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Revision 21 by tony, Thu Feb 26 10:33:34 2015 UTC vs.
Revision 267 by tony, Fri Dec 28 10:44:23 2018 UTC

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1	<	IBX Change Log  version                                      (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
1	>	IBX Change Log  version (2.3-3 Build 11288) Fri, 28 Dec 2018 10:04:17 +0000
2	>
3	>	1. New property for TIBDatabase and TIBXServicesConnection. This is "ConfigOverrides"
4	>	and is used to override the default settings in the client side "firebird.conf" This
5	>	includes "WireCompression" and "WireCrypt". The value of this property is a "TStrings".
6	>	Each line of the string list should be a setting in the same format as "firebird.conf".
7	>	For example "WireCompression = true" in order to request wire compression on the client side.
8	>
9	>	Note: explicit settings in the client side "firebird.conf" appear to take precedence
10	>	over settings given in TIBDatabase and TIBXServicesConnection. Many client side settings
11	>	also require a compatible setting in the server side "firebird.conf". For example
12	>	"WireCompression = true" must also be set in the server's "firebird.conf" for wire
13	>	compression to be used.
14	>
15	>	Whether or not WireCompression or WireCrypt are in use can be checked using the information
16	>	returned with the Client/Server protocol version. See ibx/examples/dbadmin and
17	>	ibx/examples/dbinfo for examples of how to display this information.
18	>
19	>	2. New property for TIBDatabase and TIBXServicesConnection: "WireCompression". This
20	>	is a "convenience" property. If set the "WireCompression=true" is added to the
21	>	ConfigOverrides. If unchecked then this setting is removed.
22	>
23	>	IBX Change Log  version (2.3-2) Wed, 05 Dec 2018 12:19:23 +0000
24	>
25	>	1. Remove need to check for IsMultiThread by providing access to GUI timers via
26	>	IBGUIInterface. Note: master/detail delay timer does not apply to console
27	>	mode apps.
28	>
29	>	2. TIBCustomDataSet: SQLParser ignored if it does not contain a valid select
30	>	statement. This avoids problems if "Execute Block" is used as the Query.
31	>
32	>	3. IBSQLParser now uses the common SQL tokeniser from fbintf. This replaces the
33	>	internal SQL tokeniser routines.
34	>
35	>	4. IBSQLParser: new property NotaSelectStmt. Set to true if SQL fails to parse
36	>	as a select statement, with or without CTEs.
37	>
38	>	5. IBSQLParser: parser now recognises the "ROWS" clause.
39	>
40	>	6. TIBXScript now uses the common SQL tokeniser from fbintf. This replaces the
41	>	internal SQL tokeniser routines.
42	>
43	>	7.  Fix error in TIBXScript processing of "set" statements. This avoids exceptions
44	>	being raised for valid set statements processed by a data formatter.
45	>
46	>	8. New published property for TIBDatabase and TIBXServicesConnection. This is
47	>	FirebirdLibraryPathName: string. If not empty it is used to explicitly specify
48	>	the path of the Firebird Library used by the database/services connection.
49	>
50	>	9. New read only public property for TIBDatabase and TIBXServicesConnection. This
51	>	is FirebirdAPI and returns the IFirebirdAPI interface used by the database/
52	>	services connection.
53	>
54	>	10.SQL Property editors now quote parameter names if "Quote identifier" is selected
55	>	or param name is not a valid SQL identifier.
56	>
57	>	11. IBLookupComboEditBox: In Lazarus 2.0, TDBLookupComboBox takes a more restrictive
58	>	view of whether the text box should be editable when no DataSource is specified.
59	>	TIBLookupComboEditBox has been updated to workaround this problem. As long as
60	>	ReadOnly is false, the text box is editable when no DataSource is specified.
61	>
62	>	12. AllowUseOfFBLIB is now set to "true" at design time. This is to allow use of
63	>	the FBLIB environment variable. If you do not want to permit this then you
64	>	must modify the Register procedure in the design/IBDBReg.pas unit to remove
65	>	this setting.
66	>
67	>	IBX Change Log  version                 (2.3-1) Thu, 25 Oct 2018 14:39:45 +0100
68	>
69	>	1. IBCustomDataset: replace deprecated function ValidUTF8String with call to
70	>	Utf8EscapeControlChars
71	>
72	>	IBX Change Log  version                (2.3-0) Mon, 16 Apr 2018 09:48:06 +0100
73	>
74	>	IMPORTANT: the source code tree has been re-organised for IBX 2.3. Please remove
75	>	all previous copies of the IBX source code tree before installing this release.
76	>
77	>	The IBX packages used by most users have not changed, with one exception. The
78	>	IBServices unit has been moved to the package iblegacyServices.lpk. To continue
79	>	to use the IBServices unit in your applications, please add the iblegacyServices
80	>	to the list of dependencies. To do this, open the Project Inspector and select
81	>	Add->New Requirement and select "ibLegacyServices" from the list of available
82	>	packages.
83	>
84	>	1. New unit IBXServices. The IBXServices unit is a re-architectured update of
85	>	the IBServices unit providing what is intended to be a clearer and easier to
86	>	use set of IB Services components. See Chapter 10 of the IBX User Guide for
87	>	more information and the guide to "Firebird Service Management Using IBX".
88	>	As indicated above, the legacy services components are still available and
89	>	provided in a separate package. There is no need to update working applications
90	>	using the older versions except for an additional package dependency.
91	>
92	>	2. The IBX packages and source code tree have been re-organised in an attempt to
93	>	finally get rid of the "duplicate ppu" warnings. This re-organisation should
94	>	not affect existing users. Section 2.3 of the IBX User Guide describes the
95	>	new set of IBX packages.
96	>
97	>	3. The ibx/examples/DBAdmin and the ibx/examples/services example have been
98	>	updated to use the new Services API components.
99	>
100	>	4. The iblocal package has been updated to use the new Services API components.
101	>
102	>	5. procedure SetAutoAdmin; in the new IBX Services this method is now a member of
103	>	TIBXSecurityService. It had been wrongly classified in the previous version
104	>	as a per database configuration item. It is global to a server and hence
105	>	correctly positioned as part of the Security Package. In the DBAdmin example,
106	>	the setting has moved to the mappings page.
107	>
108	>	6. TIBXScript: IgnoreCreateDatabase added. If true then CREATE DATABASE statements
109	>	are ignored.
110	>
111	>	7. TIBDatabase: DropDatabase now ensures that all transactions have been properly
112	>	closed before the database is dropped. Before and After Disconnect event handlers
113	>	are also fired.
114	>
115	>	8. TIBTransaction: OnStartTransaction event now fires every time the transaction
116	>	is started and not just the first time.
117	>
118	>	9. IBDataOutput: Use FormatFloat for all performance statistics to avoid platform
119	>	depenendency with comp type.
120	>
121	>	10. IBDataOutput: select query data output is now sent to stdout instead of stderr.
122	>
123	>	11. TIBDatabase: Remove regression. If a user login dialog changes the DatabaseName
124	>	then this is recognised and not ignored.
125	>
126	>	12. TIBDataSet, TIBQuery, TIBTable: additions:
127	>	function GetRowsAffected(var SelectCount, InsertCount, UpdateCount, DeleteCount: integer): boolean;
128	>	function GetPerfStatistics(var stats: TPerfCounters): boolean;
129	>	property EnableStatistics: boolean read FEnableStatistics write SetEnableStatistics;
130	>
131	>	GetRowsAffected returns the affected row counts from the last insert/update/delete
132	>	if EnableStatistics = true then GetPerfStatistics returns the current stats
133	>	counters for the select query. Note: stats accumulate after each fetch from
134	>	the database. To get total query cost after open, call the "Last" method
135	>	and then GetPerfStatistics.
136	>
137	>	See ibx/examples/consolemode for an example of the use of GetPerfStatistics
138	>
139	>	13. TIBExtract: Identity columns DDL. "Start with clause" now correctly encapsulated
140	>	in parenthesises.
141	>
142	>	14. TIBExtract: new published property "AlwaysQuoteIdentifiers". If true then in dialect 3
143	>	SQL identifiers are always delimited by double quotes. If false, then they are
144	>	only delimited if the identifier is a reserved word, contains lower case or special
145	>	characters. Set this property to true to retain previous behaviour.
146	>
147	>	15. Insert SQL Property Editor. In Insert Returning Clause, Identity column names
148	>	are now inserted in double quotes if not Reserved Words or valid SQL Identifiers.
149	>
150	>	16. TIBDataSet, TIBQuery, TIBTable: addition:
151	>	property MasterDetailDelay: integer {defaults to zero}
152	>
153	>	When non-zero and the dataset is a detail table referencing a master table
154	>	through either a MasterSource (TIBTable) or a DataSource (TIBDataSet, TIBQuery)
155	>	then a synchronisation delay is added (in milliseconds) between the master
156	>	row changing and the detail dataset being re-opened. If the master dataset
157	>	is scrolled before the delay expires then the delay is reset. This can be used
158	>	to avoid performance overheads when scrolling through a large master dataset.
159	>
160	>	Note: uses fptimer and hence requires a thread manager. Under Linux the
161	>	chreads unit must be included in your project. TTimer is not used in order
162	>	to avoid an LCL dependency. Requires FPC 3.0.2 or later.
163	>
164	>	17. TIBExtract: User role grants now excluded when etGrantsToUser not specified
165	>	with Extract Option eoDatabase.
166	>
167	>	18. TIBLookupComboEditBox: Workaround added for https://bugs.freepascal.org/view.php?id=33428
168	>	When a deLayoutChanged event is reported on the ListSource dataset, the
169	>	combobox text is updated. This allows a listsource (detail) to be in a Master/Detail
170	>	relationship with the control's datasource (master).
171	>
172	>	19. TIBExtract: Full BigInt value range now supported for Generators/Sequences.
173	>
174	>	20. TIBExtract: Select Procedures (Procedure type 1) now include "SUSPEND;" clause in their
175	>	stubs. Pedantic fix really, as procedures output in dependency order anyway.
176	>
177	>	21. TIBExtract: Package Headers and Package Bodies are now included in the extracted
178	>	DDL (Firebird 3 and later only).
179	>
180	>	22. TIBLookupComboBox Autocomplete Fixes:
181	>	i. Only appended text is now selected after autocomplete.
182	>	ii. Uppercase keys no longer ignored for autocomplete.
183	>	iii. Retain Prefix case is now honoured correctly.
184	>	iv. When a DataSource is assigned, typing after autocomplete now extends prefix
185	>	before autocomplete performed. i.e. behaviour now the same as when
186	>	no DataSource assigned.
187	>
188	>	23. TIBXScript: Single Line Comments starting with '--' are now ignored when occurring
189	>	between SQL statements.
190	>
191	>	24. TIBExtract: New published property CaseSensitiveObjectNames. If false (default) then
192	>	ObjectNames are converted to upper case before matching against metadata object
193	>	names, unless the objectname is delimited by double quotes, in which case, the
194	>	double quotes are removed and the remaining string is used (unmodified) to match
195	>	against the metadata object name.
196	>
197	>	If true then the ObjectName is used as is without modification and matched
198	>	against the metadata object name. No attempt is made to remove double quotes.
199	>
200	>	25. TIBExtract: New Extract Types: etDatabaseTriggers and etDDLTriggers. When used
201	>	with eoTrigger, these extract types can be used to select only Database Triggers,
202	>	or DDL Triggers or both. Ignored when etTable or etTrigger included in Extract Types.
203	>
204	>	26. TIBXScript: If an exception occurs during the processing of a statement, the
205	>	statement separate character is now reset to the default (';').
206	>
207	>	27. TIBDatabase: Reconnect method added and used by TIBXScript for reconnect.
208	>
209	>	28. TIBXScript: Transaction is no longer automatically reactivated immediately processing
210	>	a commit or reconnect statement and instead activated only when next SQL statement
211	>	is executed.
212	>
213	>	29. TIBSQL.HasField should no longer generate and exception when the field does not exist.
214	>
215	>	30. TIBXScript: case insensitive regex now used when matching statements instead of
216	>	converting statement to upper case.
217	>
218	>	31. TIBExtract: metadata comments now supported. New published property
219	>	IncludeMetaDataComments (default true). If true then metadata comments included
220	>	in extracted DDL. New Extract Object member eoComments. This may be used with
221	>	ExtractObject method to list all metadata comments.
222	>
223	>	32. TIBExtract: ListObjectNames method added.
224	>
225	>	33. Updated Database component editor to support additional connection string
226	>	types.
227	>
228	>	IBX Change Log  version  (2.2-0) Wed, 28 Feb 2018 10:57:45 +0000
229	>
230	>	NOTE: THE LOCATIONS OF SOME OF THE UNIT DIRECTORIES HAS CHANGED FROM IBX 2.1. THIS IS TO
231	>	AVOID DUPLICATE PPU WARNINGS. PLEASE REMOVE EARLIER VERSIONS OF IBX BEFORE INSTALLING THIS
232	>	RELEASE.
233	>
234	>	NOTE: THE DBADMIN DEMO REQUIRES THAT THE MemDSLaz PACKAGE IS INSTALLED IN THE LAZARUS IDE.
235	>
236	>	1. IBExtract: Identity columns - add additional check for null column for generator name.
237	>
238	>	2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
239	>	The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
240	>	information). However, this is also a very useful mechanism for returning updated computed by
241	>	column values. Values returned as a result of executing an Insert or Update statement
242	>	replace existing values in the current row for each corresponding column.
243	>
244	>	Previously, if a dataset's select query included read only (computed by) fields then
245	>	an automatic row refresh was performed after an insert or update query had been processed,
246	>	irrespective of the setting of the "ForcedUpdates" property. This has changed such
247	>	that an automatic refresh is no longer performed if an insert or update query contains
248	>	a returning clause that updates one or more fields on the current row. A full row
249	>	refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
250	>	field values and the select query contains read only fields. Use of Insert/update
251	>	returning should be significantly more efficient than executing a refresh query.
252	>
253	>	This behaviour change is intended to be backwards compatible and there should be no need to change
254	>	existing programs, other than to improve performance by using the new capability.
255	>
256	>	3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
257	>	they are called when the dataset row is being deleted, there is no value in
258	>	updating the current record from the query result. Instead, a new event handler
259	>	"OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
260	>	an OnDeleteReturning event handler is provided then it is called with the IResults returned
261	>	by the query. The event handler can then interrogate the query results and
262	>	perform whatever action is necessary. For example to confirm, to the user,
263	>	the deletion of a row with the returned values.
264	>
265	>	4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
266	>	any Computed By or Identity Columns. The IBTables example has been updated to
267	>	illustrate the computation of the employee Full Name on update.
268	>
269	>	5. TIBTable: The GeneratorField property is now published.
270	>
271	>	6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
272	>	When InsertSQL is generated, the Identity columns are not included in the list of values to
273	>	be inserted. A RETURNING clause is added to the insert statement to return the value of
274	>	each Identity column after the insert is executed.
275	>
276	>	7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
277	>	Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
278	>	Insert..Returning clause.
279	>
280	>	8. TIBGenerator: small performance improvement by not preparing query each time
281	>	a new value is generated.
282	>
283	>	9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
284	>
285	>	10. Property editors will now sync table name to a System Table when "Include System
286	>	Tables" is selected and the query is for a System Table.
287	>
288	>	11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
289	>	values are no longer converted to milliseconds from TDateTime and then back again
290	>	to TDateTime (the conversion to milliseconds is the default TDataset approach).
291	>
292	>	12. Property Editors handling of Stored Procedures.
293	>	* Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
294	>	which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
295	>	query).
296	>	* Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
297	>
298	>	13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
299	>	can be used to select a package. If non-empty, the stored procedure name is
300	>	expected to be a stored procedure defined in the specified package and the
301	>	generated SQL will be as required for a stored procedure located in a package.
302	>
303	>	14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
304	>	a "Package Name" drop down box to allow selection of a Firebird 3 Package from
305	>	which a stored procedure can be selected. With no package name selected, non-package
306	>	stored procedures are listed.
307	>
308	>	15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
309	>	for password on reconnect.
310	>
311	>	16. TIBDatabase: use IAttachment for connection default character set id, code page
312	>	and character set name.
313	>
314	>	17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
315	>	DB info lookups"
316	>
317	>	18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
318	>
319	>	19. Add a property Editor for TIBUpdate.RefreshSQL.
320	>
321	>	20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
322	>	parameters. This stops an exception being raised when the field cannot be
323	>	located in the record buffer.
324	>
325	>	21. Property Editors now automatically include System Tables when opened and when the query table
326	>	is a System Table.
327	>
328	>	22. IBServices: SQRB and SRB buffers are now reset when service query throws an exception.
329	>	This avoids errors due to a stale SQRB or SRB being used for the next query.
330	>
331	>	23. IBServices: Service attach parameters now include "expected_db". This is used to
332	>	add the SPB item isc_spb_expected_db. This names a database using
333	>	an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
334	>	database. examples/services re-written to illustrate use of "expected_db".
335	>
336	>	24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
337	>	This avoids truncated backups when the server returns a timeout (busy) response.
338	>
339	>	25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
340	>
341	>	26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
342	>	databasenames. These are respectively expanded to the local system's temp directory
343	>	(including trailing delimiter) or to a prescribed data directory (including
344	>	trailing delimiter). Under Unix systems the data directory is a hidden directory
345	>	in the user's home directory. The hidden directory name is either the string returned
346	>	from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
347	>	Under Windows, the directory is the same as the Data Directory as decribed
348	>	above but instead prefixed by the User's application data path. These may be
349	>	used to improve application portability for Personal Databases.
350	>
351	>	27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
352	>	this has not worked for a long time and is not useful either. FieldDefs should be
353	>	managed using the Fields Editor as with any other dataset. To access the fields
354	>	editor for a TIBTable component, double click on the component. The fields editor
355	>	is then displayed.
356	>
357	>	28. TIBDatabaseInfo: new properties/function
358	>	* DateDBCreated (returns date/time database created)
359	>	* TransactionCount (returns no. of active transactions)
360	>	* GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
361	>	* PagesFree (Firebird 3 or later)
362	>	* PagesUsed (Firebird 3 or later)
363	>	* Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
364	>	* EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
365	>
366	>	29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
367	>
368	>	30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
369	>
370	>	31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
371	>	the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
372	>
373	>	32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
374	>	in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
375	>	firing during backup and restore.
376	>
377	>	33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
378	>	for verbose output using the new property "StatisticsRequested".
379	>	see https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-util-gbak.html#rnfb25-util-gbakstats
380	>
381	>	34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
382	>
383	>	35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
384	>	palette. This uses the online validation feature added in Firebird 2.5. The
385	>	services's properties enable inclusion/exclusion of tables and indexes using
386	>	regular expressions. See.
387	>	https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-apiods-api.html#rnfb25-apiods-api-onlinevalidation
388	>
389	>	36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
390	>	option on a database.
391	>
392	>	37. TIBCustomService: Assign method implemented to allow copying of service login
393	>	context between service API components. "Detach" method now only detaches
394	>	service when last reference to the service interface detaches. Tidy up of
395	>	code for SetActive and Attach methods including password hiding.
396	>
397	>	38. TIBDatabase: new properties: AuthenticationMethod and RemoteProtocol. Read only
398	>	and used to determine the auth method and protocol used for the connection.
399	>
400	>	39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
401	>	a Create Database Statement generated by IBX.
402	>
403	>	40. All IBServices now have an additional published property "PortNo". This may
404	>	be set to a non-standard port number when necessary. If zero then the default
405	>	port number is used.
406	>
407	>	41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
408	>	and not just the mouse.
409	>
410	>	42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
411	>
412	>	43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
413	>	image index and selected image index for each node to be set from a database field.
414	>
415	>	44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
416	>	then database schema includes grants to all users. If not present then the
417	>	only user grants included are those to User PUBLIC.
418	>
419	>	45. TIBTreeView: performance improvement. When expanding include both expanded node
420	>	and child nodes in dataset.
421	>
422	>
423	>	IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
424	>
425	>	1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
426	>	changes.
427	>
428	>	2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
429	>	Bug could result in truncated multi-byte character set values.
430	>
431	>	3. Changes consequential on moving fbintf character set utility functions from
432	>	IFirebirdAPI to IAttachment.
433	>
434	>	4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
435	>
436	>	5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
437	>	results in autocomplete ignoring prefix text.
438	>
439	>	6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
440	>	entering a new name into the text box.
441	>
442	>	7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
443	>	Firebird rather than recomputing it.
444	>
445	>	8. Property Editor positioning tidy up: All IBX Property editors should now be
446	>	screen centre. Previously some were "poDesigned" which may be inappropriate
447	>	for multi monitor desktops.
448	>
449	>	10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
450	>
451	>	11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
452	>	a transaction and always reset the object.
453	>
454	>	12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
455	>
456	>	13. TIBXScript: Allow for override of database filename in Create Database statements.
457	>
458	>	14. IBLocaldb: Support initialisation of the database from an SQL script in addition
459	>	to a gbak format archive.
460	>
461	>	15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
462	>
463	>	16. IBLocaldb: Drop database if error creating an empty database.
464	>
465	>	17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
466	>	unless selected node not in current dataset.
467	>
468	>	18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
469	>	to TIBCustomService, and IBlocalDB code tidy up.
470	>
471	>	19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
472	>	behaviour due to uninitialised variable.
473	>
474	>	20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
475	>	integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
476	>
477	>	21. IBSQL: When Database changed ensure that all resources are freed.
478	>
479	>	22. IBCustomDataset: When database changed ensure that queries an unprepared.
480	>
481	>	23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
482	>	* Line Wrap on SQL Token boundaries (on user command)
483	>	* auto-complete table names in drop down list of table names
484	>	* Double click on tablename or field name adds to SQL text
485	>
486	>	24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
487	>
488	>	25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
489	>	TVariantArray. Seems to avoid memory corruption in Windows (probably a
490	>	workaround for a problem in fpc 3.0.4 win64).
491	>
492	>	26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
493	>
494	>	27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
495	>
496	>	IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
497	>
498	>	1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
499	>	include remote system name.
500	>
501	>	2. TIBExtract: No longer include comment header and COMMIT statement for empty
502	>	tables when data included in output.
503	>
504	>	3. Profiling: IBSQL now has conditional compilation flags to enable query performance
505	>	and timing information to be written to stdout. This may be used to locate
506	>	performance bottlenecks.
507	>
508	>	4. SQLParser: only call "OnChanging" event handler when value is different.
509	>
510	>	5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
511	>
512	>	6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
513	>	that BindFields is called when the query is next activated. Avoids FieldName
514	>	not found error.
515	>
516	>	7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
517	>	purpose and allows the programmer to define any action they want for Update, Insert
518	>	or Delete. This may be complex SQL (similar to a Trigger), application specific
519	>	filtering of updates, or use of statements such as Grant or Revoke instead of
520	>	normal DML. See User Manual for more information.
521	>
522	>	IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
523	>
524	>	1. TIBEvents: Fix uninitialised variable that could result in lost events.
525	>
526	>	2. TIBExtract: Added support for FB3 "USAGE" privilege.
527	>
528	>	3. TIBExtract: data formatted as Charset set "octets" is now output using
529	>	hexadecimal notation.
530	>
531	>	4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
532	>	using a simple XML format.
533	>
534	>	5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
535	>	grants to these objects.
536	>
537	>	6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
538	>	dependency problems restoring complex databases.
539	>
540	>	7. TIBXScript: This component has been restructured to allow for the processing of
541	>	embedded XML in INSERT statements and to support interactive sources in addition
542	>	to non-interactive data sources such as files.
543	>
544	>	8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
545	>
546	>	9. TIBXScript: ISQL compatiable Set statements are now supported:
547	>	SET SQL DIALECT
548	>	SET TERM
549	>	SET AUTODDL
550	>	SET BAIL
551	>	SET ECHO
552	>	SET COUNT
553	>	SET STATS
554	>	SET NAMES <character set>
555	>
556	>	10. IBVersion unit added to hold current IBX Version Number information.
557	>
558	>	11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
559	>	and domain definitions.
560	>
561	>	12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
562	>	fully supported.
563	>
564	>	13. TIBExtract: when a database dump includes data, the generator values are now also set.
565	>
566	>	14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
567	>
568	>	IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
569	>
570	>	See also doc/IBX4LazarusGuide.pdf for important information on
571	>	upgrading to IBX2.
572	>
573	>	1. Size property of TIBStringField is now the width in characters of the field
574	>	and not the byte length. This applies only to multi-byte character sets such
575	>	as UTF8. The original approach aligned with TStringField. However, the TStringField
576	>	code is not recognised as a bug and hence this change to align the behaviour.
577	>	The TStringField change is expected in fpc 3.2.0.
578	>
579	>	2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
580	>	true (default) then Size property value saved in the lfm is ignored. Size is
581	>	always set from the dynamic information read from the database. It is unclear
582	>	why anyone would want to override this and set Size to false.
583	>
584	>	3. ibxscript: should now handle correctly a Case..End statement within a procedure
585	>	block.
586	>
587	>	4. IBDatabase: new property - CreateIfNotExists. If true and database does not
588	>	exist when an attempt is made to connect to it (run time only) then an attempt
589	>	is made to create the database.
590	>
591	>	5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
592	>	has been successfully created as a result of a call to CreateDatabase or when
593	>	creating a database after it was found not to exist.
594	>
595	>	6.  DBControlGrid: a race condition could result in the wrong row image being
596	>	written to the cache. This has been avoided by a trip round the message
597	>	loop before rendering the row image.
598	>
599	>	7.  DBControlGrid: It is strongly recommended not to open the source DataSet for
600	>	a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
601	>	known to risk corrupt rendering of row images when the control is first
602	>	displayed. If necessary use "Application.QueueAsyncCall" to delay opening
603	>	of the dataset (see DBControlGrid examples) until the Form's Window has been created.
604	>
605	>	8.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
606	>	a TDateEdit control located on an editor panel.
607	>
608	>	9.  TIBExtract: brought up-to-date plus many bug fixes.
609	>
610	>	10. DBControlGrid: Removed memory leak when updating rows.
611	>
612	>	11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
613	>
614	>	IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
615	>
616	>	1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
617	>	when target codepage is CP_NONE. This is a workaround for
618	>	http://bugs.freepascal.org/view.php?id=30622.
619	>
620	>	2. DBLog option removed from TIBStatisticalService - not supported by server
621	>	since Firebird 1.5.
622	>
623	>	3. ibxscript: An error is no longer generated for "on commit preserve rows" or
624	>	similar.
625	>
626	>	4. IBCodePage: updated mapping between codepages and character id.
627	>
628	>	5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
629	>	Firebird. Character sets with a char width of two are not UTF16.
630	>
631	>	6. Strings received from the database are now always transliterated into UTF8
632	>	regardless of the database character set or connection character set. This
633	>	is for compatibility with the LCL.
634	>
635	>	IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
636	>
637	>	1. IBBlob: Defer reading of blob until read method called. This avoids having to
638	>	read in an entire blob just to get the size of the blob. General performance
639	>	improvement when opening datasets containing blobs.
640	>
641	>	2. Clearing a  Blob now sets the corresponding field's modified flag.
642	>
643	>	3. IBLookupCombo: When not performing auto-complete, original query sort order
644	>	is now used.
645	>
646	>	4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
647	>	determined.
648	>
649	>	5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
650	>
651	>	6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
652	>	lazarus 1.6.0
653	>
654	>	7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
655	>	compilation error.
656	>
657	>	IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
658	>
659	>	1. No character set specified for connection: when a text blob is retrieved, the
660	>	character set is determined by looking up the native character set using then
661	>	Firebird API. Otherwise a text mode blob is assumed to have the same character
662	>	set as the connection.
663	>
664	>	2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
665	>	for Login Dialog returing a change to the database path.
666	>
667	>	3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
668	>	to be changed from that given in the TIBDatabase/TIBServer component and for the
669	>	entered value to be saved on a project specific basis (design time only).
670	>
671	>	4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
672	>	column fieldname. If they are the same then it is acts as a look up for the KeyValue
673	>	Otherwise, it sets the column text to the selected ListField Value.
674	>
675	>	5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
676	>	column width.
677	>
678	>	6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
679	>	and a case insensitive search is requested.
680	>
681	>	7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
682	>	or column ListSource.
683	>
684	>	8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
685	>	unprepare) when closing and the text has not changed.
686	>
687	>	9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
688	>	Less likely to cause a cursor re-use error on Windows.
689	>
690	>	10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
691	>	Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
692	>
693	>	11. TIBTreeView: Guard against nil destination on record changed
694	>
695	>	12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
696	>	string type with the code page set to reflect the returned field encoding after
697	>	Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
698	>	earlier versions.
699	>
700	>	13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
701	>	will now result in transliteration to the code page specified for the Firebird driver
702	>	if the assigned string has a different code page. FPC 3.0.0 onwards only.
703	>
704	>	14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
705	>	is ignored and the lc_ctype value, when the database is opened, is set to align with
706	>	the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
707	>	platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
708	>	3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
709	>	the GETACP is used to determine the Windows code page.
710	>
711	>	15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
712	>	name used as the lc_ctype when the database was opened. Only valid while the
713	>	Database is connected.
714	>
715	>	16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
716	>	id that corresponds to the DefaultCharSetName.
717	>
718	>	IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
719	>
720	>	1. Unix: If Firebird Embedded Server shared object is loaded and a local database
721	>	path is given and database attach fails due to access permission issues on the
722	>	temp directory or security database, then the attach is retried with "localhost:"
723	>	prefixing the databasename. This should avoid problems when the database has to
724	>	be accessed by a local (e.g. classic) server and libfbembed is used.
725	>
726	>	2. Windows: revised search order for Firebird DLL:
727	>	i.   The Firebird Embedded Server in the application Directory.
728	>	ii.  If the FIREBIRD environment variable is set then the directory this
729	>	points to is searched for the FB Client DLL and then then underlying
730	>	"bin" directory.
731	>	iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
732	>	is used to locate the Firebird installation directory and the underlying
733	>	"bin" directory is searched for the FB Client DLL.
734	>	iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
735	>	are searched for the FB Client DLL.
736	>	v.   The PATH Environment variable is used to search for the FB Client DLL.
737	>	vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
738	>
739	>	3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
740	>	See doc/readme.scriptengine and example applications.
741	>
742	>	4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
743	>	simplify the use of the embedded firebird server on both Linux and Windows platforms.
744	>	See dpc/readme.localdatabase and example applications.
745	>
746	>	5. IBDynamicGrid: Reordering on column header click should now also work for
747	>	dynamic columns.
748	>
749	>	6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
750	>	between incrementing/decrementing the lock count and signalling the event.
751	>
752	>	IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
753	>
754	>	1.3.2 was never formally released and only made available as beta copies.
755	>
756	>	1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
757	>
758	>	2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
759	>
760	>	3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
761	>
762	>	4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
763	>	i.e. when it is a calculated field
764	>
765	>	5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
766	>	This problem was due to a race condition between recalculating row heights and
767	>	determining which row was selected by the mouse click. The row height calculation
768	>	is now deferred by an extra trip round the message loop allowing the row to
769	>	be always calculated on the current grid layout rather than risking it being
770	>	calculated on the grid layout after the expanded row has been shrunk.
771	>
772	>	6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
773	>	Windows.
774	>
775	>	7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
776	>	These properties allow the (Firebird) character set name for the field and the max number of bytes per character
777	>	to be determined at runtime. See doc/readme.charactersets.html.
778	>
779	>	8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
780	>	TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
781	>
782	>	9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
783	>	TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
784	>	1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
785	>
786	>	Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
787	>	from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
788	>	implies no truncation.
789	>
790	>	10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
791	>
792	>	11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
793	>	(avoids "Not in Edit Mode" error).
794	>
795	>	12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
796	>
797	>	13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
798	>	DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
799	>
800	>	14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
801	>
802	>	15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
803	>
804	>	16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
805	>
806	>	17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
807	>
808	>	IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
809	>
810	>	1.   OnCloseUp Event Handler added to TDBLookupProperties
811	>
812	>	2.   IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
813	>	problem with row size when exception is called.
814	>
815	>	3.   IBLookupComboEditBox: Force pending autocomplete on combobox exit.
816	>
817	>	4.   IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
818	>	in a TCustomComboBox and ignores return key if in a TCustomMemo
819	>
820	>	5.   IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
821	>	keyed in i.e. when autocomplete not performed
822	>
823	>	6.   Cleanup of "Uses" clauses and add console mode support. IBX should now support
824	>	console mode applications with all LCL required functions (builtin dialogs and
825	>	cursor management) centralised in the  IBDialogs unit. As long as "IBDialogs" is
826	>	not included in your project, IBX should compile and link with a console mode program.
827	>	See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
828	>	console mode application or the IDE will automatically assume that your
829	>	application is GUI based. Instead, you should include the ibexpressconsolemode package.
830	>
831	>	IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
832	>	to use the built in dialogs and cursor management. IBDialogs is
833	>	included by default if "ibexpress" is in your project source's "uses" clause.
834	>	This should be the case for all projects created through the IDE. This is why
835	>	you do not want to add the ibexpress package to console mode applications. The
836	>	ibexpressconsolemode package has been created to allow console mode programs
837	>	to avoid adding LCL dependencies when using IBX, while still having the
838	>	unit search paths set up correctly.
839	>
840	>	Existing users should check to ensure that the "ibexpress" unit is included in
841	>	each project's source file (*.lpr).
842	>
843	>	You may find that in order for the IDE to recognise that ibexpressconsolemode
844	>	exists, you have to first open the package in the IDE and then close it. This
845	>	adds it to the most recently accessed packages list. To make it permanently
846	>	available, add the package name to lazarus' staticpackages.inc file.
847	>
848	>	Thanks to Julio Jiménez for suggesting support of console mode.
849	>
850	>	7.   SQL Parser can now accept quoted strings that include new lines
851	>
852	>	8.   IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
853	>	of text on start of edit. This is particularly useful when tabbing to a
854	>	column and then inserting text.
855	>
856	>	9.   New Examples provided for IB Services and ISQLMonitor.
857	>
858	>	10. Fix error when writing to blob streams that recorded only the last buffer
859	>	write in the blob stream. In most cases, this did not cause a problem as the
860	>	IB Blob Stream is written in a single write. However, with the TDBImage, write
861	>	of a graphic type prefix was lost which caused a problem when the image could
862	>	not be automatically recognised.
863	>
864	>	11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
865	>	already open" errors due to random numbers used for the cursor name being identical.
866	>
867	>	12. IBTable: corrected error that could result in an "Index out of bounds" error
868	>	when opening the table and the Primary Key is the last or only column in the
869	>	table. Thanks to Rick Hoover for the fix.
870	>
871	>	13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
872	>	of "UTF-8", and update list of available database character sets. Existing
873	>	users should check the current lc_ctype setting in their applications.
874	>
875	>	IBX Change Log  version  (1.2-4) Sat, 09 May 2015 12:38:29 +0100
876	>
877	>	1.  Firebird Services: avoid List Index error when opening a service with an
878	>	empty Params property.
879	>
880	>	2.  IBControls: Fix problem with new link mechanism introduced in 1.2.3.
881	>	Link now set up in Loaded method - avoids occasional failure to apply
882	>	SQL markup on initial open.
883	>
884	>	3.  "Employees" example performance improvements when scrolling.
885	>
886	>	4.  DBControlGrid: Correctly handle edit panel removal when panel is child control of a
887	>	TFrame. Force recaching of selected frame to avoid GTK race (results in a
888	>	random image cached).
889	>
890	>	5.  DBControlGrid: Should now react to changes in panel height at run time.
891	>
892	>	6.  IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid
893	>	even when further rows exist.
894	>
895	>	7.  DBControlGrid: DefaultRowHeight is no longer a published property as it should
896	>	always be derived from panel height and setting this property can cause confusion.
897	>	Note for existing projects: to avoid a missing property error at run time,
898	>	each form using the DBControlGrid must be opened, updated and saved in the IDE
899	>	in order to remove the property value from the lfm.
900	>
901	>
902	>	IBX Change Log  version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
903	>
904	>	1.  TIBStoredProc. Prepare now called by ParamByName to avoid need to always
905	>	call Prepare before setting parameter values.
906	>
907	>	2.  Error message on ParamByName (all cases) not found now includes name of missing parameter.
908	>
909	>	3.  Code tidyup and more robust handling of dsql information result vector.
910	>
911	>	4.  Support for centralised handling of transaction status changes. TIBTransaction
912	>	has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
913	>	and "AfterExecQuery". The first three are called after the same event is called
914	>	for an IBCustomDataSet descendent using the Transaction. The fourth is called
915	>	after a call to TIBSQL.ExecQuery, again using this transaction. These new events
916	>	enable monitoring of transaction status changes for a given transaction to be
917	>	handled in a single place. For example, when a change to the dataset occurs
918	>	an indicator can be set that shows the user that in order to save changes,
919	>	the transaction should be committed.  Rather than doing this per dataset, this
920	>	can now be done per transaction.
921	>
922	>	5.  TDataSet.CheckBrowseMode automatically posts changes to the current row when
923	>	the dataset is scrolled. However, any changes to the current row are, by default,
924	>	discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
925	>	have a new property "DataSetCloseAction" that adds automatic posting of changes
926	>	on dataset close. If this property is set to dcDiscardChanges (default) then the
927	>	behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
928	>	then IBX will attempt to post any unsaved changes before the dataset is closed
929	>	(and after the BeforeClose event handler is called). The exception is when the
930	>	dataset is being closed as a result of a transaction rollback. In this case,
931	>	no action is taken and any unsaved  changes are discarded. This avoids both
932	>	unnecessary overhead and the risk that a validation error may occur in the Post
933	>	raising an exception and thereby preventing a rollback.
934	>
935	>	6.  String Field sizes and Display Widths should now be correct for multi-byte character sets.
936	>	In earlier versions, the Display Width was set to the maximum byte width rather than the character
937	>	width. Display Widths are now corrected by dividing by the max byte width per character.
938	>	For UTF8 character sets, the byte width is four and hence the Display Width will be
939	>	the byte width divided by 4. The byte width of each character set is determined
940	>	dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
941	>	system table. (see also http://bugs.freepascal.org/view.php?id=27766).
942	>
943	>	7.  SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
944	>
945	>	8.  IBLookupComboEditBox: List should now always be restored to full list when the
946	>	control loses focus. Default Key press default interval reduced to 200ms.
947	>
948	>	9.  DBControlGrid: Ensure that selection is changed to newly appended row, even
949	>	when dataset rows are less than visible rows.
950	>
951	>	10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
952	>	does not exist or DataSet is empty. More responsive on dataset open. New event
953	>	OnRestorePosition. Column sort disabled if no header row.
954	>
955	>	11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
956	>	while dataset state is dsInsert. Avoids posting errors.
957	>
958	>	12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
959	>	avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
960	>
961	>	13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
962	>
963	>	14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
964	>	to solve a specific problem. That is when the dataset cursor is moved (e.g. by
965	>	a grid mouse click and the current row is being edited or inserted. In this case, TDataset
966	>	always "posts" the current record regardless or whether or not it may be more appropriate
967	>	to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
968	>	"MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
969	>	as the first action of the "Post" method and allows the handler to convert the Post
970	>	into a Cancel if that is the appropriate action on moving to a different row. This is
971	>	achieved by returning with "CancelPost" argument set to true. Note that an exception could be
972	>	raised here, but it may still be more appropriate to validate a post and signal
973	>	a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
974	>
975	>	15. On Unix derived systems, the Firebird library name can now be given as a colon
976	>	separated list. Each library name on the list is tried in turn, in left to right
977	>	order with the first found being used as the firebird library. By default, on Linux,
978	>	the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
979	>	overidden by the FBLIB environment variable or the OnGetLibraryName function.
980	>
981	>	Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
982	>	then it will still attempt to access the database via the Firebird Server and will
983	>	require a username and password. If only the pathname is given, then the username
984	>	and password should be omitted and the unix file permissions are used to grant
985	>	access.
986	>
987	>	IBX Change Log  version  (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
988	>
989	>	1.  A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
990	>	rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
991	>	that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
992	>	corresponds to a row of the linked DataSource. Any data aware control on the
993	>	replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
994	>
995	>	2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
996	>	When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
997	>	takes place during database access. This may be useful when there are performance issues with
998	>	the change of cursor. Setting the property to false suppresses the change of cursor.
999	>
1000	>	3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
1001	>	and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
1002	>	Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
1003	>	making all changes permanent immediately rather than when the transaction is explicitly
1004	>	committed.
1005	>
1006	>	4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
1007	>	using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
1008	>
1009	>	IBX Change Log  version      (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
1010	>
1011	>	Development version only.
1012	>
1013	>	IBX Change Log  version   (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
1014
1015		1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
1016		This is typically used during an "OnBeforeOpen" event handler to manipulate the
#	Line 16 | Line 1028 | IBX Change Log  version
1028		TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
1029		of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
1030		to revise the available list and restrict it to items that are prefixed by the
1031	<	typed text (either case sensitive or case insenstive). Autoinsert allows a
1031	>	typed text (either case sensitive or case insensitive). Autoinsert allows a
1032		newly typed entry to be added to the list dataset and included in the available
1033		list items.
1034
#	Line 58 | Line 1070 | IBX Change Log  version
1070		8. Three new examples illustrate the use of the new IB Controls
1071
1072
1073	<	IBX Change Log  version                      (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
1073	>	IBX Change Log  version  (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
1074
1075		1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
1076		setting performance. See "readme.field+param.names in the doc folder.(Thanks to

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