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***********************************************************
DELPHI 4 RELEASE NOTES
***********************************************************
This file contains last-minute information about Delphi
4 and additional information that enhances the
usability of Delphi. We recommend you read this entire
file before using Delphi 4.
Certain portions of this file pertain only to some editions
(Standard, Professional, Client/server, Enterprise) of
Delphi 4. Wherever possible, when a topic concerns only
specific editions this is also noted within the topic.
Unless otherwise noted, all materials provided in this
version of Delphi are copyright (C) 1983-1998 by INPRISE
Corporation.
TABLE OF CONTENTS
=======================================================
1. WHERE TO FIND INFORMATION
1.1 Information Files
1.2 Online Resources
2. CONTACTING INPRISE
2.1 Installation Assistance and Developer Support
3. CD-ROM AND INSTALLATION DIRECTORY OVERVIEW
3.1 CD-ROM directories
3.2 Installation Directories
4. DEMO APPLICATIONS
5. UTILITY PROGRAMS
6. DOCUMENTATION
6.1 Delphi 4 Help Files
6.2 Online Version of Printed Documentation
6.3 Help Updates
7. BDE AND SQL LINKS
8. INTERNATIONAL
9. MICROSOFT TRANSACTION SERVER (MTS)
10. KNOWN PROBLEMS
1. WHERE TO FIND INFORMATION
=======================================================
1.1 Information Files
---------------------
This file, README.TXT, contains release notes for
Delphi 4. See the file INSTALL.TXT (on the Delphi CD)
for information regarding installing Delphi,
uninstalling Delphi, and system requirements. See the
file DEPLOY.TXT for information on redistributing
Delphi applications. See LICENSE.TXT for information
on licensing allowances and limitations for Delphi 4
and other INPRISE software bundled with it. See the
online Help file DEL4NEW.HLP for new features in and
compatibility issues with Delphi 4.
For the Borland Database Engine (BDE) and SQL Links
(the latter only in the Client/server and Enterprise
editions of Delphi), the file BDEREADME.TXT contains
release notes. The file BDEDEPLOY.TXT contains infor-
mation on deploying BDE and SQL Links with appli-
cations. Both files are installed in the main BDE
directory.
1.2 Online Resources
--------------------
You can get information from any of these online
sources:
1.2.1 World Wide Web
--------------------
Check INPRISE's Web site regularly. The Delphi
Product Team will post white papers, competitive
analyses, answers to frequently asked questions, sample
applications, updated software, and information about new
and existing products. You may want to check these URLs
in particular:
http://www.inprise.com/
(Main INPRISE Web site)
http://www.inprise.com/delphi/
(Delphi product information)
http://www.inprise.com/devsupport/delphi/
(Delphi Developer Support)
http://www.inprise.com/devsupport/delphi/downloads/
(Updated Help, software, and other files)
http://www.inprise.com/delphi/cpp/
(information for C++ programmers)
http://www.inprise.com/delphi/vb/
(information for Visual Basic programmers)
http://www.inprise.com/newsgroups/
(INPRISE-sponsored newsgroups, see below)
1.2.2 Newsgroups
----------------
INPRISE sponsors a variety of newsgroups where users
can exchange information about INPRISE development
tools and their use. For a complete list and
information on connecting to the INPRISE news server,
see the page at the URL:
http://www.inprise.com/newsgroups/
In addition to the groups hosted by INPRISE, the
following Usenet newsgroups are devoted to Delphi and
related programming issues. (These newsgroups are
maintained by users and are not official INPRISE
newsgroups.)
news:comp.lang.pascal.delphi.misc
news:comp.lang.pascal.delphi.components
news:comp.lang.pascal.delphi.components.misc
news:comp.lang.pascal.delphi.components.usage
news:comp.lang.pascal.delphi.components.writing
news:comp.lang.pascal.delphi.databases
news:comp.lang.pascal.delphi.advocacy
news:comp.lang.pascal.delphi.announce
news:alt.comp.lang.borland-delphi
1.2.2 FTP
---------
ftp.inprise.com
(Technical documents available by anonymous ftp.)
1.2.3 Listserv
--------------
To subscribe to electronic newsletters, use the
online form at:
http://www.inprise.com/feedback/listserv.html
or, for INPRISE's international listserver,
http://www.inprise.com/feedback/intlist.html.
1.2.4 TECHFAX
-------------
1-800-822-4269 (North America)
(Technical documents available by fax.)
2. CONTACTING INPRISE
=======================================================
2.1 Installation Assistance and Developer Support
-------------------------------------------------
INPRISE offers a range of support services for Delphi 4
(and other tools). For information, see the World Wide
Web site for Delphi Developer Support at the URL:
http://www.inprise.com/devsupport/delphi/
For assistance outside of North America, contact your
local INPRISE representative. For a list of offices and
distributors world-wide, see the page at the URL:
http://www.inprise.com/bww/
3. CD-ROM AND INSTALLATION DIRECTORY OVERVIEW
=======================================================
3.1 CD-ROM directories
----------------------
The Delphi 4 CD-ROM includes the following files and
directories.
[root]
Contains files used for installation and registration
as well as these important documents:
INSTALL.TXT Installation instructions.
README.TXT Release notes, last-minute
documentation, and a list of known
problems.
LICENSE.TXT The Delphi license agreement.
DEPLOY.TXT Information about deploying Delphi
applications.
\DELPHI16 Delphi 1.0 (16-bit).
\SQL16 Latest 16-bit SQL Links.
\DOCUMENTATION Contains PDF format copies of the
printed Delphi documentation.
\INFO\EXTRAS Contains extra bundled software.
\INFO\CBUILDER DEMO Demo copy of C++ Builder 3.
\IB5 Contains the InterBase 5.1.1 Server.
(Professional edition and higher.)
\INSTALL Contains the Delphi 4 setup program
and related files.
\ISEXPRESS Contains InstallShield Express, a
customized application deployment tool
for Delphi 4, the BDE, and related
software.
\OLENT Contains OLEnterprise files.
\RDEBUG Contains the files to install the
Remote Debugger.
\RUNIMAGE Contains a complete Delphi
installation. All files are unpacked
and in the default directory
structure.
\NETSCAPE Netscape.
\IE40 Microsoft Internet Explorer 4.0.
3.2 Installation Directories
----------------------------
These are the directories (and their contents) assoc-
iated with a full Delphi 4 installation. Some modules
do not come with all editions of Delphi and these are
noted where applicable. This file, DEPLOY.TXT, and the
Delphi documentation refer to files in their locations
relative to this default installation. Actual locations
may vary as the Delphi installation allows you to con-
trol where certain modules are installed.
\Program Files\Borland\Delphi4\Bin
(Delphi system files)
\Program Files\Borland\Delphi4\Demos
(Delphi demo programs, see "4. DEMO APPLICATIONS"
below)
\Program Files\Borland\Delphi4\Doc
(.INT files with object declarations for objects
without source .PAS files and the BDE API)
\Program Files\Borland\Delphi 4\Help
(Delphi online Help files)
\Program Files\Borland\Delphi4\Imports
(.DCU files for third-party products)
\Program Files\Borland\Delphi4\Lib
(Delphi library files)
\Program Files\Borland\Delphi4\Objrepos
(Object Repository)
\Program Files\Borland\Delphi4\Ocx
(Third-party OCX files)
\Program Files\Borland\Delphi4\Slib
(Debug versions of compiled source for use with
debugging)
\Program Files\Borland\Delphi4\Source
(VCL source .PAS files, in Professional edition and
above)
\Program Files\Borland\Common Files\BDE
(The Borland Database Engine system files; SQL
Links system files, Client/server and Enterprise
editions only)
\Program Files\Common Files\Borland Shared\Data
(Sample dBASE and Paradox tables)
\Program Files\Common Files\Borland Shared\Debugger
(The shared DLL for integrated debugger)
\Program Files\Common Files\Borland Shared\Images
(Sample image files, button glyphs, splash screen
images, more)
\Program Files\Common Files\Borland Shared\MSHelp
(Microsoft SDK files)
\Program Files\Common Files\Borland Shared\SampleDictionary
(Sample data dictionary)
\Program Files\Borland\Database Desktop
(Database Desktop utility)
\Program Files\Borland\vbroker
(CORBA support)
\Windows\System32
(Windows NT system files)
4. DEMO APPLICATIONS
=======================================================
Sample programs, including the ones listed below, are
installed with Delphi in the ..\Delphi 4\Demos\ direc-
tory. To build these demos, compile the appropriate
.DPR file. With client/server applications, be sure to
build and run the server program before building the
client.
* CORBA demos only with Client/server and above
\CORBA\ACCOUNT
(Console CORBA client & server projects; how to use
DII; same as VisiBroker's demo.)
\CORBA\DATAMODULE
(Using CORBA's datamodules; master-detail on CORBA
server.)
\CUSTOMDRAW
(Using Windows custom draw support for TTreeView.)
* Available only with Professional and above
\DB\CSDEMOS
* Available only with Client/server and above
\DB\MTSPOOL
(Using MTS pooling.)
\DOCKING
(Application template showing toolbar docking, tab
docking, conjoinment docking, & hidden docksites.)
* Internet demos only with Professional and above
(The following are demo projects from NetMasters.)
\INTERNET\DAYTIME
\INTERNET\ECHO
\INTERNET\FINGER
\INTERNET\MSG
\INTERNET\POP3
\INTERNET\SMTP
\INTERNET\TIME
\INTERNET\UDP
\INTERNET\URL
\INTERNET\UUE
* MIDAS demos only with Client/server and above
\MIDAS\AGGREGATE
\MIDAS\ALCHTEST
(TClientDataSet test application.)
\MIDAS\BRFCASE
(How to do briefcase with MIDAS.)
\MIDAS\CUSTTREE
(Server: master-detail with customer and orders
tables. Client: displays data from server.)
\MIDAS\INTRCPT
(How to write interception DLL for the socket
server.)
\MIDAS\LOGIN
(How to do login with MIDAS.)
\MIDAS\POOLER
(How to pool remote datamodules.)
(Oracle 8 demos only with Client/server and above)
\ORACLE8\ORTYPES
(Oracle object relational types; can be used as a
utility.)
(The following demonstrate using rich-edit components
in international situations.)
\RICHEDIT\DEU
\RICHEDIT\ENU
\RICHEDIT\FRA
\RICHEDIT\SVE
\VIRTUAL LISTVIEW
(Taking advantage of OwnerData property of
TListView; creating a mini-explorer window.)
5. UTILITY PROGRAMS
=======================================================
Delphi 4 comes with a number of helper, utility appli-
cations. These application programs serve a variety of
purposes, from debugging applications to working with
data tables. These utility programs include:
Resource compiler
BRCC32.EXE, in ..\Delphi4\Bin
Database Explorer
SQL Explorer (Client/server & Enterprise editions)
DBEXPLOR.EXE, in ..\Delphi4\Bin
Database Desktop
DBD.EXE, in \Program Files\Borland\Database Desktop
GREP
GREP.EXE, in ..\Delphi4\Bin
Make utility
MAKE.EXE, in ..\Delphi4\Bin
MTS installation (Client/server & Enterprise editions)
MTSINST.EXE, in ..\Delphi4\Bin
Open Help
OH.EXE, in ..\Delphi4\Bin
Package Component Editor
PCE.EXE, in ..\Delphi4\Bin
SQL Monitor (Client/server & Enterprise editions)
SQLMON.EXE, in ..\Delphi4\Bin
TDump
TDUMP.EXE, ..\Delphi4\Bin
TRegSrvr
TREGSRVR.EXE, ..\Delphi4\Bin
6. DOCUMENTATION
=======================================================
6.1 Delphi 4 Help Files
-----------------------
The Delphi 4 on-line documentation consists primarily
of the following Windows Help files:
File Purpose
------------ -----------------------------------
DELPHI4.HLP Main Delphi Help
DEL4COM.HLP Developing COM-based Applications
DEL4CW.HLP Component Writer's Guide
DEL4DAP.HLP Developing Distributed Applications
DEL4DBD.HLP Developing Database Applications
DEL4OP.HLP Object Pascal Guide
DEL4PROG.HLP Programmer's Guide
DEL4VCL.HLP VCL Reference
DEL4NEW.HLP What's New and compatibility issues
OPENHELP.HLP Customizing Help
6.2 Online Version of Printed Documentation
-------------------------------------------
For your convenience, Acrobat versions of the document
ation (except the VCL Reference) are provided. Use the
provided Acrobat Reader to view the files. In addition
to the reader, the following files are provided:
DG.PDF
Acrobat version of the Developer's Guide.
OPLG.PDF
Object Pascal Guide and Object Pascal Help.
QS.PDF
Quick Start manual.
READRTIP.PDF
Tips for using the Acrobat Reader.
STARTUP_DELPHI4.PDF
The main menu and start-up files. Use this file to
access all other PDF files.
These Acrobat files are located on the Delphi 4 CD in
the \Documentation directory.
6.3 Help Updates
----------------
TCustomListView
---------------
TCustomListView.OwnerDataFetch has an undocumented
parameter: Request. The Request parameter specifies
which properties of the Item object the list view is
expecting to be filled-in. irText corresponds to
TListItem's Caption property, irImage to its Image
property, irParam to its Data property, irState to its
Cut, DropTarget, Focused and Selected properties, and
irIndent to its Indent property. The syntax prototype
should be:
TItemRequests = (irText, irImage, irParam, irState,
irIndent);
TItemRequest = set of TItemRequests;
function TCustomListView.OwnerDataFetch(Item:
TListItem; Request: TItemRequest): Boolean; virtual;
Windows API Help
----------------
For the latest information on the Windows 32-bit API,
refer to the Microsoft Developer Network (MSDN) Web
site.
The Run ToolBar Button Drop Down List
-------------------------------------
The Debugger Run toolbar button now has a drop down
list that will allow you to change what the active
project/process is. If you are debugging more than one
project and you want to switch to a process that is not
currently active, click on the little down arrow in the
Run button and select the EXE you want to become
active. This will not run the EXE just activate it. If
the EXE is not currently stopped in the debugger
selecting it will make its project the active project
in the Project Manager.
Quick Start Manual Errata
-------------------------
On page 3-6, step 4 says to set TDBGrid properties to
anchor the grid to the form and set the Constraints
subproperties AnchorHorz and AnchorVert to akStretch.
Correction: Anchors is a separate property and step 4
should direct you to set all Anchors subproperties
(akLeft, akTop, akRight, and akBottom) to True.
Page 5-7 states incorrectly refers to package files
using the extension .DPL; should be .BPL. Also, on the
same page, there is a reference to the file VCL30.DPL;
this should be VCL40.BPL instead.
Developer's Guide Errata
------------------------
On page 49-20, in the example at the top:
TransactionContextEx.Abort
should be...
TransactionContextEx.SetAbort
TransactionContextEx.Commit
should be...
TransactionContextEx.SetComplete
What's New Help File Errata
---------------------------
New UseSystemFont property for TStatusBar. Specifies
whether the status bar uses the system font. As the
default for this property is True, it can impact legacy
applications by causing the TStatusBar to use the
system font.
BDE: New Oracle 8 REF Field Property, curGETREF
-----------------------------------------------
After inserting a record, the object ID for the newly
inserted record can be obtained by allocating space
(the iLen of the parent's REF field), and passing this
into DbiGetProp().
DbiGetProp( hCur, curGETREF, pOBJECTID, refSize,
&iObjectLen );
BDE: New REF Field Property, curREFINSERTTABLENAME
--------------------------------------------------
When inserting records with a cursor opened with
DbiOpenRef(), BDE needs to know the name of the stand-
alone table into which you wish to insert the record.
If this property has not been set, an error will occur.
DbiSetProp( hCur, curREFINSERTTABLENAME, (UINT32)
<pszStandAloneTableName> );
7. BDE AND SQL LINKS
=======================================================
See BDEREADME.TXT (in the BDE directory) for release
notes for the Borland Database Engine (BDE) and SQL
Links (the latter only available with the Client/server
and Enterprise editions of Delphi).
See BDEDEPLOY.TXT (in the BDE directory) for specific
information regarding redistributing the BDE and SQL
Links with Delphi applications.
8. INTERNATIONAL
=======================================================
8.1 Upgrading Arabic and Hebrew Support
---------------------------------------
Middle East language support has been added to Delphi.
Users of Delphi 3 Arabic or Delphi 3 Hebrew Enablement
products should note that the old Arabic and Hebrew
properties have been combined to a single property
called BiDiMode, and there is a new property called
ParentBiDiMode. See the online help for details.
If you open an old project in Delphi 4, Delphi displays
an error message stating "Class T... not found". Either
select "Ignore" or "Ignore All". Once the Form is
displayed, the old Arabic/Hebrew components are not
displayed. Add the Delphi components in the appropriate
places, update the BiDiMode fields, relink the event
handlers and save the project.
8.2 Changing keyboards for BiDi support
---------------------------------------
Switching bidi mode does not change the keyboard. You
can do this for any control that has an OnEnter event.
Set the OnEnter event to use this method:
procedure TForm1.Edit1Enter(Sender: TObject);
begin
if Sender is TWinControl then
with Sender as TWinControl do
if UseRightToLeftReading then
ActivateKeyboardLayout(...) //bidi keyboard
else
ActivateKeyboardLayout(...) //other keyboard
end;
9. MICROSOFT TRANSACTION SERVER (MTS)
=======================================================
If Microsoft Transaction Server (MTS) is installed
before Delphi 4 is installed, the only preparation
needed is setting MTS POOLING to TRUE in the Borland
Database Engine (BDE) configuration file. Use the BDE
Administator to do this. The MTS POOLING setting is in
the System/Init area of the configuration. This setting
enables the BDE to use MTS pooling, improving the
initial connection time when opening a database and
allowing BDE database connections to participate in MTS
transactions.
If MTS is installed after Delphi 4 has already been
installed, additional steps must be taken.
1. Copy DISP.DLL from the RUNIMAGE directory on the
Delphi 4 CD into the BDE directory on the host
computer.
2. Issue the following command:
REGSVR32 <BDE directory>\DISP.DLL
3. In Transaction Server Explorer, install BDE-MTS
package:
a. Right Click on Packages Installed.
b. Choose New | Package.
c. Choose Install pre-built packages.
d. Add file DISP.PAK from the BDE directory.
4. Set the value of MTS POOLING to True in the
System/Init section of the BDE configuration.
10. KNOWN PROBLEMS
=======================================================
Packages and ISAPI DLLs
-----------------------
The ISAPI/NSAPI WebModule-based DLL's cannot be used
when compiled with packages. Workaround: remove INET40
and INETDB40 BPLs from the project.
InterBase Installation
----------------------
Because the InterBase install does not remove registry
entries and services completely, an error will be seen
at the next reboot after uninstall: "Unable to start
one or more services". Suggested workaround: run
Control Panel | Services and turn off automatic start
for InterBase Server.
MTS
---
After CoInitialization/CoUninitialization have been
called, CoInitialization cannot be called again. Once
CoUninitialization has been called, your application no
longer executes in the MTS runtime environment.
There is a known problem with using the client
CreateTransaction/CreateTransactionEx mechanism for
controlling MTS transactions. The BDE is not reenlisted
once a transaction is committed or rolled back.
Workaround: you must:
1. On the client side, call CreateTransaction and
ITransaction.CreateInstance after each commit or
rollback.
2. On the server side, close and reopen the database
for each commit or rollback.
Oracle 8
--------
If using a TTable as TProvider.DataSet, the ADT member
fields in the TClientDataSet will by default be required.
To modify this, use the Fields Editor to make persistent
TFields for all fields in the TTable and then set the
bRequired property for each ADT member to False.
When working with MTS, OBJECT MODE (Oracle 8 driver in
BDE configuration) should be set to FALSE.
Partition tables are not supported.
REF IN OBJECT VIEWS: REF data type which has a size
greater than 200 bytes is not supported in this
release. This will happen when you have an ORACLE 8
object view created from a table with the key field
greater than 25 bytes.
TDBGrid may have difficulty displaying data when the
associated dataset consists of tables nested too deeply
(generally, 5 or more levels of nesting).
Oracle 8 client does not work correctly on Win98.
Attempts to use client utilities raises a dialog box:
"Some features of Oracle Version 8 may not run
correctly in Windows 98. For possible updates please
check the Oracle web site". Delphi will raise BDE error
"Cannot load driver".
The following tools do not fully support Oracle 8
object field types:
Database Desktop
Data Pump
QuickReport components
TeeChart component
DataSetTableProducer and QueryTableProducer
SQL Builder
Decision Cube components
Data dictionary
Database Explorer
Database Form Wizard
COMCTL32.DLL Versions
---------------------
Using an older version of COMCTL32.DLL than is
installed with Delphi 4 will cause problems with
components like Cool Menus and TToolButton. Installing
some programs (like Microsoft Internet Explorer 3.02)
will cause COMCTL32.DLL to be overwritten with an older
version. Use the update program 40COMPUPD to replace it
with the later version and prevent these problems.
Code Explorer/Class Completion
------------------------------
Some default key combinations may conflict with key
combinations defined in alternate Editor SpeedKey
settings. For example, Shift+Ctrl+UpArrow conflicts
with SpeedKey a key combination for Brief and Epsilon.
CORBA/OSAGENT.EXE
-----------------
A CORBA server will crash if OSAGENT is not already
running. Start OSAGENT as a service under NT or with a
-C flag when run as a console. Without the flag the
application will terminate in 10 seconds.
CORBA/IDL Generation
--------------------
When clicking on the Export button to generate IDLs,
the names of interfaces in the generated IDL are not
fully qualified. You need to manually update the IDL
file. For example:
IDataBroker should be updated to StdVCL::IDataBroker
IProvider should be updated to StdVCL::IProvider
DisableControls Method
----------------------
Normal behavior note. The DisableControls method will
also disable active Master-Detail links. Also, if you
set BlockReadCount instead of calling DisableControls,
then only the detail datasets get updated as you scroll
through the dataset, not data-aware controls. Affects
all components that can effect Master-Detail links and
can use DisableControls.
TChart/DbChart
--------------
Changing a primary index field to a duplicate value
(key violation) and then hitting the Escape key moves
the active record off of the record that was just being
modified if a TDBChart is hooked to the same table. A
workaround is to use two events of the dataset:
Var bb:TBookMark;
procedure TForm1.Table1AfterPost(DataSet: TDataset);
begin { go to current record... }
Table1.GotoBookMark(bb);
Table1.FreeBookMark(bb);
end;
procedure TForm1.Table1BeforeEdit(DataSet: TDataset);
begin { get current record... }
bb:=Table1.GetBookMark;
end;
Packages
--------
If you have created your own design-time packages in an
earlier version of Delphi or C++Builder, they
must be rebuilt under Delphi 4 before they can be
installed into Delphi 4.
The package format has been changed in order to
identify the producer of a package (C++Builder 3,
Delphi 3, Delphi 4, etc.). Any user packages built with
earlier versions will not be installable (until
rebuilt) because they do not contain this information.
Constraints/Persistent Fields/TClientDataSet
--------------------------------------------
Constraints on persistent fields for a TClientDataSet
are ignored. To use constraints with a TClientDataSet,
place them on a TTable or TQuery that the TProvider
uses to populate the TClientDataSet.
MTS Pooling Demo
----------------
Closing the DB\MTSPool demo gives an Runtime error 216.
Workaround is to do the following in the MTS explorer:
1. Go to Computers
2. Right-click on "My Computer"
3. Select Stop MS DTC
4. Right-click on "My Computer"
5. Select Properties
6. In the "Advanced" tab, press the "Reset Log"
7. Right-click on "My Computer"
8. Select "Shut Down Server Processes"
9. Right-click on "My Computer"
10. Select "Start MS DTC"
Variants and 64-bit Integers
----------------------------
Round & Trunc return an Int64 type. However, Variant
is not compatable with Int64. In order to convert to a
Variant you must go to a comp then to a Variant. You
cannot typecast the Variant to a Int64. This can
cause problems and backward compatability issues since
push and pop require a variant value.
Menu Short-cut Conflicts
------------------------
Menu short-cuts in the IDE may conflict with system
short-cuts and international character key
combinations. If you want to disable the Ctrl+Alt hot
keys in the IDE, set this string registry key:
HKEY_CURRENT_USER\Software\Borland\Editor\Options\
NoCtrlAltKeys to "1"
COM/ActiveX initialization
--------------------------
The placement of COM/ActiveX initialization in Delphi
has changed in this version. Prior versions initialized
COM (through CoInitialize) in the initialization
section of the ComObj unit. COM initialization is now
accomplished during the call to Application.Initialize.
Therefore, COM applications that do not call
Application.Initialize must be changed so that it is
called prior to any calls to COM runtime or interface
methods. Likewise, calls to COM functions or interface
methods in unit initialization sections must be changed
to hook into Application.Initialize. This is only
necessary in .exe projects, not .DLL (library)
projects.
Threading Model support
-----------------------
Out of process (.EXE) servers that are to support the
Free or Both threading models on the primary thread
require that the global variable CoInitFlags be set to
COINIT_MULTITHREADED. This must be done in the
initialization section of any unit in your project or
in the project file prior to the call to
Application.Initialize.
Cached Updates and Master-Detail Relationships
----------------------------------------------
Cached Updates cannot be used effectively with TQuery
components when doing master-detail links (DataSource
property). This is because the detail query is re-
executed each time the master record pointer moves.
BDEINST.TXT File
----------------
The text file BDEINST.TXT contains the wrong
FileVersion number for the BDEINST.DLL, showing 4.1.5.4
instead of 5.0.0.38.
Client Dataset/Aggregate Fields
-------------------------------
There are known problems with adding and activating
aggregate fields after the client dataset has been
activated. It is best to add all needed aggregate
fields before activating the client dataset.
=======================================================
Unless otherwise noted, all materials provided in this
release are Copyright 1983 - 1998 by INPRISE
Corporation.
======================= END ===========================