Function libvips::bindings::im_vips2bufpng

pub unsafe extern "C" fn im_vips2bufpng(
    in_: *mut VipsImage, 
    out: *mut VipsImage, 
    compression: c_int, 
    interlace: c_int, 
    obuf: *mut *mut c_char, 
    olen: *mut size_t
) -> c_int