pub unsafe extern "system" fn GetDeltaSignatureB(
filetypeset: i64,
hashalgid: ALG_ID,
source: DELTA_INPUT,
lphash: *mut DELTA_HASH,
) -> BOOL
pub unsafe extern "system" fn GetDeltaSignatureB(
filetypeset: i64,
hashalgid: ALG_ID,
source: DELTA_INPUT,
lphash: *mut DELTA_HASH,
) -> BOOL