VG VCL Library 5.1
==================
The set of components for Borland Delphi 2, 3, 4 & 5 and C++ Builder 3 & 4.
100% source code.
Latest Changes
--------------
New compiler versions:
Delphi 5
C++ Builder 3.0, 4.0
New languages:
Dutch, French
New components, classes:
TvgTranslator
TDBExpression
TExplorerShellFolderNode
TZLIBCompressor
TReadMemoryStream
TComponentPoolManager, TIntfPoolManager, TComPoolManager
New properties, methods, events:
TExplorerNodes: ClipboardMode, DblClick, CanCopyList, CanCutList,
CanDeleteList, DoCopyList, DoCut, DoCutList, DoDeleteList
TExplorerSource: DoCopy, DoCut, OnCopy, OnCut
TvgThread.Terminated
TMSSCScript.ScriptControl moved to public
Other changes
TvgWordPrint "suppress duplicate values" option added
TMSSCScript multiple user-defined COM objects support added
TTranslator removed from library
New units: vgBCDUtl.pas, vgI4_TLB.pas, vgI5_TLB.pas, vgI.Inc
New typelibs: vgI4.dll, vgI5.dll
Rewritten a number of component editors
Decreased a number of packages
A number of demos added
HandleSafeCallExceptionEx function allows to suppress a number of raised
EOleException exceptions while debugging
New functions
vgUtils.pas
FindInteger, CompareChars, ZeroMem, Like, WriteBufferAt,
CompareInteger, CompareDWord, CompareInt64, CompareUInt64
vgVCLUtl.pas
BrushDrawCentered, BrushDrawImageListCentered, AppSetCursor, AppRestoreCursor
vgDBUtl.pas
SetDataSetsFieldFormat
vgOleUtl.pas
GetActiveOleObject
vgComObj.pas
HandleSafeCallExceptionEx
Overview
--------
VG VCL Library contains a large collection of components, objects and
utility routines for Delphi. It is distrubuted with full source code and
is compatible with Borland Delphi 2, 3, 4, 5 and C++ Builder 3.0.
Library includes Russian, English, Spanish, Dutch and French string
resources.
VG VCL Library contains a few components that reqire RX Library. These
components are optional. To use them you should have RX Library 2.30
or higher to be installed.
VG VCL Library is a freeware product. Feel free to distribute the library
as long as all files are unmodified and kept together.
There is no help available.
Components
----------
TvgThread component is the TThread wrapper that allows simple thread
programming without writing TThread descendents.
TMoneyString translates numbers into verbal representation.
TDateTimeStorage and TCurrencyStorage components allow to edit regional
settings variables to make application behavior to be independent from
operating system configuration.
TFormLoader component simplifies merging forms into TWinControl descendents
and is usable for creating multi-sheet forms and outlook user interfaces.
TMSSCScript component wrapps Microsoft Script Control and enables you to
write and execute VBScript and JavaScript scripts within your application.
TvgTranslator component allows to create multilanguage applications.
It stores language-specific string values in INI files or through
user-defined event handlers and allows users to create their own
translations of program interface.
TvgSplitter control has the same functionality as the standart TSplitter.
TClickEdit controls looks like standart TEdit. It allows to align an edited
text horizontally and has an optional button at the right side.
TTitler is a custom panel that shows auto-scrolling text.
TvgPageControl is the TPageControl descendent that makes available a number
of advanced properties of the TPageControl control of Delphi 4.
TvgNoteBook controls is the TNotebook descendent with 3D view.
TvgTabSet is a custom-draw TTabSet. It allows to edit tabs orientation.
TExplorerNodes component and it's descendents provides you with powerful
instrument of handling tree-like data structures. When using explorer
components developer can program a complex TTreeView or TListView
wrapping with just a few lines of code. Library includes over 10 full-
functional descendents of the TExplorerNodes component.
TExplorerSource component allows to set virtual root in the TExplorerNodes
hierarchy to browse subtree of root inside explorer controls.
Explorer controls represent tree-like structures in a number of different
ways. Library includes TExplorerTreeView, TExplorerListView,
TExplorerListBox and TExplorerTreeCombo controls that support all
advanced features of the TExplorerNodes component interface.
TvgDatabase provides developer with advanced transaction control for
multithreaded applications. This component is usable when writing
application servers in the apartment threading model.
TvgQuery extends functionality of the TRxQuery (RX Library) component.
It automatically refreshes when it's params or macros are changed.
TvgSQLScript executes multiple SQL statements. TvgSQLScript provides you
with macro extensions of SQL like TRxQuery does.
TvgUpdateScript is the TUpdateObject descendent that allows to execute
multiple SQL statements when applying cached updates.
TFieldSource is the TFieldDataLink wrapper. It filters data events
that send TDataSource to listed fields.
TOpenTables component manages list of open datasets. It counts references
on the dataset and closes it when the dataset is no more needed.
TBDEDataSetHook component assigns events of the given dataset to simplify
buisness-logic coding of the large datamodule.
TDBConverter, TBDEConverter provides you with codeless intelligent
techinque of converting old databases into databases with new structure.
TvgDBGrid is the TRxDBGrid (RX Library) descendent that has miscelaneous
visual enhancements. The two different row colors make grid to look better.
TvgQuickSearch and TRxQuickSearch provide incremental search in the TDBGrid.
When using these components user can copy contents of the dataset into
Clipboard pressing Ctrl+C.
TvgDBLookupCombo component is the TRxDBLookupCombo descendent. It has
an optional small button. This button allows to browse and edit data
dictionaries on-the-fly.
TvgDBTreeView control is the fast and smart component that navigates
through tree-like datasets.
TvgDBTreeCombo component is the TvgDBTreeView control in the form of
drop-down list.
TvgDBMenu component implements TDBNavigator functionality in the form
of popup menu.
TDBRadioButton is the standalone radio button that doesn't require
TDBRadioGroup to work.
TDBExpression implements a powerful expression evaluator. It allows to
evaluate string expressions in the way the TDataSet.Filter property works.
Component supports about 20 functions including aggregate functions
SUM, MIN, MAX and AVG.
TvgWordPrint is a component family that provides developers with
powerfull open architecture report system for Microsoft Word.
Family includes full-functional components that works with data of
the BDE and client datasets.
Libraries
---------
vgUtils.pas
General-purpose routines. Component copying, cloning, iterating.
Nil-able TList routines. Variant comparing, streaming. Log files.
String and floating-point routines. Registry and ini-file utilities.
Resourcestring on-the-fly localization
vgTlHelp.pas
List of running process (Windows 95).
vgVCLUtl.pas
Cursor management, controls iterating, drawing routines.
vgDBUtl.pas
Datasets and fields routines. Generation of SELECT and UPDATE SQL
statements. Field validation (CheckXXX functions). NVL-functions.
Clipboard support routines. Bokmarks for primary keys, refresh.
Full search locate. String fields autosizing.
vgDBPrms.pas
TParams utilities. Update statement parameters support.
vgBDEUtl.pas
Transaction support. On-the-fly queries. Building TUpdateSQL.
Editing CachedUpdates. Exception translation.
vgCachUp.pas
Advanced editing of CachedUpdates.
vgOleUtl.pas
TDispInvokeCache class speeds up OLE automation up to 2 times.
vgComObj.pas
Helper classes for COM servers (apartment threaded factories).
vgSystem.pas
Special TThread descendents. Compression classes and routines.
Variant compression.
vgMemory.pas
Native WinAPI memory manager
ConstsRC.pas
On-the-fly resourcestring localization of Consts.pas.
DBConstRC.pas
On-the-fly resourcestring localization of DBConsts.pas.
vgBCDUtl.pas
BCD utility routines
Notes
-----
VG VCL Library requires next files in the system path:
MSVCRT.DLL
VGLZSS32.DLL
VGI0.DLL (only for Delphi 3 or C++ Builder 3)
VGI4.DLL (only for Delphi 4 or C++ Builder 4)
VGI5.DLL (only for Delphi 5)
If RX Library is 2.40 or higher make sure that RX240 conditional define
is defined in the VG.INC include file.
MS Script Control OCX is available at http://www.microsoft.com/scripting.
-------------------------------------------
Vladimir Gaitanoff
WWW: http://www.tsinet.ru/~vg/
E-mail: vg@tsinet.ru