Here is a list of all class members with links to the classes they belong to:

### - u -

- UIDL : PPOP3
- UInteger32 : PASNObject
- UnAuthorised : PHTTP
- Unavailable : XMPP::Presence
- UnChecked : PHTML
- Unconstrained : PASN_Object
- underflow() : PChannelStreamBuffer
- Underline() : PHTML::Underline
- unempty : PQueueChannel
- unfull : PQueueChannel
- Uninitialised : PModem
- UninitialisedStandAlone : PXMLBase
- Union() : PAbstractSet
- units : PHTTPIntegerField
- UniversalBitString : PASN_Object
- UniversalBMPString : PASN_Object
- UniversalBoolean : PASN_Object
- UniversalEmbeddedPDV : PASN_Object
- UniversalEnumeration : PASN_Object
- UniversalExternalType : PASN_Object
- UniversalGeneralisedTime : PASN_Object
- UniversalGeneralizedTime : PASN_Object
- UniversalGeneralString : PASN_Object
- UniversalGraphicString : PASN_Object
- UniversalIA5String : PASN_Object
- UniversalInteger : PASN_Object
- UniversalNull : PASN_Object
- UniversalNumericString : PASN_Object
- UniversalObjectDescriptor : PASN_Object
- UniversalObjectId : PASN_Object
- UniversalOctetString : PASN_Object
- UniversalPrintableString : PASN_Object
- UniversalReal : PASN_Object
- UniversalSequence : PASN_Object
- UniversalSet : PASN_Object
- UniversalTagClass : PASN_Object
- UniversalTags : PASN_Object
- UniversalTeletexString : PASN_Object
- UniversalUniversalString : PASN_Object
- UniversalUTCTime : PASN_Object
- UniversalVideotexString : PASN_Object
- UniversalVisibleString : PASN_Object
- Unknown : XMPP::Roster, XMPP::MUC::User, XMPP::IQ, XMPP::Presence, XMPP::Message, PODBC, PASNObject
- Unknown_a : XMPP::MUC::User
- UnknownExtensionsDecode() : PASN_Sequence
- UnknownExtensionsDecodeBER() : PASN_Sequence
- UnknownExtensionsDecodePER() : PASN_Sequence
- UnknownExtensionsDecodeXER() : PASN_Sequence
- UnknownExtensionsEncode() : PASN_Sequence
- UnknownExtensionsEncodeBER() : PASN_Sequence
- UnknownExtensionsEncodePER() : PASN_Sequence
- UnknownExtensionsEncodeXER() : PASN_Sequence
- UnknownFileType : PFileInfo
- UnknownMethod : PXMLRPC
- UnknownNat : PSTUNClient
- UnknownOption() : PArgList
- UnknownStandAlone : PXMLBase
- UnknownUser : PSMTPServer, PMail
- UnlessTrue : PHTTP
- UnloadingPlugIn : PPluginManager
- Unlock() : PSafeLockReadWrite, PSafeLockReadOnly
- UnlockPtr() : PSafePtrMultiThreaded, PSafePtrBase
- UnlockReadOnly() : PSafeObject
- UnlockReadWrite() : PSafeObject
- UnLockVXMLChannel() : PVXMLSession
- UnmatchedBrace : PRegularExpression
- UnmatchedBracket : PRegularExpression
- UnmatchedParen : PRegularExpression
- UnmatchedRParen : PRegularExpression
- Unopened : PModem
- UnRead() : PInternetProtocol
- unReadBuffer : PInternetProtocol
- unReadCount : PInternetProtocol
- Unregister() : PFactory< AbstractClass, KeyType >
- Unregister_Internal() : PFactory< AbstractClass, KeyType >
- UnregisterAll() : PFactory< AbstractClass, KeyType >
- UnregisterAll_Internal() : PFactory< AbstractClass, KeyType >
- UnregisterNotifiee() : PSmartNotifieeRegistrar
- Unsigned : PString
- Unsubscribe : XMPP::Presence
- Unsubscribed : XMPP::Presence
- UntranslateString() : PURL
- Unused : _DnsRecordFlags
- UpdateHeader() : PWAVFile, PWAVFileFormat
- UpdateThreadMain() : PInterfaceMonitor
- upperLimit : PASN_ConstrainedObject
- URIOnly : PURL
- URIValue() : PvCard::URIValue
- url : PXMLRPC, PSOAPClient, PHTTPRequest, PHTTPConnectionInfo
- UrlFormat : PURL
- urlSpace : PHTTPServer
- urlString : PURL
- Use3270RegimeOption : PTelnetSocket
- UseCertificate() : PSSLChannel, PSSLContext
- used : MXRecord, PDNS::SRVRecord
- UseDiffieHellman() : PSSLContext
- UseDMA : PVideoInput1394DcDevice
- UsePrivateKey() : PSSLChannel, PSSLContext
- UseProxy : PHTTP
- USER : PPOP3, PFTP
- User : XMPP::MUC::User, PODBC::ConnectData
- UserAgentTag() : PHTTP
- UserExecute : PFileInfo
- UserFault : PXMLRPC
- username : PURL, PPOP3Server, PHTTPSimpleAuth, PHTTPClientAuthentication
- userName : PFTPServer, PRemoteConnection
- UserRead : PFileInfo
- users : PHTTPMultiSimpAuth
- UserWrite : PFileInfo
- UseSASL : PPOP3Client
- UseX3PADOption : PTelnetSocket
- UTC : PTime