similar(
surface: *mut cairo_surface_t,
content: i32,
width: i32,
height: i32
) -> *mut cairo_surface_t
pub unsafe extern "C" fn cairo_surface_create_similar(
surface: *mut cairo_surface_t,
content: i32,
width: i32,
height: i32
) -> *mut cairo_surface_t