unit scope names - rad studio

5/25/2018 Unit Scope Names - RAD Studio

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Contents[hide]

1 Syntax and Description

2 Fully Qualified Names Must Include the Unit

Scope Name

2.1 How to Specify Unit-Scoped Unit Names

in Your Code

2.2 RAD Studio Uses Unit Scopes, and the

Help Also Uses Unit Scope Names

2.2.1 Example

3 Unit Scopes

4 Unit Scopes and the Units in Each Unit Scope

5 Units that Have No Unit Scope Name

6 Unit Names in Alphabetical Order with TheirUnit Scopes

7 Topics

8 See Also

Unit Scope Names

Go Up to Getting Started with RAD Studio

Unit scope namesare prefixes that are prepended to unit names in the VCL-FMX-RTL libraries. That is, names of units,

functions, classes, and members now have a unit scope name prepended to the unit name, as follows:

Syntax and Description

.. ...

For example, the SysUtilsunit is now part of the Systemunit scope, as follows:

System.SysUtils

and the Controlsunit is now partof the Vclunit scope:

Vcl.Controls

Unit scope names:

Classify units into basic groups such as Vcl, System, FMX, and so

forth (unit scopes are classified in Unit Scopes).

Ensure compatibility of the code that you write using the IDE.

Differentiate members whose names are ambiguous (that is, ensure

correct name resolution when a member's name matches the name

of a member of another unit).

Typically begin with a single uppercase letter followed by lowercase

letters (such as Vcl).

Are typically made up of one element (such as DataSnap),

although some are made up of two elements (such as

System.Win).

Third party products, such as Indy and TeeChart, are not unit-scoped.

When developing new code with third party components, adding unit

scope names is not necessary because added usesentries are

automatically scoped.

Component developerscan add unit scope names as described inAdding Unit Scope Names for Your Own Components.

Fully Qualified Names Must Include the Unit Scope Name

With one notable exception, legacy code should continue to work without changes. The one exception is scoped or

qualified identifiersin the code itself. Fully qualified identifier names now require unit scoping. This means that if you used

qualified identifiers in your existing code (which was not unit-scoped), changes are required in order to compile. You need to

add the unit scope name to the unit name.

For example, here is the fully qualified identifier of the TStreamclass that you might have specified in previous product

releases:

Classes.TStream

The name Classes.TStreamis no longer considered to be a fully qualified class name because fully qualified names now

must be unit-scoped, that is, they must include the unit scope name. In this case, the unit scope name Systemmust be

added to the Classesunit name in order to yield a unit-scoped or fully qualified name, as follows:

In Delphi,the fully qualified identifier name for TStreamis:

System.Classes.TStream

In C++,unit scope names use the C++ scope operator (::). The fully qualified name for the TStreamclass in C++

code is:

System::Classes::TStream

Possible code changes:If your existing code contains qualified identifiers (such as Classes.TStream.Seek), you

must correct the name so that the identifier is unit-scoped and fully qualified (such as

System.Classes.TStream.Seek ).

How to Specify Unit-Scoped Unit Names in Your Code

For new development, you must specify the unit scope for units in your application. Choose any of the following ways to do

this:

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Everywhere:Fully qualify all names of all members throughout your code. Using full qualification, including unit scope

names, throughout your application ensures the fastest compile time.

Uses clause or #includes:Fully qualify unit names (with the unit scope and unit names) in the usesclause or

#include. Then in your code, you can partially qualify the names of members of those units that you fully qualified

(with unit scope) in the usesclause or #include.

In Project Options:Add the unit scope names in the Unit scope namesoption on the Delphi Compilerpage in Project

Options.

Caution:Using partially qualified namescan significantly slow down compile time because the compilers

must resolve all partially qualified names during a compile.

RAD Studio Uses Unit Scopes, and the Help Also Uses Unit Scope Names

The wizards and templates in RAD Studio now use and include properly unit-scoped unit names. In the help, some

instances of unit, class, and member names do not include the unit scope names. However, the VCL-FMX-RTL Libraries

documentationhas full unit scope names in the page titles.

Example

If your code contains:

uses System.SysUtils,System.Types,System.Classes,FMX.Controls;

or:

#include #include #include #include

In your code you can specify unqualified member names, such as:

GetPackageInfo // referring to System.SysUtils.GetPackageInfo TRect // referring to System.Types.TRect TNotifyEvent // referring to System.Classes.TNotifyEvent TTrackBar // referring to FMX.Controls.TTrackBar

Unit Scopes

There are more than a few unit scopes, but most of the unit scopes can be grouped into a few general categories, including

Vcl, Database, and System. The following table lists the general categories and the unit scope names in each category:

General Category Unit Scope Names in this Category

Database-related Bde, Data, Data.Bind, Data.Cloud, Datasnap, Datasnap.Win, IB (also

System.Bindings)

FireMonkey FMX, FMX.ASE, FMX.Bind, FMX.Canvas, FMX.DAE, FMX.Filter, FMX.Platform,

FMX.Printer

iOS iOSapi (RTL)

Mac OS X Macapi, Posix, System.Mac (RTL)

System-related (Run-Time

Library)

System, System.Bindings, System.Generics, System.Win

Vcl (Visual Component Library) Vcl, Vcl.Imaging, Vcl.Samples, Vcl.Shell, Vcl.Touch

SOAP, COM Soap

Web-related Web, Web.Win

Windows API Winapi(RTL)

XML processing Xml, Xml.Internal, Xml.Win

Ten unit scopes are FireMonkey (FMX, FMX.ASE, FMX.Bind, FMX.Canvas, FMX.DAE, FMX.Filter, FMX.ListView,

FMX.MediaLibrary, FMX.Platform, FMX.Printer).

The SOAP unit scope contains COM-related units.

The System unit scope has three unit scopes (System.Bindings, System.Generics, System.Win).

Four unit scopes are VCL related (Vcl, Vcl.Imaging, Vcl.Samples, Vcl.Touch).

Xml unit scope contains the four units related to XML processing, such as Xml.Win.msxmldom.


http://docwiki.embarcadero.com/Libraries/XE6/en/Xml.Win.msxmldomhttp://docwiki.embarcadero.com/Libraries/XE6/en/Xmlhttp://docwiki.embarcadero.com/Libraries/XE6/en/Winapihttp://docwiki.embarcadero.com/Libraries/XE6/en/Web.Winhttp://docwiki.embarcadero.com/Libraries/XE6/en/Webhttp://docwiki.embarcadero.com/Libraries/XE6/en/Soaphttp://docwiki.embarcadero.com/Libraries/XE6/en/Vcl.Touchhttp://docwiki.embarcadero.com/Libraries/XE6/en/Vcl.Sampleshttp://docwiki.embarcadero.com/Libraries/XE6/en/Vcl.Imaginghttp://docwiki.embarcadero.com/Libraries/XE6/en/Vclhttp://docwiki.embarcadero.com/Libraries/XE6/en/System.Winhttp://docwiki.embarcadero.com/Libraries/XE6/en/System.Genericshttp://docwiki.embarcadero.com/Libraries/XE6/en/System.Bindingshttp://docwiki.embarcadero.com/Libraries/XE6/en/Systemhttp://docwiki.embarcadero.com/Libraries/XE6/en/FMX.Printerhttp://docwiki.embarcadero.com/Libraries/XE6/en/FMX.Platformhttp://docwiki.embarcadero.com/Libraries/XE6/en/FMX.Filterhttp://docwiki.embarcadero.com/Libraries/XE6/en/FMX.DAEhttp://docwiki.embarcadero.com/Libraries/XE6/en/FMX.Canvashttp://docwiki.embarcadero.com/Libraries/XE6/en/FMX.Bindhttp://docwiki.embarcadero.com/Libraries/XE6/en/FMX.ASEhttp://docwiki.embarcadero.com/Libraries/XE6/en/FMXhttp://docwiki.embarcadero.com/Libraries/XE6/en/System.Bindingshttp://docwiki.embarcadero.com/Libraries/XE6/en/Datasnap.Winhttp://docwiki.embarcadero.com/Libraries/XE6/en/Datasnaphttp://docwiki.embarcadero.com/Libraries/XE6/en/Data.Cloudhttp://docwiki.embarcadero.com/Libraries/XE6/en/Data.Bindhttp://docwiki.embarcadero.com/Libraries/XE6/en/Datahttp://docwiki.embarcadero.com/Libraries/XE6/en/Bdehttp://docwiki.embarcadero.com/Libraries/XE6/en/Main_Pagehttp://docwiki.embarcadero.com/RADStudio/XE6/en/Delphi_Compiler


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Unit Scopes and the Units in Each Unit Scope

The following table lists the unit scope names, and the units that belong in each unit scope:

Unit Scope Name Units

Androidapi (RTL) AppGlue, AssetManager, AssetManagaerIni, Bitmap, Configuration, Consts, Egl, Eglext, EglPlatform

Gles, Gles2, Gles2ext, Glesext, Input, IOUtils, JNI.Analytics, JNI.ApkExpansion, JNI.App, JNI.Dalvik,

JNI.Embarcadero, JNI.GraphicsContentViewText, JNI.Hardware, JNI.InputMethodService,

JNI.JavaTypes, JNI.Licensing, JNI.Location, JNI.Media, JNI.Net, JNI.OpenGL, JNI.Os, Jni,

JNI.PlayServices, JNI.Provider, JNI.Support, JNI.Telephony, JNI.Util, JNI.VideoView, JNI.WebKit,

JNI.Widget, JNIBridge, JNIMarshal, Keycodes, KhrPlatform, Log, Looper, NativeActivity,

NativeWindow, NativeWindowJni, Obb, OpenSles, Rect, Sensor, StorageManager

Bde BDE, Bdeconst, DBBdeWeb, DbTables, DrTable, SMINTF

Data DB, DBByteBuffer, DBCommon, DBCommonTypes, DBConnAdmin, DBConsts, DBPlatform,

DBXClassRegistry, DBXClient, DBXClientResStrs, DBXCommon, DBXCommonIndy,

DBXCommonResStrs, DBXCommonTable, DbxCompressionFilter,

DBXDataExpressMetaDataProvider, DbxDatasnap, DBXDBReaders, DBXDelegate, DBXDynalink,

DBXDynalinkNative, DBXEncryption, DBXJSON, DBXJSONCommon, DBXJSONReflect,

DBXMemoryRow, DBXMessageHandlerCommon, DBXMessageHandlerJSonClient,

DBXMessageHandlerJSonCommon, DBXMessageHandlerJSonServer, DBXMessageHandlerServer,

DBXMetaDataCommand, DBXMetaDataCommandFactory, DBXMetadataCommon,

DBXMetaDataError, DBXMetaDataNames, DBXMetaDataProvider, DBXMetaDataReader,

DBXMetaDataUtil, DBXMetaDataWriter, DBXMetaDataWriterFactory, DBXOpenSSL,

DBXOpenSSLRes, DBXPlatform, DBXPool, DBXReaderTableStorage, DBXRSAFilter,

DbxSocketChannelNative, DBXSqlScanner, DBXStream, DBXStreamer, DBXStreamPlatform,

DBXTableFactory, DBXTrace, DBXTransport, DBXTransportFilter, DBXTypedTableStorage, DSUtil,

FMTBcd, SqlConst, SqlExpr, SqlTimSt, Win.ADODB

Data.Bind Components, Consts, DBLinks, DBScope, Editors, EngExt

Data.Cloud AmazonAPI, AzureAPI, Azure, AzureBlob, AzureMessageDialog, AzureQueueMetadataDialog,

AzureQueue, AzureTableDialog, AzureTableRowDialog, AzureTable, AzureUI

Datasnap DataBkr, DBClient, DSAuth, DSAzure, DSClientMetadata, DSClientResStrs, DSClientRest,

DSCommonProxy, DSCommonServer, DSCommonTable, DSConnect, DSHTTP, DSHTTPCommon,

DSHTTPLayer, DSHTTPServiceProxyDispatcher, DSHTTPWebBroker, DSLoginDlg, DSIntf,

DSNames, DSPlatform, DSProxy, DSProxyCpp, DSProxyCppRest, DSProxyDelphi,

DSProxyDelphiRest, DSProxyDispatcher, DSProxyRest, DSProxyWriter, DSProxyWriterRegistry,DSReflect, DSServer, DSServerResStrs, DSService, DSTCPServerTransport, DSTransport, Midas,

MidConst, Provider, Win.MConnect, Win.MidasCon, Win.MtsRdm, Win.ObjBrkr, Win.SConnect,

Win.TConnect

FMX

(FireMonkey

application

platform)

ActnList, ActnRes, Ani, ASE, Bind, Canvas, Colors, Controls, Controls3D, DAE, Dialogs, Edit,

Effects, ExtCtrls, Filter, Filter.Effects, Forms, Forms3D, Gestures, Grid, Header, Import,

InertialMovement, Layers3D, Layouts, ListBox, ListView, Materials, MaterialSources, Media,

MediaLibrary, Memo, Menus, Messages, Notification, Objects, Objects3D, PhoneDialer, Pickers,

PixelFormats, Platform, Printer, TabControl, Text, TextLayout, TreeView, Types, Types3D, Video,

VirtualKeyboard, WebBrowser

iOSapi (RTL) AssetsLibrary, AVFoundation, CocoaTypes, CoreAudio, CoreData, CoreGraphics, CoreImage,

CoreLocation, CoreMedia, CoreMotion, CoreTelephony, CoreText, CoreVideo, Foundation, GLKit,

MediaPlayer, OpenGLES, QuartzCore, UIKit

Macapi (RTL)

(Mac Objective-C

Frameworks)

AppKit, CocoaTypes, CoreFoundation, CoreServices, Foundation, Mach, ObjCRuntime, ObjectiveC,

OCMarshal, OpenGL, QuartzCore, Security, SystemConfiguration, VarObjC

Posix

(Mac OS X)

(RTL)

ArpaInet, Base, Dirent, Dlfcn, Errno, Fcntl, Fnmatch, Grp, Iconv, Langinfo, Limits, Locale, NetDB,

NetIf, NetinetIcmp6, NetinetIn, NetinetIp6, Posix, Pthread, Pwd, Sched, Semaphore, Signal, StdDef,

Stdio, Stdlib, String_, StrOpts, SysMman, SysSelect, SysSocket, SysStat, SysStatvfs, SysSysctl,

SysTime, SysTimes, Systypes, SysUio, SysWait, Termios, Time, Unistd, Utime, Wchar, Wctype,

Wordexp

Soap EncdDecd, HTTPSOAPTBind, HTTPUtil, inquire_vcl, IntfInfo, InvConst, Invoker, InvokeRegistry,

OPConvert, OPConvertOptions, OPToSOAPDomConv, OPToSOAPDomCustom, Rio, SOAInv,

SOAPAttach, SOAPAttachIntf, SOAPConn, SOAPConst, SOAPDm, SOAPDomConv,

SOAPHTTPClient, SOAPHTTPPasInv, SOAPHTTPTrans, SOAPLinked, SOAPMidas, TypeTrans,UDDIHelper, WebBrokerSOAP, WebNode, WebServerExp, WSDLBind, WSDLIntf, WSDLItems,

WSDLLookup, WSDLNode, WSDLPub, WSDLSOAP, WSILIntf, XSBuiltIns

SysInit See SysInitfor members.

System Actions, AnsiStrings, Bindings, Character, Classes, Contnrs, ConvUtils, DateUtils, Diagnostics,


http://docwiki.embarcadero.com/Libraries/XE6/en/Systemhttp://docwiki.embarcadero.com/Libraries/XE6/en/SysInithttp://docwiki.embarcadero.com/Libraries/XE6/en/SysInithttp://docwiki.embarcadero.com/Libraries/XE6/en/Soaphttp://docwiki.embarcadero.com/RADStudio/XE6/en/FireMonkey_Application_Platformhttp://docwiki.embarcadero.com/Libraries/XE6/en/FMXhttp://docwiki.embarcadero.com/Libraries/XE6/en/Datasnaphttp://docwiki.embarcadero.com/Libraries/XE6/en/Data.Cloudhttp://docwiki.embarcadero.com/Libraries/XE6/en/Data.Bindhttp://docwiki.embarcadero.com/Libraries/XE6/en/Datahttp://docwiki.embarcadero.com/Libraries/XE6/en/Bde


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Generics.Collections, Generics.Defaults, HelpIntfs, Inifiles, IOUtils, Masks, MaskUtils, Math,

ObjAuto, RegularExpressions, RegularExpressionsCore, Rtti, Sensors, StdConvs, StrUtils,

SyncObjs, SysUtils, TimeSpan, Types, TypInfo, UIConsts, UITypes, VarCmplx, VarConv, Variants,

VarUtils, WideStrings, WideStrUtils, Win, Zip, ZLib

System.Bindings CustomScope, CustomWrapper, EvalProtocol, Expression, ExpressionDefaults, Factories, Helper,

Manager, ManagerDefaults, Methods, Outputs

System.Win ComObj,Comserv, Mtsobj, ObjComAuto, Registry, ScktComp, VCLCom

Vcl

(VisualComponent

Library)

ActnColorMaps, ActnCtrls, ActnList, ActnMan, ActnMenus, ActnPopup, AppEvnts, AxCtrls,

BandActn, ButtonGroup, Buttons, Calendar, CaptionedDockTree, CategoryButtons, CheckLst,

Clipbrd, CmAdmCtl, ColorGrid, ComCtrls, Controls, CustomizeDlg, DBActns, DBCGrids,

DBClientActns, DBCtrls, DBGrids, DBLogDlg, DBLookup, DBOleCtl, DBPWDlg, DdeMan, Dialogs,

Direct2D, DockTabSet, ExtActns, ExtCtrls, ExtDlgs, FileCtrl, Forms, Graphics, GraphUtil, Grids,

HTMLHelpViewer, Imaging, ImgList, IMouse, ListActns, Mask, Menus, MPlayer, OleAuto, OleCntnrs,

OleCtrls, OleServer, Outline, PlatformDefaultStyleActnCtrls, Printers, Ribbon, RibbonActnCtrls,

RibbonActnMenus, RibbonGalleryBar, RibbonLunaStyleActnCtrls, RibbonObsidianStyleActnCtrls,

RibbonSilverStyleActnCtrls, RibbonStyleActnCtrls, Samples, ScreenTips, ShadowWnd,

ShellAnimations, StdActnMenus, StdActns, StdCtrls, StdStyleActnCtrls, Styles, SvcMgr, TabNotBk,

Tabs, ThemedActnCtrls, Themes, ToolWin, Touch, ValEdit, WinHelpViewer, XPActnCtrls, XPMan,

XPStyleActnCtrls

Web AutoDisp, BrkrConst, CGIApp, CGIHTTP, CGIHTTP, DBWeb, DBXpressWeb, DSProd, HTTPApp,

HTTPProd, WebBroker, WebCntxt, WebFileDispatcher, WebReq, Win

Winapi See Winapi.

Xml XMLDoc, xmldom, XMLIntf, Win.msxmldom

Units that Have No Unit Scope Name

The following units exist without unit scoping. These units do not require that you specify a unit scope name in the uses

clause or #include.

ActnRes

AdaptReq

AutoAdap

ComApp

CompProd

CtlPanel

DBAdapt

DBAdaptImg

DesignEditors

DesignIntf

DSAzure

IB, IBBlob, and all the other IB (InterBase) units

MidItems

MidProd

PagItems

PlatformAPI

ReqFiles

ReqMulti

SessColn

SHDocVw

SimpleDS

SiteComp

SiteProd

WebAdapt

WebComp

WebContnrs

WebDisp

WebFact

WebFormWebModu

WebScript

WebSess

WebUsers

XMLBrokr

XSLProd


http://docwiki.embarcadero.com/Libraries/XE6/en/Xmlhttp://docwiki.embarcadero.com/Libraries/XE6/en/Winapihttp://docwiki.embarcadero.com/Libraries/XE6/en/Winapihttp://docwiki.embarcadero.com/Libraries/XE6/en/Webhttp://docwiki.embarcadero.com/Libraries/XE6/en/Vclhttp://docwiki.embarcadero.com/Libraries/XE6/en/System.Winhttp://docwiki.embarcadero.com/Libraries/XE6/en/System.Bindings


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This page was last modified on 25 October 2013, at 19:00. Privacy policy About RAD Studio Disclaimers Help Feedback

Unit Names in Alphabetical Order with Their Unit Scopes

For a reference list of unit names with their associated unit scope name, see Unit Names Alphabetical List with Unit

Scopes.

Topics

Unit Names Alphabetical List with Unit Scopes

Adding Unit Scope Names for Your Own Components

See Also

Using Namespaces with Delphi

C++ namespaces

Unit List (Libraries Reference)

Categories: XE2 Delphi C++


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unit scope names - rad studio

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