pub type LPPROGRESS_ROUTINE = Option<unsafe extern "system" fn(totalfilesize: i64, totalbytestransferred: i64, streamsize: i64, streambytestransferred: i64, dwstreamnumber: u32, dwcallbackreason: LPPROGRESS_ROUTINE_CALLBACK_REASON, hsourcefile: HANDLE, hdestinationfile: HANDLE, lpdata: *const c_void) -> u32>;
enum LPPROGRESS_ROUTINE {
None,
Some(unsafe extern "system" fn(_: i64, _: i64, _: i64, _: i64, _: u32, _: LPPROGRESS_ROUTINE_CALLBACK_REASON, _: HANDLE, _: HANDLE, _: *const c_void) -> u32),
}