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1 < IBX Change Log  version                                                    (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
1 > IBX Change Log  version (2.6-1 Build 13985) Mon, 17 Jul 2023 14:16:41 +0100
2 >
3 > 1. Maintenance update of 2.6.0. This version is still at beta.
4 >
5 > 2. Reverse out changes to DrawCellText signature in IBArrayGrid and IBDynamic Grid.
6 >   See https://gitlab.com/freepascal.org/lazarus/lazarus/-/commit/53aaae9c5e2a5edac5b1d2f70739a8ef7b0a9623
7 >
8 > 3. ibxscript: When parsing a store procedure or function with a variable name
9 >   enclosed in doublequotes, the double quotes are no longer removed.
10 >
11 > IBX Change Log  version (2.6-0 Build 13976) Thu, 22 Jun 2023 13:49:22 +0100
12 >
13 > NOTE: THIS VERSION RE-WRITES THE INTERNAL BUFFER MANAGER AND SHOULD BE CONSIDERED
14 >      AS BETA SOFTWARE. EVEN THOUGH IT HAS PASSED ALL REGRESSION TESTS, IT CANNOT
15 >      BE ASSUMED TO BE PRODUCTION READY UNTIL WIDER USE. PLEASE REPORT ANY
16 >      ISSUES TO support@mwasoftware.co.uk
17 >
18 > 1. Complete rewrite of internal buffer management in order to improve performance
19 >   and maintainability. Highlights:
20 >
21 >   * Extending the size of the buffer pool no longer has to copy the entire record
22 >     cache. Instead, a new extent is simply added to the buffer pool.
23 >   * A memory to memory copy of each display buffer now is avoided when scolling the
24 >     dataset.
25 >   * A separate set of buffers is now used for calculated fields. This avoids
26 >     having to keep copies of calculated field values in the buffer cache.
27 >   * Compact bitmaps are used to record null status and need to refresh in each
28 >     buffer.
29 >   * Display buffer type changed from PChar to TRecordBuffer in line with change of
30 >     buffer type in FCL-DB.
31 >
32 > 2. TIBUpdateSQL: changes to SQL text will close linked dataset if open. This is
33 >   to ensure same behaviour as TIBDataset, TIBTable and TIBStoredProcedure.
34 >
35 > 3. TField Provider Flags: pfRefreshOnInsert and pfRefreshOnUpdate are now supported.
36 >   If either or both of these flags are set at design time (using the fields editor)
37 >   then this forces a row refresh on respectively insert or update, or both, when the
38 >   corresponding field is not present in an SQL RETURNING clause.
39 >
40 > 4. TIBCustomDataset.FieldDefsFromQuery moved to a helper class (TFieldDefsMaker) in order to improve
41 >   maintainability and readability and to add identification of primary key fields.
42 >
43 > 5. TIBQuery, TIBDataset and TIBTable. Traditionally, IBX has implemented the Refresh method
44 >   as a refresh of the current row. However, this is different behaviour to that described
45 >   in the FPC documentation for TDataset.Refresh which is described as "refetches the data in
46 >   the dataset from the underlying database, and attempts to reposition the cursor on
47 >   the same record as it was". IBX now complies with the FPC definition of Refresh.
48 >
49 > 6. A progammatic Row Refresh should no longer be required.
50 >   Use Insert/Update... returning to refresh any fields that may change following an
51 >   insert or update i.e. Identify fields on Insert only, Computed By, Blob and array fields
52 >   on both. If there are any other fields (e.g. updated by triggers) set the appropriate ProviderFlag
53 >   for the field at Design Time to force a row refresh if not in the returning clause.
54 >
55 > 7. It should now be possible to insert a row into an empty unidirectional dataset.
56 >
57 > 8. New TIBQuery, TIBDataSet and TIBTable property: BufferChunksInFirstBlock (default 50).
58 >   This gives the number of buffers in the initial block for the buffer pool in
59 >   bi-directional datasets. BufferChunks (default 1000) gives the number of buffers
60 >   in subsequent buffer pool blocks. This avoids large and mostly unused memory allocations
61 >   for small datasets.
62 >
63 > IBX Change Log  version (2.5-1 Build 13927) Tue, 6 Dec 2022 23:13:00 +0000
64 >
65 > 1. IBCustomDataset: avoid problem with additions to TFieldType by using a subset instead.
66 >
67 > 2. TIBDynamicGrid: change DrawCellText declaration to comply with laz 2.3.0
68 >
69 > 3. TIBArrayGrid: change DrawCellText declaration to comply with laz 2.3.0
70 >
71 > IBX Change Log  version (2.5-0 Build 13868) Fri, 29 Jul 2022 09:52:01 +0100
72 >
73 > 1. TIBTransaction: new properties
74 >    property TransactionID: integer read GetTransactionID;
75 >    property IsReadOnly: boolean read GetIsReadOnly;
76 >    {published}
77 >    property TransactionName: string read FTransactionName write SetTransactionName;
78 >
79 > 2. IBCustomDataset: per row blob and array buffer cached clear before processing
80 >   Insert or Update...Returning. This allows blobs and arrays to be returned
81 >   by the statement.
82 >
83 > 3. TSQLXMLReader moved from IBXScript to package fbintf unit IBUtils.
84 >
85 > 4. TransactionName initialised to a newly generated GUID if empty.
86 >
87 > 5. New unit: IBJournal. This provides the TIBJournal component which is a wrapper
88 >   for the fbintf package's journaling capability. TIBJournal is used to set the
89 >   file path and filename for the journal file and to Enabled (start journaling) and
90 >   disable (stop journaling). See fbintf/doc/README.ClientSideJournaling.pdf for
91 >   more information, and comments in IBJournal.pas.
92 >
93 > 6. TIBDatabase.InternalTransaction is now a read only transaction.
94 >
95 > 7. Bug fix: blob id no longer set to null on update when blob has not been
96 >   retrieved.
97 >
98 > 8. Row auto refreshed on update/insert if blob or array field updated and field
99 >   not in a returning clause.
100 >
101 > 9. ColumnCount moved from record buffer header to a single per dataset count. Reduces
102 >   buffer overhead and avoids problem when refresh query has a different column
103 >   count to select query i.e. incorrectly changing number of columns.
104 >
105 > 10. IBExtract: support added for UDR Functions, Procedure and Trigger declarations.
106 >
107 > 11. TIBDatabaseInfo. New property FirebirdVersion. This returns the current Firebird version
108 >    string. Note that the Version property returns an InterBase compatible version string.
109 >
110 > 12. IBExtract: ensure sql identifiers returned as a LIST are always quoted.
111 >
112 > IBX Change Log  version (2.5-0 Build 12933) Mon, 29 Nov 2021 14:59:54 +0000
113 >
114 > 1. IBCustomDataset: Modify TISQL component now defaults to GoToFirstRecordOnExecute := true.
115 >   This is for compatibility with Firebird 5 where Update...Returning can return
116 >   a cursor.
117 >
118 > IBX Change Log  version (2.4-3 Build 12886) Sat, 23 Oct 2021 14:58:30 +0100
119 >
120 > 1. Add try-..except check when initially loading library in IDE. This should
121 > ensure that IDE continues to load even when a failure occurs in IBX load
122 > library.
123 >
124 > 2. IBXScript: now recognises a CASE...END block within a stored procedure and
125 >   hence will correctly detect end of the outer containing block when the block
126 >   contains a SELECT ... CASE ... END construct.
127 >
128 > 3. IBExtract: some further tidying up to remove extraneous white space.
129 >
130 > 4. IBCustomDataSet: DefaultFieldClasses array declaration updated to avoid compile time
131 >   errors when extra elements are added to DB.TFieldType.
132 >
133 > 5. IBUpdate: updated to reflect changes to ISQLParam.
134 >
135 > 6. IBXScript: now correctly parses a DECLARE statement which includes a quoted string.
136 >
137 > 7. IBExtract: for ODS >=13, increment generator value by one for ALTER SEQUENCE statement.
138 >
139 > 8. IBSQL: Support for scrollable cursors added (note: local databases only)
140 >
141 > IBX Change Log  version (2.4-2 Build 12773) Mon, 23 Aug 2021 11:59:42 +0100
142 >
143 > 1. TIBDatabaseInfo: review and tidy-up of property types. Most widen to int64 with the
144 >   exception of those defined to be one byte wide e.g. DBImplementationNo.
145 >
146 > 2. TIBSQL: Batch Update/Insert support added.
147 >
148 > 3. TIBStoredProc: when generating the SQL, the value of the StoredProcName property
149 >   is no longer automatically converted to upper case when it is syntactically a
150 >   SQL Identifier. This is to support the use of stored procedures defined e.g.
151 >   as CREATE PROCEDURE "iCASE".
152 >
153 >   There could be a backwards compatibility issue when the StoredProcName was entered
154 >   manually at design time. That is not selected from the drop down list. If the
155 >   StoredProcName is entered in mixed case and the procedure was declared e.g. as
156 >   CREATE PROCEDURE iCASE, then the SQL generation will be incorrect. You should
157 >   ensure that the value of the StoredProcName is all upper case, unless it was
158 >   declared under dialect 3 and explicitly as mixed case (i.e. delimited by double
159 >   quotes).
160 >
161 >   Note that when a stored procedure name was declared delimited in double quotes,
162 >   as in the first example above, the value of the StoredProcName property must not
163 >   include the delimiters (double quotes).
164 >
165 > 4. IBXUpgradeConfFile: an exception is now raised if a patch file specified in
166 >   upgrade.conf was not found. This replaces silently ignoring the problem.
167 >
168 > 5. TIBLocalDBSupport: new property "SectionHeaderTemplate". This defaults to
169 >   'Version.%.3d' and is used to generate the section header names (for a given
170 >   version no.) in the upgrade.conf file.
171 >
172 > IBX Change Log  version (2.4-1 Build 12550) Wed, 23 Jun 2021 13:59:14 +0100
173 >
174 > 1. -c command line option added to fbsql example program. Used to set connection
175 >   character set.
176 >
177 > IBX Change Log  version (2.4-0 Build 12543) Mon, 22 Feb 2021 11:00:08 +0000
178 >
179 > 1. Firebird 4 support added.
180 >
181 > 2. New FB4 data types TIME WITH TIME ZONE, TIMESTAMP WITH TIME ZONE, DECFLOAT and
182 >   extended precision NUMERIC fields are supported.
183 >
184 > 3. TFmtBCDField is used to support access to DECFLOAT and extended precision NUMERIC fields.
185 >
186 > 4. TIBDateTimeField and TIBTimeField are introduced in support of TIMESTAMP WITH TIME ZONE
187 >   and TIME WITH TIME ZONE fields. These inherit from TDateTimeField.
188 >
189 > 5. IBExtract now supports FB4 enhancements:
190 >   - new data types as above
191 >   - Identity column extensions
192 >   - Default user role
193 >   - SQL Security clause for Database, Tables, Procedures, Functions and Triggers
194 >   - Internal Functions
195 >
196 > 6. IBExtract: new event: OnExtractLines.
197 >
198 > 7. IBExtract: revert create trigger to legacy syntax see Firebird CORE-6243, CORE-5545 and DOC-145
199 >
200 > 8. IBXServices: Server version no. parsing now allows any letter before major version number
201 >   and is no longer restricted to 'V' e.g. "LI-T4.0.0.1436 Firebird 4.0 Beta 1"
202 >
203 > 9. TIBDataSet and TIBQuery: new property TZTextOption. Used to determine the default
204 >   format for rendering a time zone.
205 >
206 > 10. TIBDataSet and TIBQuery: new property DefaultTZDate. Used to provide the default date
207 >     to convert TIME WITH TIME ZONE data type values to and from GMT.
208 >
209 > 11. Unit name IBTypes changed to IBInternals. Internal interfaces TIBGUIInterface and TIBTimerInf renamed to
210 >    IIBGUIInterface and IIBTimerInf respectively.
211 >
212 > 12. Constants: DPBPrefix and TPBPrefix moved to IB unit. DPBConstantNames and TPBConstantNames
213 >    now accessible as properties of TIBDatabase and TIBTransaction respectively.
214 >
215 > 13. String Fields: when a fixed character with (CHAR) field is returned, it is now
216 >    truncated to its fixed character width rather than being right padded with
217 >    white space to the maximum data size.
218 >
219 > 14. TIBTable.Empty table. In additional to deleting all records in the underlying
220 >    table, the internal buffers are now also flushed ensuring that the TIBTable is
221 >    also empty.
222 >
223 > 15. TBatchSQLStatementReader: Line buffer is now cleared on call to reset.
224 >
225 > 16. TIBXControlService descendents: DatabaseName may now be set using a database
226 >    connect string. The database name is extracted from the connect string.
227 >
228 > 17. DBControlGrid: Minor bug fixes. avoid AV on form closure, avoid black panel
229 >
230 > 18. TIBExtract: Data type of COMPUTED By columns is no longer included in SQL.
231 >
232 > 19. Local database on Linux and with legacy API and FB 2.5 embedded server: fixed problem with password
233 >    not being present as required.
234 >
235 > 20. IBTreeView split into DBTreeView and IBTreeView. This former is an IBX indepedent
236 >    version that can be customised to work with other database drivers.
237 >
238 > 21. ISQLMonitor: use platform specific LineEnding to delimit messages. Avoids
239 >    unnecessary CR at end of line on Unix platforms.
240 >
241 > 22. ISQLMonitor: Unix: Default semaphore timeout increased from 1 second to 10
242 >    seconds in order to reduce risk of message loss.
243 >
244 > 23. ISQLMonitor: read and write count statistics now available via:
245 >      property TIBSQLMonitor.ReadCount;
246 >      IIBSQLMonitorHook.GetWriteCount: integer;
247 >
248 > 24. ISQLMonitor tidy up and unit split. IPC functions moved to new unit IBIPC.
249 >
250 > IBX Change Log  version (2.3-5 Build 12350) Tue, 25 Aug 2020 16:11:02 +0100
251 >
252 > 1.  TIBStringField: when a string value is read from a dataset buffer, if the
253 >    number of UTF8 characters exceeds the string size then string is truncated
254 >    to the maximum string size. This is  usually a problem with fixed width columns
255 >    right padded with white space.
256 >
257 > 2.  SQLFiltered and SQLFilterParams added to TIBQuery, TIBTable and TIBDataset.
258 >    If SQLFiltered is set then when a dataset is opened, each line in the
259 >    SQLFilterParams property is assumed to be a SQL condition clause and
260 >    ANDed into the Where clause of the SQL Select statement provided as a
261 >    dataset property. Each such SQL condition thus acts as an additional filter
262 >    on the dataset.
263 >
264 > 3.  The Filtered property inherited from TDataset is no longer used for SQL (server
265 >    side filters).
266 >
267 > 4. IBLookupComboEditBox: Selection should no longer reset to start of text when
268 >   text matches complete entry.
269 >
270 > 5. TIBDataLink: Detail Dataset params not refreshed unless both master and detail
271 >   dataset are active (avoids risk of access violation if master is inactive)
272 >
273 > 6. TIBEvents: Registered property can now be set at design time even if database not open
274 >
275 > 7. TIBEvents: component now correctly re-initialised after call to UnregisterEvents.
276 >   This should prevent "spillover" of events between sessions.
277 >
278 > 8. TIBCustomDataset: GetNextRecord now called when reseting to first record of a unidirectional dataset.
279 >   This should ensure that the internal buffer is set up correctly and avoids
280 >   a duplicate initial row.
281 >
282 > 9. TIBStringField: DataSize now given as byte size of string less trailing any zero character.
283 >   That is, the DataSize should be the field size * character set width. The
284 >   value returned by DataSize is now the same as the Dataset buffer size reserved
285 >   for the field.
286 >
287 > 10. IBExtract: Tidyup of SQL generation. Avoid unnecessary double quotes.
288 >
289 > 11. TIBCustomDataset: Add checks on buffer sizes when copying data from row to field buffer
290 >    and vice-versa. This may result in an exception being raised (correctly) for
291 >    older programs when using dataset fields added to a form and the database has been
292 >    upgraded. For example, computed fields can change from 32-bit to 64-bit integers.
293 >    In such cases, the field needs to be deleted in the IDE fields editor and then
294 >    added back in.
295 >
296 > 12. IBCustomDataSet: CanInsert, CanEdit, CanDelete and CanRefresh updated to return
297 >    false if query contains only white space and not just empty.
298 >
299 > 12. IBCustomDataset: Blob data is now cleared when TDataSet.Cancel is called. This
300 >    should ensure that (e.g.) a TDBMemo is correctly refreshed after a dataset edit
301 >    is cancelled.
302 >
303 > 13. IBCustomDataset: SetArrayIntf should no longer cause an access violation if
304 >    called on a null field.
305 >
306 > 14. IBCustomDataSet: An access violation should no longer occur when calling CancelUpdates
307 >    results in an empty dataTC86                Client side Filtered Dataset    1       X
308 > set.
309 >
310 > 15. IBCustomDataSet: OnUpdateError should now be called in all circumstances when
311 >    a cached update is applied and an exception is raised.
312 >
313 > 16. IBCustomDataSet: Avoid access violation when SetBookmarkData called with nil pointer.
314 >
315 > 17. Console Mode Local Database support: backup/restore should now work correctly.
316 >
317 > 18. Local Database Support: if an upgrade fails, a downgrade is now performed if
318 >    possible and an exception raised.
319 >
320 > 19. MinimumVersionNo added to Local Database Support. Database will not open if
321 >    below this version no. and upgrade not possible.
322 >
323 > IBX Change Log  version (2.3-4 Build 12041) Fri, 17 Apr 2020 14:00:32 +0100
324 >
325 > 1.  TIBXDataSet and Generators: Generator Names that are not all upper case or
326 >    not SQL Identifiers are now supported.
327 >
328 > 2.  TIBXScript: Set Generator is no longer rejected as unrecognised SQL and is
329 >    passed to the Firebird engine for execution.
330 >
331 > 3.  TIBDataSet: Unidirectional datasets now give an error message if an attempt
332 >    is made to scroll back.
333 >
334 > 4.  New unit: IBMessages.pas. Contains only messages used by IBX and not FBIntf
335 >
336 > 5. TIBLookupComboEditBox: When generating auto-complete SQL, the ListField is now
337 >   only enclosed in double quotes in SQL dialect 3 and when it needs to be.
338 >
339 > 6. TIBLookupComboEditBox: when the list source opens, the ListField name is now
340 >   validated. If no match is found in the list of field names and the database has
341 >   been opened in SQL Dialect 3, then the ListField Name is converted to upper case
342 >   if it then matches a field name. Otherwise, a Listfield not valid exception occurs.
343 >
344 > 7. IBGeneratoreditor.pas: Add missing parenthesis around "IS" statement for compliance
345 >   with fpc 3.2.
346 >
347 > IBX Change Log  version (2.3-3 Build 11512) Fri, 28 Dec 2018 10:04:17 +0000
348 >
349 >
350 > 1. New property for TIBDatabase and TIBXServicesConnection. This is "ConfigOverrides"
351 >   and is used to override the default settings in the client side "firebird.conf" This
352 >   includes "WireCompression" and "WireCrypt". The value of this property is a "TStrings".
353 >   Each line of the string list should be a setting in the same format as "firebird.conf".
354 >   For example "WireCompression = true" in order to request wire compression on the client side.
355 >
356 >   Note: explicit settings in the client side "firebird.conf" appear to take precedence
357 >   over settings given in TIBDatabase and TIBXServicesConnection. Many client side settings
358 >   also require a compatible setting in the server side "firebird.conf". For example
359 >   "WireCompression = true" must also be set in the server's "firebird.conf" for wire
360 >   compression to be used.
361 >
362 >   Whether or not WireCompression or WireCrypt are in use can be checked using the information
363 >   returned with the Client/Server protocol version. See ibx/examples/dbadmin and
364 >   ibx/examples/dbinfo for examples of how to display this information.
365 >
366 > 2. New property for TIBDatabase and TIBXServicesConnection: "WireCompression". This
367 >   is a "convenience" property. If set the "WireCompression=true" is added to the
368 >   ConfigOverrides. If unchecked then this setting is removed.
369 >
370 > 3. TIBExtract: 64-bit integer types are now correctly extracted as "BIGINT" and
371 >   not "INT64".
372 >
373 > 4. New published properties for TIBCSVDataOut, TIBInsertStmtsOut and TIBBlockFormatOut
374 >   These are:
375 >    property TimestampFormat: string;
376 >    property DateFormat: string;
377 >    property TimeFormat: string;
378 >
379 >   Respectively, these provide the date time format templates for SQL types: TIMESTAMP,
380 >   DATETIME and TIME. The format strings use the standard FPC date/time format
381 >   characters (see https://www.freepascal.org/docs-html/rtl/sysutils/formatchars.html).
382 >
383 >   If any of the above properties are set to an empty string, then the locale default
384 >   is used. This uses the ShortDateFormat and the LongTimeFormat. In timestamp, the
385 >   locale default is extended by appending '.zzz' to include milliseconds.
386 >
387 >   TIBCSVDataOut by default sets these properties to the empty string, while the other
388 >   two use: 'yyyy.mm.dd hh:nn:ss.zzz', 'yyyy.mm.dd' and 'hh:nn:ss.zzz' respectively.
389 >
390 > 5. New published property for TIBCSVDataOut:
391 >     property QuoteStrings: boolean (default true)
392 >
393 >   If false then strings are unquoted, otherwise, the QuoteChar property value is
394 >   used to delimit each and every string in the output.
395 >
396 > 6. New published properties for TIBCSVDataOut:
397 >    property FieldSeparator: string;
398 >    property HeaderSeparator: string;
399 >
400 >   Respectively, these provide the separator character(s) used to separate fields
401 >   in data and header rows. Both default to ','.
402 >
403 > 7. New published properties for TIBCSVDataOut and TIBBlockFormatOut:
404 >    TOnFormatTextString = procedure(sender: TObject; var TextString: string) of object;
405 >    property OnFormatTextString;
406 >
407 >   This event handler can be used to process text strings before they are included
408 >   in the output e.g. to replace unprintable characters with alternative strings.
409 >   This only applies to columns with an SQL Type of SQL_VARYING and SQL_TEXT.
410 >
411 > 8. TIBDataSet now raises an exception when ParamByName called with an invalid parameter name.
412 >   Uses "FindParam" if in order to find out if a parameter with a given name exists
413 >   and without raising and exception if it does not.
414 >
415 > 9. TIBQuery now uses IBX SQL Parser instead of the TParams SQL parser in order to ensure
416 >   consistency with SQL queries.
417 >
418 > 10. CaseSensitiveParameterNames property added to TIBSQL, TIBDataSet and TIBQuery.
419 >    When true, SQL statement parameter names are parsed case sensitive. Note for
420 >    TIBDataSet only applies to Select query.
421 >
422 > 11. IBEvents: removing a TIBEvent component from a form should no longer result in
423 >    an IDE exception.
424 >
425 > 12. LocalDBSupport: initial database creation should now work correctly
426 >    when the schema source is an sql file.
427 >
428 > 13. TIBCMLocalDBSupport: new event handler "property OnProgressEvent: TOnProgressEvent"
429 >    when defined, this handler will be called by the internal TIBXScript during
430 >    initial database creation when the schema source is an sql file and may be used
431 >    to provide a visual indication of progress in console mode.
432 >
433 > 14. TCustomIBLocalDBSupport: new public property "InOnCreateDB: boolean". This is set
434 >    to true while a new local database is being created and its schema populated.
435 >    Useful in (e.g.) TIBDatabase.OnAfterConnect handler to suppress actions
436 >    when the database is disconnected/connected during the create DB procedure.
437 >
438 > 15. TIBXScript: any User/password parameters found in a CREATE DATABASE statement
439 >    are now always ignored and replaced by the user name and password provided as
440 >    the login parameters for the TIBDatabase referenced from the TIBXScript. The
441 >    IgnoreCreateDatabase property still applies and the CREATE DATABASE statement is
442 >    completely ignored if this property is true.
443 >
444 > 16. Code tidyup in IBTreeView: Node properties initialisation moved from TIBTreeView.AddNodes
445 >    to TIBTreeView.Added. An OnAddition event handler is no longer needed to initialise
446 >    ImageIndex and SelectImageIndex values on AddNode.
447 >
448 > 17. TIBDatabase.Attachment and TIBXServicesConnection.ServicesIntf properties are now
449 >    read/write. This should enabled (e.g.) multiple instances of TIBDatabase to share
450 >    the same database connection.
451 >
452 > 18. TIBDataSet and TIBQuery now support the TDataSet "Filter" property.
453 >    if provided, this should be an conditional SQL expression suitable for
454 >    including in an SQL Select statement "where" clause. If non-empty and the
455 >    "Filtered" property is true then the SQL expression provided as the value of
456 >    the "Filter" property is "ANDed" with any existing condition statement
457 >    in the SQL statement's "Where" clause.
458 >
459 >    If the "Filter" property is set at run time, the "Filtered" property is true
460 >    and the dataset is already open, then the dataset is closed and re-opened automatically.
461 >
462 >    The "Filter" condition may include IBX style parameters. In which case, their
463 >    value must be set by the dataset's "OnBeforeOpen" event handler.
464 >
465 >    This is a public property for TIBDataSet and TIBQuery query and intended for
466 >    use at run time.
467 >
468 >    Note: The property is a published property of TIBTable. The TIBTable functionality
469 >    is unaffected by this change.
470 >
471 > IBX Change Log  version (2.3-2) Wed, 05 Dec 2018 12:19:23 +0000
472 >
473 > 1. Remove need to check for IsMultiThread by providing access to GUI timers via
474 >   IBGUIInterface. Note: master/detail delay timer does not apply to console
475 >   mode apps.
476 >
477 > 2. TIBCustomDataSet: SQLParser ignored if it does not contain a valid select
478 >   statement. This avoids problems if "Execute Block" is used as the Query.
479 >
480 > 3. IBSQLParser now uses the common SQL tokeniser from fbintf. This replaces the
481 >   internal SQL tokeniser routines.
482 >
483 > 4. IBSQLParser: new property NotaSelectStmt. Set to true if SQL fails to parse
484 >   as a select statement, with or without CTEs.
485 >
486 > 5. IBSQLParser: parser now recognises the "ROWS" clause.
487 >
488 > 6. TIBXScript now uses the common SQL tokeniser from fbintf. This replaces the
489 >   internal SQL tokeniser routines.
490 >
491 > 7.  Fix error in TIBXScript processing of "set" statements. This avoids exceptions
492 >    being raised for valid set statements processed by a data formatter.
493 >
494 > 8. New published property for TIBDatabase and TIBXServicesConnection. This is
495 >   FirebirdLibraryPathName: string. If not empty it is used to explicitly specify
496 >   the path of the Firebird Library used by the database/services connection.
497 >
498 > 9. New read only public property for TIBDatabase and TIBXServicesConnection. This
499 >   is FirebirdAPI and returns the IFirebirdAPI interface used by the database/
500 >   services connection.
501 >
502 > 10.SQL Property editors now quote parameter names if "Quote identifier" is selected
503 >   or param name is not a valid SQL identifier.
504 >
505 > 11. IBLookupComboEditBox: In Lazarus 2.0, TDBLookupComboBox takes a more restrictive
506 >    view of whether the text box should be editable when no DataSource is specified.
507 >    TIBLookupComboEditBox has been updated to workaround this problem. As long as
508 >    ReadOnly is false, the text box is editable when no DataSource is specified.
509 >
510 > 12. AllowUseOfFBLIB is now set to "true" at design time. This is to allow use of
511 >    the FBLIB environment variable. If you do not want to permit this then you
512 >    must modify the Register procedure in the design/IBDBReg.pas unit to remove
513 >    this setting.
514 >
515 > IBX Change Log  version                 (2.3-1) Thu, 25 Oct 2018 14:39:45 +0100
516 >
517 > 1. IBCustomDataset: replace deprecated function ValidUTF8String with call to
518 >   Utf8EscapeControlChars
519 >
520 > IBX Change Log  version                (2.3-0) Mon, 16 Apr 2018 09:48:06 +0100
521 >
522 > IMPORTANT: the source code tree has been re-organised for IBX 2.3. Please remove
523 > all previous copies of the IBX source code tree before installing this release.
524 >
525 > The IBX packages used by most users have not changed, with one exception. The
526 > IBServices unit has been moved to the package iblegacyServices.lpk. To continue
527 > to use the IBServices unit in your applications, please add the iblegacyServices
528 > to the list of dependencies. To do this, open the Project Inspector and select
529 > Add->New Requirement and select "ibLegacyServices" from the list of available
530 > packages.
531 >
532 > 1. New unit IBXServices. The IBXServices unit is a re-architectured update of
533 >   the IBServices unit providing what is intended to be a clearer and easier to
534 >   use set of IB Services components. See Chapter 10 of the IBX User Guide for
535 >   more information and the guide to "Firebird Service Management Using IBX".
536 >   As indicated above, the legacy services components are still available and
537 >   provided in a separate package. There is no need to update working applications
538 >   using the older versions except for an additional package dependency.
539 >
540 > 2. The IBX packages and source code tree have been re-organised in an attempt to
541 >   finally get rid of the "duplicate ppu" warnings. This re-organisation should
542 >   not affect existing users. Section 2.3 of the IBX User Guide describes the
543 >   new set of IBX packages.
544 >
545 > 3. The ibx/examples/DBAdmin and the ibx/examples/services example have been
546 >   updated to use the new Services API components.
547 >
548 > 4. The iblocal package has been updated to use the new Services API components.
549 >
550 > 5. procedure SetAutoAdmin; in the new IBX Services this method is now a member of
551 >   TIBXSecurityService. It had been wrongly classified in the previous version
552 >   as a per database configuration item. It is global to a server and hence
553 >   correctly positioned as part of the Security Package. In the DBAdmin example,
554 >   the setting has moved to the mappings page.
555 >
556 > 6. TIBXScript: IgnoreCreateDatabase added. If true then CREATE DATABASE statements
557 >   are ignored.
558 >
559 > 7. TIBDatabase: DropDatabase now ensures that all transactions have been properly
560 >   closed before the database is dropped. Before and After Disconnect event handlers
561 >   are also fired.
562 >
563 > 8. TIBTransaction: OnStartTransaction event now fires every time the transaction
564 >   is started and not just the first time.
565 >
566 > 9. IBDataOutput: Use FormatFloat for all performance statistics to avoid platform
567 >   depenendency with comp type.
568 >
569 > 10. IBDataOutput: select query data output is now sent to stdout instead of stderr.
570 >
571 > 11. TIBDatabase: Remove regression. If a user login dialog changes the DatabaseName
572 >    then this is recognised and not ignored.
573 >
574 > 12. TIBDataSet, TIBQuery, TIBTable: additions:
575 >    function GetRowsAffected(var SelectCount, InsertCount, UpdateCount, DeleteCount: integer): boolean;
576 >    function GetPerfStatistics(var stats: TPerfCounters): boolean;
577 >    property EnableStatistics: boolean read FEnableStatistics write SetEnableStatistics;
578 >
579 >    GetRowsAffected returns the affected row counts from the last insert/update/delete
580 >    if EnableStatistics = true then GetPerfStatistics returns the current stats
581 >    counters for the select query. Note: stats accumulate after each fetch from
582 >    the database. To get total query cost after open, call the "Last" method
583 >    and then GetPerfStatistics.
584 >
585 >    See ibx/examples/consolemode for an example of the use of GetPerfStatistics
586 >
587 > 13. TIBExtract: Identity columns DDL. "Start with clause" now correctly encapsulated
588 >    in parenthesises.
589 >
590 > 14. TIBExtract: new published property "AlwaysQuoteIdentifiers". If true then in dialect 3
591 >    SQL identifiers are always delimited by double quotes. If false, then they are
592 >    only delimited if the identifier is a reserved word, contains lower case or special
593 >    characters. Set this property to true to retain previous behaviour.
594 >
595 > 15. Insert SQL Property Editor. In Insert Returning Clause, Identity column names
596 >    are now inserted in double quotes if not Reserved Words or valid SQL Identifiers.
597 >
598 > 16. TIBDataSet, TIBQuery, TIBTable: addition:
599 >       property MasterDetailDelay: integer {defaults to zero}
600 >
601 >    When non-zero and the dataset is a detail table referencing a master table
602 >    through either a MasterSource (TIBTable) or a DataSource (TIBDataSet, TIBQuery)
603 >    then a synchronisation delay is added (in milliseconds) between the master
604 >    row changing and the detail dataset being re-opened. If the master dataset
605 >    is scrolled before the delay expires then the delay is reset. This can be used
606 >    to avoid performance overheads when scrolling through a large master dataset.
607 >
608 >    Note: uses fptimer and hence requires a thread manager. Under Linux the
609 >    chreads unit must be included in your project. TTimer is not used in order
610 >    to avoid an LCL dependency. Requires FPC 3.0.2 or later.
611 >
612 > 17. TIBExtract: User role grants now excluded when etGrantsToUser not specified
613 >    with Extract Option eoDatabase.
614 >
615 > 18. TIBLookupComboEditBox: Workaround added for https://bugs.freepascal.org/view.php?id=33428
616 >    When a deLayoutChanged event is reported on the ListSource dataset, the
617 >    combobox text is updated. This allows a listsource (detail) to be in a Master/Detail
618 >    relationship with the control's datasource (master).
619 >
620 > 19. TIBExtract: Full BigInt value range now supported for Generators/Sequences.
621 >
622 > 20. TIBExtract: Select Procedures (Procedure type 1) now include "SUSPEND;" clause in their
623 >    stubs. Pedantic fix really, as procedures output in dependency order anyway.
624 >
625 > 21. TIBExtract: Package Headers and Package Bodies are now included in the extracted
626 >    DDL (Firebird 3 and later only).
627 >
628 > 22. TIBLookupComboBox Autocomplete Fixes:
629 >    i. Only appended text is now selected after autocomplete.
630 >    ii. Uppercase keys no longer ignored for autocomplete.
631 >    iii. Retain Prefix case is now honoured correctly.
632 >    iv. When a DataSource is assigned, typing after autocomplete now extends prefix
633 >        before autocomplete performed. i.e. behaviour now the same as when
634 >        no DataSource assigned.
635 >
636 > 23. TIBXScript: Single Line Comments starting with '--' are now ignored when occurring
637 >    between SQL statements.
638 >
639 > 24. TIBExtract: New published property CaseSensitiveObjectNames. If false (default) then
640 >    ObjectNames are converted to upper case before matching against metadata object
641 >    names, unless the objectname is delimited by double quotes, in which case, the
642 >    double quotes are removed and the remaining string is used (unmodified) to match
643 >    against the metadata object name.
644 >
645 >    If true then the ObjectName is used as is without modification and matched
646 >    against the metadata object name. No attempt is made to remove double quotes.
647 >
648 > 25. TIBExtract: New Extract Types: etDatabaseTriggers and etDDLTriggers. When used
649 >    with eoTrigger, these extract types can be used to select only Database Triggers,
650 >    or DDL Triggers or both. Ignored when etTable or etTrigger included in Extract Types.
651 >
652 > 26. TIBXScript: If an exception occurs during the processing of a statement, the
653 >    statement separate character is now reset to the default (';').
654 >
655 > 27. TIBDatabase: Reconnect method added and used by TIBXScript for reconnect.
656 >
657 > 28. TIBXScript: Transaction is no longer automatically reactivated immediately processing
658 >    a commit or reconnect statement and instead activated only when next SQL statement
659 >    is executed.
660 >
661 > 29. TIBSQL.HasField should no longer generate and exception when the field does not exist.
662 >
663 > 30. TIBXScript: case insensitive regex now used when matching statements instead of
664 >    converting statement to upper case.
665 >
666 > 31. TIBExtract: metadata comments now supported. New published property
667 >    IncludeMetaDataComments (default true). If true then metadata comments included
668 >    in extracted DDL. New Extract Object member eoComments. This may be used with
669 >    ExtractObject method to list all metadata comments.
670 >
671 > 32. TIBExtract: ListObjectNames method added.
672 >
673 > 33. Updated Database component editor to support additional connection string
674 >    types.
675 >
676 > IBX Change Log  version  (2.2-0) Wed, 28 Feb 2018 10:57:45 +0000
677 >
678 > NOTE: THE LOCATIONS OF SOME OF THE UNIT DIRECTORIES HAS CHANGED FROM IBX 2.1. THIS IS TO
679 > AVOID DUPLICATE PPU WARNINGS. PLEASE REMOVE EARLIER VERSIONS OF IBX BEFORE INSTALLING THIS
680 > RELEASE.
681 >
682 > NOTE: THE DBADMIN DEMO REQUIRES THAT THE MemDSLaz PACKAGE IS INSTALLED IN THE LAZARUS IDE.
683 >
684 > 1. IBExtract: Identity columns - add additional check for null column for generator name.
685 >
686 > 2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
687 >   The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
688 >   information). However, this is also a very useful mechanism for returning updated computed by
689 >   column values. Values returned as a result of executing an Insert or Update statement
690 >   replace existing values in the current row for each corresponding column.
691 >
692 >   Previously, if a dataset's select query included read only (computed by) fields then
693 >   an automatic row refresh was performed after an insert or update query had been processed,
694 >   irrespective of the setting of the "ForcedUpdates" property. This has changed such
695 >   that an automatic refresh is no longer performed if an insert or update query contains
696 >   a returning clause that updates one or more fields on the current row. A full row
697 >   refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
698 >   field values and the select query contains read only fields. Use of Insert/update
699 >   returning should be significantly more efficient than executing a refresh query.
700 >
701 >   This behaviour change is intended to be backwards compatible and there should be no need to change
702 >   existing programs, other than to improve performance by using the new capability.
703 >
704 > 3. IBCustomDataSet: DELETE...RETURNING queries are now also recognised. However, as
705 >   they are called when the dataset row is being deleted, there is no value in
706 >   updating the current record from the query result. Instead, a new event handler
707 >   "OnDeleteReturning" is provided. If a DELETE...RETURNING query is execute and
708 >   an OnDeleteReturning event handler is provided then it is called with the IResults returned
709 >   by the query. The event handler can then interrogate the query results and
710 >   perform whatever action is necessary. For example to confirm, to the user,
711 >   the deletion of a row with the returned values.
712 >
713 > 4. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
714 >   any Computed By or Identity Columns. The IBTables example has been updated to
715 >   illustrate the computation of the employee Full Name on update.
716 >
717 > 5. TIBTable: The GeneratorField property is now published.
718 >
719 > 6. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
720 >   When InsertSQL is generated, the Identity columns are not included in the list of values to
721 >   be inserted. A RETURNING clause is added to the insert statement to return the value of
722 >   each Identity column after the insert is executed.
723 >
724 > 7. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
725 >   Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
726 >   Insert..Returning clause.
727 >
728 > 8. TIBGenerator: small performance improvement by not preparing query each time
729 >   a new value is generated.
730 >
731 > 9. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
732 >
733 > 10. Property editors will now sync table name to a System Table when "Include System
734 >    Tables" is selected and the query is for a System Table.
735 >
736 > 11. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
737 >    values are no longer converted to milliseconds from TDateTime and then back again
738 >    to TDateTime (the conversion to milliseconds is the default TDataset approach).
739 >
740 > 12. Property Editors handling of Stored Procedures.
741 >    * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
742 >      which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
743 >      query).
744 >    * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
745 >
746 > 13. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
747 >    can be used to select a package. If non-empty, the stored procedure name is
748 >    expected to be a stored procedure defined in the specified package and the
749 >    generated SQL will be as required for a stored procedure located in a package.
750 >
751 > 14. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
752 >    a "Package Name" drop down box to allow selection of a Firebird 3 Package from
753 >    which a stored procedure can be selected. With no package name selected, non-package
754 >    stored procedures are listed.
755 >
756 > 15. TIBXScript: turn off database login prompt when reconnecting - this avoids prompting
757 >    for password on reconnect.
758 >
759 > 16. TIBDatabase: use IAttachment for connection default character set id, code page
760 >    and character set name.
761 >
762 > 17. TIBDatabaseInfo: cache ODS Version information on first request in order to minimise
763 >    DB info lookups"
764 >
765 > 18. IBExtract: now supports DDL Triggers and Grants to DDL objects.
766 >
767 > 19. Add a property Editor for TIBUpdate.RefreshSQL.
768 >
769 > 20. IBUpdate: Ignore non-data (e.g. calculated) fields when assembling list of input
770 >    parameters. This stops an exception being raised when the field cannot be
771 >    located in the record buffer.
772 >
773 > 21. Property Editors now automatically include System Tables when opened and when the query table
774 >    is a System Table.
775 >
776 > 22. IBServices: SQRB and SRB buffers are now reset when service query throws an exception.
777 >    This avoids errors due to a stale SQRB or SRB being used for the next query.
778 >
779 > 23. IBServices: Service attach parameters now include "expected_db". This is used to
780 >    add the SPB item isc_spb_expected_db. This names a database using
781 >    an alternative Security Database (FB3 onwards) and allows (e.g. backup/restore) using such a
782 >    database. examples/services re-written to illustrate use of "expected_db".
783 >
784 > 24. IBServices: TIBControlAndQueryService.WriteNextChunk no longer ignores isc_info_svc_timeout.
785 >    This avoids truncated backups when the server returns a timeout (busy) response.
786 >
787 > 25. TIBDatabase: isc_dpb_page_size now supported as a database parameter when using TIBDatabase.CreateDatabase.
788 >
789 > 26. TIBDatabase: DatabaseName property may now be prefixed by $TEMP$ or $DATADIR$ for local
790 >    databasenames. These are respectively expanded to the local system's temp directory
791 >    (including trailing delimiter) or to a prescribed data directory (including
792 >    trailing delimiter). Under Unix systems the data directory is a hidden directory
793 >    in the user's home directory. The hidden directory name is either the string returned
794 >    from the SysUtils "Vendor Name" or "IBX" if empty. In either case prefixed by a '.'.
795 >    Under Windows, the directory is the same as the Data Directory as decribed
796 >    above but instead prefixed by the User's application data path. These may be
797 >    used to improve application portability for Personal Databases.
798 >
799 > 27. TIBTable: FieldDefs property is no longer published. Due to the use of TIBFieldDef
800 >    this has not worked for a long time and is not useful either. FieldDefs should be
801 >    managed using the Fields Editor as with any other dataset. To access the fields
802 >    editor for a TIBTable component, double click on the component. The fields editor
803 >    is then displayed.
804 >
805 > 28. TIBDatabaseInfo: new properties/function
806 >     * DateDBCreated (returns date/time database created)
807 >     * TransactionCount (returns no. of active transactions)
808 >     * GetDatabasePage(PageNo: integer) (returns contents of specified database page - SYSDBA only).
809 >     * PagesFree (Firebird 3 or later)
810 >     * PagesUsed (Firebird 3 or later)
811 >     * Encrypted (returns true if database encrypted. (Firebird 3.0.3 or later only)
812 >     * EncryptionKeyName (returns the name of the encryption key if any (Firebird 3.0.3 or later only)
813 >
814 > 29. IBServices classes now provided the decoded release number in the (array) property ServerVersionNo.
815 >
816 > 30. TIBSecurityService now supports display/modification of the User Admin Role (Firebird 2.5 and later).
817 >
818 > 31. TIBConfigService now has a procedure SetAutoAdmin(Value: boolean) to enable/disable
819 >    the automtic mapping of privileged OS users to the RDB$ADMIN role (Firebird 2.5 and later).
820 >
821 > 32. TIBBackupService: New Option - NoDBTriggers equivalent to -nodbtriggers switch introduced
822 >    in the gbak utility at V.2.1 to prevent database-level and transaction-level triggers from
823 >    firing during backup and restore.
824 >
825 > 33. Both TIBBackupService and TIBRestoreService now support backup/restore statistics options
826 >    for verbose output using the new property "StatisticsRequested".
827 >    see https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-util-gbak.html#rnfb25-util-gbakstats
828 >
829 > 34. TIBRestoreService: now supports new options RestoreMetaDataOnly (Firebird 2.5 and later).
830 >
831 > 35. TIBOnlineValidationService component added to the IBServices and the "Firebird Admin"
832 >    palette. This uses the online validation feature added in Firebird 2.5. The
833 >    services's properties enable inclusion/exclusion of tables and indexes using
834 >    regular expressions. See.
835 >    https://firebirdsql.org/file/documentation/release_notes/html/en/2_5/rnfb25-apiods-api.html#rnfb25-apiods-api-onlinevalidation
836 >
837 > 36. IBServices: procedure TIBConfigService.SetNoLinger added to set no linger
838 >    option on a database.
839 >
840 > 37. TIBCustomService: Assign method implemented to allow copying of service login
841 >    context between service API components. "Detach" method now only detaches
842 >    service when last reference to the service interface detaches. Tidy up of
843 >    code for SetActive and Attach methods including password hiding.
844 >
845 > 38. TIBDatabase: new properties: AuthenticationMethod and RemoteProtocol. Read only
846 >    and used to determine the auth method and protocol used for the connection.
847 >
848 > 39. TIBDatabase: ensure that SQLDialect setting is used when creating a database using
849 >    a Create Database Statement generated by IBX.
850 >
851 > 40. All IBServices now have an additional published property "PortNo". This may
852 >    be set to a non-standard port number when necessary. If zero then the default
853 >    port number is used.
854 >
855 > 41: TIBLookupComboeditBox: Ensure dataset updated when change selected with the keyboard
856 >    and not just the mouse.
857 >
858 > 42. TIBCustomDataset: reopen query if already active when a TIBControlLink is added.
859 >
860 > 43. TIBTreeview: new ImageIndexField and SelectedIndexField Property allows the
861 >    image index and selected image index for each node to be set from a database field.
862 >
863 > 44. TIBExtract: new extract type (etGrantsToUser) for use with eoDatabase. If included
864 >    then database schema includes grants to all users. If not present then the
865 >    only user grants included are those to User PUBLIC.
866 >
867 > 45. TIBTreeView: performance improvement. When expanding include both expanded node
868 >    and child nodes in dataset.
869 >
870 >
871 > IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
872 >
873 > 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
874 >   changes.
875 >
876 > 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
877 >   Bug could result in truncated multi-byte character set values.
878 >
879 > 3. Changes consequential on moving fbintf character set utility functions from
880 >   IFirebirdAPI to IAttachment.
881 >
882 > 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
883 >
884 > 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
885 >   results in autocomplete ignoring prefix text.
886 >
887 > 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
888 >   entering a new name into the text box.
889 >
890 > 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
891 >   Firebird rather than recomputing it.
892 >
893 > 8. Property Editor positioning tidy up: All IBX Property editors should now be
894 >   screen centre. Previously some were "poDesigned" which may be inappropriate
895 >   for multi monitor desktops.
896 >
897 > 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
898 >
899 > 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
900 >    a transaction and always reset the object.
901 >
902 > 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
903 >
904 > 13. TIBXScript: Allow for override of database filename in Create Database statements.
905 >
906 > 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
907 >    to a gbak format archive.
908 >
909 > 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
910 >
911 > 16. IBLocaldb: Drop database if error creating an empty database.
912 >
913 > 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
914 >    unless selected node not in current dataset.
915 >
916 > 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
917 >    to TIBCustomService, and IBlocalDB code tidy up.
918 >
919 > 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
920 >    behaviour due to uninitialised variable.
921 >
922 > 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
923 >    integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
924 >
925 > 21. IBSQL: When Database changed ensure that all resources are freed.
926 >
927 > 22. IBCustomDataset: When database changed ensure that queries an unprepared.
928 >
929 > 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
930 >    * Line Wrap on SQL Token boundaries (on user command)
931 >    * auto-complete table names in drop down list of table names
932 >    * Double click on tablename or field name adds to SQL text
933 >
934 > 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
935 >
936 > 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
937 >    TVariantArray. Seems to avoid memory corruption in Windows (probably a
938 >    workaround for a problem in fpc 3.0.4 win64).
939 >
940 > 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
941 >
942 > 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
943 >
944 > IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
945 >
946 > 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
947 >   include remote system name.
948 >
949 > 2. TIBExtract: No longer include comment header and COMMIT statement for empty
950 >   tables when data included in output.
951 >
952 > 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
953 >   and timing information to be written to stdout. This may be used to locate
954 >   performance bottlenecks.
955 >
956 > 4. SQLParser: only call "OnChanging" event handler when value is different.
957 >
958 > 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
959 >
960 > 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
961 >   that BindFields is called when the query is next activated. Avoids FieldName
962 >   not found error.
963 >
964 > 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
965 >   purpose and allows the programmer to define any action they want for Update, Insert
966 >   or Delete. This may be complex SQL (similar to a Trigger), application specific
967 >   filtering of updates, or use of statements such as Grant or Revoke instead of
968 >   normal DML. See User Manual for more information.
969 >
970 > IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
971 >
972 > 1. TIBEvents: Fix uninitialised variable that could result in lost events.
973 >
974 > 2. TIBExtract: Added support for FB3 "USAGE" privilege.
975 >
976 > 3. TIBExtract: data formatted as Charset set "octets" is now output using
977 >   hexadecimal notation.
978 >
979 > 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
980 >   using a simple XML format.
981 >
982 > 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
983 >   grants to these objects.
984 >
985 > 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
986 >   dependency problems restoring complex databases.
987 >
988 > 7. TIBXScript: This component has been restructured to allow for the processing of
989 >   embedded XML in INSERT statements and to support interactive sources in addition
990 >   to non-interactive data sources such as files.
991 >
992 > 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
993 >
994 > 9. TIBXScript: ISQL compatiable Set statements are now supported:
995 >   SET SQL DIALECT
996 >   SET TERM
997 >   SET AUTODDL
998 >   SET BAIL
999 >   SET ECHO
1000 >   SET COUNT
1001 >   SET STATS
1002 >   SET NAMES <character set>
1003 >
1004 > 10. IBVersion unit added to hold current IBX Version Number information.
1005 >
1006 > 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
1007 >    and domain definitions.
1008 >
1009 > 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
1010 >    fully supported.
1011 >
1012 > 13. TIBExtract: when a database dump includes data, the generator values are now also set.
1013 >
1014 > 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
1015 >
1016 > IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
1017 >
1018 > See also doc/IBX4LazarusGuide.pdf for important information on
1019 > upgrading to IBX2.
1020 >
1021 > 1. Size property of TIBStringField is now the width in characters of the field
1022 >   and not the byte length. This applies only to multi-byte character sets such
1023 >   as UTF8. The original approach aligned with TStringField. However, the TStringField
1024 >   code is not recognised as a bug and hence this change to align the behaviour.
1025 >   The TStringField change is expected in fpc 3.2.0.
1026 >
1027 > 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
1028 >   true (default) then Size property value saved in the lfm is ignored. Size is
1029 >   always set from the dynamic information read from the database. It is unclear
1030 >   why anyone would want to override this and set Size to false.
1031 >
1032 > 3. ibxscript: should now handle correctly a Case..End statement within a procedure
1033 >   block.
1034 >
1035 > 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
1036 >   exist when an attempt is made to connect to it (run time only) then an attempt
1037 >   is made to create the database.
1038 >
1039 > 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
1040 >   has been successfully created as a result of a call to CreateDatabase or when
1041 >   creating a database after it was found not to exist.
1042 >
1043 > 6.  DBControlGrid: a race condition could result in the wrong row image being
1044 >    written to the cache. This has been avoided by a trip round the message
1045 >    loop before rendering the row image.
1046 >
1047 > 7.  DBControlGrid: It is strongly recommended not to open the source DataSet for
1048 >    a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
1049 >    known to risk corrupt rendering of row images when the control is first
1050 >    displayed. If necessary use "Application.QueueAsyncCall" to delay opening
1051 >    of the dataset (see DBControlGrid examples) until the Form's Window has been created.
1052 >
1053 > 8.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
1054 >    a TDateEdit control located on an editor panel.
1055 >
1056 > 9.  TIBExtract: brought up-to-date plus many bug fixes.
1057 >
1058 > 10. DBControlGrid: Removed memory leak when updating rows.
1059 >
1060 > 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
1061 >
1062 > IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
1063 >
1064 > 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
1065 >   when target codepage is CP_NONE. This is a workaround for
1066 >   http://bugs.freepascal.org/view.php?id=30622.
1067 >
1068 > 2. DBLog option removed from TIBStatisticalService - not supported by server
1069 >   since Firebird 1.5.
1070 >
1071 > 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
1072 >   similar.
1073 >
1074 > 4. IBCodePage: updated mapping between codepages and character id.
1075 >
1076 > 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
1077 >   Firebird. Character sets with a char width of two are not UTF16.
1078 >
1079 > 6. Strings received from the database are now always transliterated into UTF8
1080 >   regardless of the database character set or connection character set. This
1081 >   is for compatibility with the LCL.
1082 >
1083 > IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
1084 >
1085 > 1. IBBlob: Defer reading of blob until read method called. This avoids having to
1086 >   read in an entire blob just to get the size of the blob. General performance
1087 >   improvement when opening datasets containing blobs.
1088 >
1089 > 2. Clearing a  Blob now sets the corresponding field's modified flag.
1090 >
1091 > 3. IBLookupCombo: When not performing auto-complete, original query sort order
1092 >   is now used.
1093 >
1094 > 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
1095 >   determined.
1096 >
1097 > 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
1098 >
1099 > 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
1100 >   lazarus 1.6.0
1101 >
1102 > 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
1103 >   compilation error.
1104 >
1105 > IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
1106 >
1107 > 1. No character set specified for connection: when a text blob is retrieved, the
1108 >  character set is determined by looking up the native character set using then
1109 >  Firebird API. Otherwise a text mode blob is assumed to have the same character
1110 >  set as the connection.
1111 >
1112 > 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
1113 >   for Login Dialog returing a change to the database path.
1114 >
1115 > 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
1116 >   to be changed from that given in the TIBDatabase/TIBServer component and for the
1117 >   entered value to be saved on a project specific basis (design time only).
1118 >
1119 > 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
1120 >   column fieldname. If they are the same then it is acts as a look up for the KeyValue
1121 >   Otherwise, it sets the column text to the selected ListField Value.
1122 >
1123 > 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
1124 >   column width.
1125 >
1126 > 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
1127 >   and a case insensitive search is requested.
1128 >
1129 > 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
1130 >   or column ListSource.
1131 >
1132 > 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
1133 >   unprepare) when closing and the text has not changed.
1134 >
1135 > 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
1136 >   Less likely to cause a cursor re-use error on Windows.
1137 >
1138 > 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
1139 >   Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
1140 >
1141 > 11. TIBTreeView: Guard against nil destination on record changed
1142 >
1143 > 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
1144 >    string type with the code page set to reflect the returned field encoding after
1145 >    Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
1146 >    earlier versions.
1147 >
1148 > 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
1149 >    will now result in transliteration to the code page specified for the Firebird driver
1150 >    if the assigned string has a different code page. FPC 3.0.0 onwards only.
1151 >
1152 > 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
1153 >    is ignored and the lc_ctype value, when the database is opened, is set to align with
1154 >    the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
1155 >    platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
1156 >    3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
1157 >    the GETACP is used to determine the Windows code page.
1158 >
1159 > 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
1160 >    name used as the lc_ctype when the database was opened. Only valid while the
1161 >    Database is connected.
1162 >
1163 > 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
1164 >    id that corresponds to the DefaultCharSetName.
1165 >
1166 > IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
1167 >
1168 > 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
1169 >   path is given and database attach fails due to access permission issues on the
1170 >   temp directory or security database, then the attach is retried with "localhost:"
1171 >   prefixing the databasename. This should avoid problems when the database has to
1172 >   be accessed by a local (e.g. classic) server and libfbembed is used.
1173 >
1174 > 2. Windows: revised search order for Firebird DLL:
1175 >     i.   The Firebird Embedded Server in the application Directory.
1176 >     ii.  If the FIREBIRD environment variable is set then the directory this
1177 >          points to is searched for the FB Client DLL and then then underlying
1178 >          "bin" directory.
1179 >     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
1180 >          is used to locate the Firebird installation directory and the underlying
1181 >          "bin" directory is searched for the FB Client DLL.
1182 >     iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
1183 >          are searched for the FB Client DLL.
1184 >     v.   The PATH Environment variable is used to search for the FB Client DLL.
1185 >     vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
1186 >
1187 > 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
1188 >   See doc/readme.scriptengine and example applications.
1189 >
1190 > 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
1191 >   simplify the use of the embedded firebird server on both Linux and Windows platforms.
1192 >   See dpc/readme.localdatabase and example applications.
1193 >
1194 > 5. IBDynamicGrid: Reordering on column header click should now also work for
1195 >   dynamic columns.
1196 >
1197 > 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
1198 >   between incrementing/decrementing the lock count and signalling the event.
1199 >
1200 > IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
1201 >
1202 > 1.3.2 was never formally released and only made available as beta copies.
1203 >
1204 > 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
1205 >
1206 > 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
1207 >
1208 > 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
1209 >
1210 > 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
1211 >   i.e. when it is a calculated field
1212 >
1213 > 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
1214 >   This problem was due to a race condition between recalculating row heights and
1215 >   determining which row was selected by the mouse click. The row height calculation
1216 >   is now deferred by an extra trip round the message loop allowing the row to
1217 >   be always calculated on the current grid layout rather than risking it being
1218 >   calculated on the grid layout after the expanded row has been shrunk.
1219 >
1220 > 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
1221 >   Windows.
1222 >
1223 > 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
1224 >   These properties allow the (Firebird) character set name for the field and the max number of bytes per character
1225 >   to be determined at runtime. See doc/readme.charactersets.html.
1226 >
1227 > 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
1228 >   TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
1229 >
1230 > 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
1231 >   TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
1232 >   1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
1233 >
1234 >   Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
1235 >   from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
1236 >   implies no truncation.
1237 >
1238 > 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
1239 >
1240 > 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
1241 >   (avoids "Not in Edit Mode" error).
1242 >
1243 > 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
1244 >
1245 > 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
1246 >    DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
1247 >
1248 > 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
1249 >
1250 > 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
1251 >
1252 > 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
1253 >
1254 > 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
1255 >
1256 > IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
1257 >
1258 > 1.   OnCloseUp Event Handler added to TDBLookupProperties
1259 >
1260 > 2.   IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
1261 >     problem with row size when exception is called.
1262 >
1263 > 3.   IBLookupComboEditBox: Force pending autocomplete on combobox exit.
1264 >
1265 > 4.   IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
1266 >     in a TCustomComboBox and ignores return key if in a TCustomMemo
1267 >
1268 > 5.   IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
1269 >     keyed in i.e. when autocomplete not performed
1270 >
1271 > 6.   Cleanup of "Uses" clauses and add console mode support. IBX should now support
1272 >     console mode applications with all LCL required functions (builtin dialogs and
1273 >     cursor management) centralised in the  IBDialogs unit. As long as "IBDialogs" is
1274 >     not included in your project, IBX should compile and link with a console mode program.
1275 >     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
1276 >     console mode application or the IDE will automatically assume that your
1277 >     application is GUI based. Instead, you should include the ibexpressconsolemode package.
1278 >
1279 >     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
1280 >     to use the built in dialogs and cursor management. IBDialogs is
1281 >     included by default if "ibexpress" is in your project source's "uses" clause.
1282 >     This should be the case for all projects created through the IDE. This is why
1283 >     you do not want to add the ibexpress package to console mode applications. The
1284 >     ibexpressconsolemode package has been created to allow console mode programs
1285 >     to avoid adding LCL dependencies when using IBX, while still having the
1286 >     unit search paths set up correctly.
1287 >
1288 >     Existing users should check to ensure that the "ibexpress" unit is included in
1289 >     each project's source file (*.lpr).
1290 >
1291 >     You may find that in order for the IDE to recognise that ibexpressconsolemode
1292 >     exists, you have to first open the package in the IDE and then close it. This
1293 >     adds it to the most recently accessed packages list. To make it permanently
1294 >     available, add the package name to lazarus' staticpackages.inc file.
1295 >
1296 >         Thanks to Julio Jiménez for suggesting support of console mode.
1297 >
1298 > 7.   SQL Parser can now accept quoted strings that include new lines
1299 >
1300 > 8.   IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
1301 >     of text on start of edit. This is particularly useful when tabbing to a
1302 >     column and then inserting text.
1303 >
1304 > 9.   New Examples provided for IB Services and ISQLMonitor.
1305 >
1306 > 10. Fix error when writing to blob streams that recorded only the last buffer
1307 >    write in the blob stream. In most cases, this did not cause a problem as the
1308 >    IB Blob Stream is written in a single write. However, with the TDBImage, write
1309 >    of a graphic type prefix was lost which caused a problem when the image could
1310 >        not be automatically recognised.
1311 >
1312 > 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
1313 >    already open" errors due to random numbers used for the cursor name being identical.
1314 >
1315 > 12. IBTable: corrected error that could result in an "Index out of bounds" error
1316 >    when opening the table and the Primary Key is the last or only column in the
1317 >    table. Thanks to Rick Hoover for the fix.
1318 >
1319 > 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
1320 >    of "UTF-8", and update list of available database character sets. Existing
1321 >    users should check the current lc_ctype setting in their applications.
1322 >
1323 > IBX Change Log  version  (1.2-4) Sat, 09 May 2015 12:38:29 +0100
1324 >
1325 > 1.  Firebird Services: avoid List Index error when opening a service with an
1326 >    empty Params property.
1327 >
1328 > 2.  IBControls: Fix problem with new link mechanism introduced in 1.2.3.
1329 >    Link now set up in Loaded method - avoids occasional failure to apply
1330 >    SQL markup on initial open.
1331 >
1332 > 3.  "Employees" example performance improvements when scrolling.
1333 >
1334 > 4.  DBControlGrid: Correctly handle edit panel removal when panel is child control of a
1335 >    TFrame. Force recaching of selected frame to avoid GTK race (results in a
1336 >    random image cached).
1337 >
1338 > 5.  DBControlGrid: Should now react to changes in panel height at run time.
1339 >
1340 > 6.  IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid  
1341 >    even when further rows exist.
1342 >
1343 > 7.  DBControlGrid: DefaultRowHeight is no longer a published property as it should
1344 >    always be derived from panel height and setting this property can cause confusion.
1345 >    Note for existing projects: to avoid a missing property error at run time,
1346 >    each form using the DBControlGrid must be opened, updated and saved in the IDE
1347 >    in order to remove the property value from the lfm.
1348 >
1349 >
1350 > IBX Change Log  version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
1351 >
1352 > 1.  TIBStoredProc. Prepare now called by ParamByName to avoid need to always
1353 >    call Prepare before setting parameter values.
1354 >
1355 > 2.  Error message on ParamByName (all cases) not found now includes name of missing parameter.
1356 >
1357 > 3.  Code tidyup and more robust handling of dsql information result vector.
1358 >
1359 > 4.  Support for centralised handling of transaction status changes. TIBTransaction
1360 >    has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
1361 >    and "AfterExecQuery". The first three are called after the same event is called
1362 >    for an IBCustomDataSet descendent using the Transaction. The fourth is called
1363 >    after a call to TIBSQL.ExecQuery, again using this transaction. These new events
1364 >    enable monitoring of transaction status changes for a given transaction to be
1365 >    handled in a single place. For example, when a change to the dataset occurs
1366 >    an indicator can be set that shows the user that in order to save changes,
1367 >    the transaction should be committed.  Rather than doing this per dataset, this
1368 >    can now be done per transaction.
1369 >
1370 > 5.  TDataSet.CheckBrowseMode automatically posts changes to the current row when
1371 >    the dataset is scrolled. However, any changes to the current row are, by default,
1372 >    discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
1373 >    have a new property "DataSetCloseAction" that adds automatic posting of changes
1374 >    on dataset close. If this property is set to dcDiscardChanges (default) then the
1375 >    behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
1376 >    then IBX will attempt to post any unsaved changes before the dataset is closed
1377 >    (and after the BeforeClose event handler is called). The exception is when the
1378 >    dataset is being closed as a result of a transaction rollback. In this case,
1379 >    no action is taken and any unsaved  changes are discarded. This avoids both
1380 >    unnecessary overhead and the risk that a validation error may occur in the Post
1381 >    raising an exception and thereby preventing a rollback.
1382 >
1383 > 6.  String Field sizes and Display Widths should now be correct for multi-byte character sets.
1384 >    In earlier versions, the Display Width was set to the maximum byte width rather than the character
1385 >    width. Display Widths are now corrected by dividing by the max byte width per character.
1386 >    For UTF8 character sets, the byte width is four and hence the Display Width will be
1387 >    the byte width divided by 4. The byte width of each character set is determined
1388 >    dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
1389 >    system table. (see also http://bugs.freepascal.org/view.php?id=27766).
1390 >
1391 > 7.  SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
1392 >
1393 > 8.  IBLookupComboEditBox: List should now always be restored to full list when the
1394 >    control loses focus. Default Key press default interval reduced to 200ms.
1395 >
1396 > 9.  DBControlGrid: Ensure that selection is changed to newly appended row, even
1397 >    when dataset rows are less than visible rows.
1398 >
1399 > 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
1400 >    does not exist or DataSet is empty. More responsive on dataset open. New event
1401 >    OnRestorePosition. Column sort disabled if no header row.
1402 >
1403 > 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
1404 >    while dataset state is dsInsert. Avoids posting errors.
1405 >
1406 > 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
1407 >    avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
1408 >
1409 > 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
1410 >
1411 > 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
1412 >    to solve a specific problem. That is when the dataset cursor is moved (e.g. by
1413 >    a grid mouse click and the current row is being edited or inserted. In this case, TDataset
1414 >    always "posts" the current record regardless or whether or not it may be more appropriate
1415 >    to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
1416 >    "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
1417 >    as the first action of the "Post" method and allows the handler to convert the Post
1418 >    into a Cancel if that is the appropriate action on moving to a different row. This is
1419 >    achieved by returning with "CancelPost" argument set to true. Note that an exception could be
1420 >    raised here, but it may still be more appropriate to validate a post and signal
1421 >    a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
1422 >
1423 > 15. On Unix derived systems, the Firebird library name can now be given as a colon
1424 >    separated list. Each library name on the list is tried in turn, in left to right
1425 >    order with the first found being used as the firebird library. By default, on Linux,
1426 >    the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
1427 >    overidden by the FBLIB environment variable or the OnGetLibraryName function.
1428 >
1429 >    Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
1430 >    then it will still attempt to access the database via the Firebird Server and will
1431 >    require a username and password. If only the pathname is given, then the username
1432 >    and password should be omitted and the unix file permissions are used to grant
1433 >    access.
1434 >
1435 > IBX Change Log  version  (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
1436  
1437   1.  A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
1438      rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
1439      that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
1440 <    correspondes to a row of the linked DataSource. Any data aware control on the
1440 >    corresponds to a row of the linked DataSource. Any data aware control on the
1441      replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
1442  
1443   2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
# Line 18 | Line 1452 | IBX Change Log  version
1452     committed.
1453  
1454   4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
1455 <   using the legacy Firebird API. Thanks to Gabor Boros for helping to this feature.
1455 >   using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
1456  
1457 < IBX Change Log  version                                                   (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
1457 > IBX Change Log  version      (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
1458  
1459   Development version only.
1460  
1461 < IBX Change Log  version                                      (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
1461 > IBX Change Log  version   (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
1462  
1463   1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
1464     This is typically used during an "OnBeforeOpen" event handler to manipulate the
# Line 84 | Line 1518 | IBX Change Log  version
1518   8. Three new examples illustrate the use of the new IB Controls
1519  
1520  
1521 < IBX Change Log  version                      (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
1521 > IBX Change Log  version  (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
1522  
1523   1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
1524     setting performance. See "readme.field+param.names in the doc folder.(Thanks to

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