Function winapi::um::fileapi::UnlockFileEx

pub unsafe extern "system" fn UnlockFileEx(
    hFile: HANDLE, 
    dwReserved: DWORD, 
    nNumberOfBytesToUnlockLow: DWORD, 
    nNumberOfBytesToUnlockHigh: DWORD, 
    lpOverlapped: LPOVERLAPPED
) -> BOOL