Foxit PDF SDK

### - u -

- Unlock : FXMEM_SystemMgr
- uri : foxit::pdf::WrapperData
- URL : foxit::PlayerArgs
- usage : foxit::ofd::AttachmentInfo
- used_count : foxit::addon::compliance::FixupData
- user : foxit::MenuItemConfig , FXMEM_SystemMgr
- user_login : foxit::ofd::ofdseal::VerifyExtendInfo
- user_permissions : foxit::pdf::DRMEncryptData , foxit::pdf::StdEncryptData
- username : foxit::SOAPAuthenticateInfo
- utc_hour_offset : foxit::DateTime
- utc_minute_offset : foxit::DateTime