pub unsafe extern "C" fn gdk_surface_create_similar_surface(
surface: *mut GdkSurface,
content: cairo_content_t,
width: c_int,
height: c_int,
) -> *mut cairo_surface_t
pub unsafe extern "C" fn gdk_surface_create_similar_surface(
surface: *mut GdkSurface,
content: cairo_content_t,
width: c_int,
height: c_int,
) -> *mut cairo_surface_t