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1 < IBX Change Log  version                      (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
1 > IBX Change Log  version                                    (2.2-0) Mon, 15 Jan 2018 23:43:19 +0000
2 >
3 > 1. IBExtract: Identity columns - add additional check for null column for generator name.
4 >
5 > 2. IBCustomDataSet: Insert and Modify (Update) queries now recognise and process SQL RETURNING clauses.
6 >   The main use for this is for Firebird 3 Identity columns (see IBXDocumentation 6.6.8 for further
7 >   information). However, this is also a very useful mechanism for returning updated computed by
8 >   column values. Values returned as a result of executing an Insert or Update statement
9 >   replace existing values in the current row for each corresponding column.
10 >
11 >   Previously, if a dataset's select query included read only (computed by) fields then
12 >   an automatic row refresh was performed after an insert or update query had been processed,
13 >   irrespective of the setting of the "ForcedUpdates" property. This has changed such
14 >   that an automatic refresh is no longer performed if an insert or update query contains
15 >   a returning clause that updates one or more fields on the current row. A full row
16 >   refresh is only performed if (a) ForcedRefresh is true or (b) the query does not return any
17 >   field values and the select query contains read only fields. Use of Insert/update
18 >   returning should be significantly more efficient than excuting a refresh query.
19 >
20 >   This behaviour change is intended to be backwards compatible and there should be no need to change
21 >   existing programs, other than to improve performance by using the new capability.
22 >
23 > 3. TIBTable: generated Insert and Update SQL now include a RETURNING clause for
24 >   any Computed By or Identity Columns. The IBTables example has been updated to
25 >   illustrate the computation of the employee Full Name on update.
26 >
27 > 4. TIBTable: The GeneratorField property is now published.
28 >
29 > 5. The InsertSQL property editor now shows Firebird 3 Identity columns separate from the Field List.
30 >   When InsertSQL is generated, the Identity columns are not included in the list of values to
31 >   be inserted. A RETURNING clause is added to the insert statement to return the value of
32 >   each Identity column after the insert is executed.
33 >
34 > 6. The Modify Property Editor now generates Update SQL with Computed By fields in Update..Returning clause.
35 >   Similarly Insert Property Editor now generates Insert SQL with Computed By fields in
36 >   Insert..Returning clause.
37 >
38 > 7. TIBGenerator: small performance improvement by not preparing query each time
39 >   a new value is generated.
40 >
41 > 8. TIBSQL: Free resources when transaction changed - ensures new transaction is used.
42 >
43 > 9. Property editors will now sync table name to a System Table when "Include System
44 >   Tables" is selected and the query is for a System Table.
45 >
46 > 10. Minor Performance improvement to handling of Date/Time types in IBX datasets. Field
47 >    values are no longer converted to milliseconds from TDateTime and then back again
48 >    to TDateTime (the conversion to milliseconds is the default TDataset approach).
49 >
50 > 11. Property Editors handling of Stored Procedures.
51 >    * Select and Refresh: only show a list of stored procedures that return multiple rows (proc type 1) and
52 >      which have a non-empty list of output parameters (i.e. stored procedures that may be used in a select
53 >      query).
54 >    * Modify and Insert: only show a list of stored procedures that return at most a singleton row (proc type 2).
55 >
56 > 12. IBStoredProc: Now supports Firebird 3 Package Names. A new published property PackageName
57 >    can be used to select a package. If non-empty, the stored procedure name is
58 >    expected to be a stored procedure defined in the specified package and the
59 >    generated SQL will be as required for a stored procedure located in a package.
60 >
61 > 13. Select, Refresh, Insert, Modify, Delete and TIBSQL SQL Property Editors now include
62 >    a "Package Name" drop down box to allow selection of a Firebird 3 Package from
63 >    which a stored procedure can be selected. With no package name selected, non-package
64 >    stored procedures are listed.
65 >
66 >
67 > IBX Change Log  version                            (2.1-0) Fri, 15 Dec 2017 12:20:11 +0000
68 >
69 > 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
70 >   changes.
71 >
72 > 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
73 >   Bug could result in truncated multi-byte character set values.
74 >
75 > 3. Changes consequential on moving fbintf character set utility functions from
76 >   IFirebirdAPI to IAttachment.
77 >
78 > 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
79 >
80 > 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
81 >   results in autocomplete ignoring prefix text.
82 >
83 > 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
84 >   entering a new name into the text box.
85 >
86 > 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
87 >   Firebird rather than recomputing it.
88 >
89 > 8. Property Editor positioning tidy up: All IBX Property editors should now be
90 >   screen centre. Previously some were "poDesigned" which may be inappropriate
91 >   for multi monitor desktops.
92 >
93 > 10. TIBTreeView.FindNode: protect against error if zero length path or empty tree node.
94 >
95 > 11. TIBTransaction: On Force Disconnect do not raise an exception when problem ending
96 >    a transaction and always reset the object.
97 >
98 > 12. TIBQuery tidyup: remove unnecessary call to GetAffectedRows.
99 >
100 > 13. TIBXScript: Allow for override of database filename in Create Database statements.
101 >
102 > 14. IBLocaldb: Support initialisation of the database from an SQL script in addition
103 >    to a gbak format archive.
104 >
105 > 15. IBLocaldb: fix problem that stopped the OnSharedDataDir event from being recognised.
106 >
107 > 16. IBLocaldb: Drop database if error creating an empty database.
108 >
109 > 17. TIBTreeView: improve performance when selecting node - avoid refreshing dataset
110 >    unless selected node not in current dataset.
111 >
112 > 18. IBServices: SetDBParams method moved from TCustomIBLocalDBSupport (in IBLocalDB package)
113 >    to TIBCustomService, and IBlocalDB code tidy up.
114 >
115 > 19. IBTreeView: Initialise TIBTreeNode KeyValue to null to avoid unpredictable
116 >    behaviour due to uninitialised variable.
117 >
118 > 20. IBServices: Correct encoding of isc_spb_prp_write_mode in TIBConfigService from
119 >    integer to byte. Ditto isc_spb_prp_reserve_space and isc_spb_prp_access_mode.
120 >
121 > 21. IBSQL: When Database changed ensure that all resources are freed.
122 >
123 > 22. IBCustomDataset: When database changed ensure that queries an unprepared.
124 >
125 > 23. SQL Property Editors now use SynEdit with SQL Highlighter. New features include:
126 >    * Line Wrap on SQL Token boundaries (on user command)
127 >    * auto-complete table names in drop down list of table names
128 >    * Double click on tablename or field name adds to SQL text
129 >
130 > 24. IBDataOutput: print statistics using float (%f) format instead of decimal (%d).
131 >
132 > 25. IBTreeView: Call to FindNode: param type change from "array of Variant" to
133 >    TVariantArray. Seems to avoid memory corruption in Windows (probably a
134 >    workaround for a problem in fpc 3.0.4 win64).
135 >
136 > 26. IBDatabaseInfo: Code tidy up. Add check for database not assigned or not open.
137 >
138 > 27. IBDatabaseInfo: Remove memory leak when accessing database operation counts.
139 >
140 > IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
141 >
142 > 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
143 >   include remote system name.
144 >
145 > 2. TIBExtract: No longer include comment header and COMMIT statement for empty
146 >   tables when data included in output.
147 >
148 > 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
149 >   and timing information to be written to stdout. This may be used to locate
150 >   performance bottlenecks.
151 >
152 > 4. SQLParser: only call "OnChanging" event handler when value is different.
153 >
154 > 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
155 >
156 > 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
157 >   that BindFields is called when the query is next activated. Avoids FieldName
158 >   not found error.
159 >
160 > 7. IBUpdate: This is a new IBX component similar to TIBUpdateSQL. It is more general
161 >   purpose and allows the programmer to define any action they want for Update, Insert
162 >   or Delete. This may be complex SQL (similar to a Trigger), application specific
163 >   filtering of updates, or use of statements such as Grant or Revoke instead of
164 >   normal DML. See User Manual for more information.
165 >
166 > IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
167 >
168 > 1. TIBEvents: Fix uninitialised variable that could result in lost events.
169 >
170 > 2. TIBExtract: Added support for FB3 "USAGE" privilege.
171 >
172 > 3. TIBExtract: data formatted as Charset set "octets" is now output using
173 >   hexadecimal notation.
174 >
175 > 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
176 >   using a simple XML format.
177 >
178 > 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
179 >   grants to these objects.
180 >
181 > 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
182 >   dependency problems restoring complex databases.
183 >
184 > 7. TIBXScript: This component has been restructured to allow for the processing of
185 >   embedded XML in INSERT statements and to support interactive sources in addition
186 >   to non-interactive data sources such as files.
187 >
188 > 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
189 >
190 > 9. TIBXScript: ISQL compatiable Set statements are now supported:
191 >   SET SQL DIALECT
192 >   SET TERM
193 >   SET AUTODDL
194 >   SET BAIL
195 >   SET ECHO
196 >   SET COUNT
197 >   SET STATS
198 >   SET NAMES <character set>
199 >
200 > 10. IBVersion unit added to hold current IBX Version Number information.
201 >
202 > 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
203 >    and domain definitions.
204 >
205 > 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
206 >    fully supported.
207 >
208 > 13. TIBExtract: when a database dump includes data, the generator values are now also set.
209 >
210 > 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
211 >
212 > IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
213 >
214 > See also doc/IBX4LazarusGuide.pdf for important information on
215 > upgrading to IBX2.
216 >
217 > 1. Size property of TIBStringField is now the width in characters of the field
218 >   and not the byte length. This applies only to multi-byte character sets such
219 >   as UTF8. The original approach aligned with TStringField. However, the TStringField
220 >   code is not recognised as a bug and hence this change to align the behaviour.
221 >   The TStringField change is expected in fpc 3.2.0.
222 >
223 > 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
224 >   true (default) then Size property value saved in the lfm is ignored. Size is
225 >   always set from the dynamic information read from the database. It is unclear
226 >   why anyone would want to override this and set Size to false.
227 >
228 > 3. ibxscript: should now handle correctly a Case..End statement within a procedure
229 >   block.
230 >
231 > 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
232 >   exist when an attempt is made to connect to it (run time only) then an attempt
233 >   is made to create the database.
234 >
235 > 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
236 >   has been successfully created as a result of a call to CreateDatabase or when
237 >   creating a database after it was found not to exist.
238 >
239 > 6.  DBControlGrid: a race condition could result in the wrong row image being
240 >    written to the cache. This has been avoided by a trip round the message
241 >    loop before rendering the row image.
242 >
243 > 7.  DBControlGrid: It is strongly recommended not to open the source DataSet for
244 >    a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
245 >    known to risk corrupt rendering of row images when the control is first
246 >    displayed. If necessary use "Application.QueueAsyncCall" to delay opening
247 >    of the dataset (see DBControlGrid examples) until the Form's Window has been created.
248 >
249 > 8.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
250 >    a TDateEdit control located on an editor panel.
251 >
252 > 9.  TIBExtract: brought up-to-date plus many bug fixes.
253 >
254 > 10. DBControlGrid: Removed memory leak when updating rows.
255 >
256 > 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
257 >
258 > IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
259 >
260 > 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
261 >   when target codepage is CP_NONE. This is a workaround for
262 >   http://bugs.freepascal.org/view.php?id=30622.
263 >
264 > 2. DBLog option removed from TIBStatisticalService - not supported by server
265 >   since Firebird 1.5.
266 >
267 > 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
268 >   similar.
269 >
270 > 4. IBCodePage: updated mapping between codepages and character id.
271 >
272 > 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
273 >   Firebird. Character sets with a char width of two are not UTF16.
274 >
275 > 6. Strings received from the database are now always transliterated into UTF8
276 >   regardless of the database character set or connection character set. This
277 >   is for compatibility with the LCL.
278 >
279 > IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
280 >
281 > 1. IBBlob: Defer reading of blob until read method called. This avoids having to
282 >   read in an entire blob just to get the size of the blob. General performance
283 >   improvement when opening datasets containing blobs.
284 >
285 > 2. Clearing a  Blob now sets the corresponding field's modified flag.
286 >
287 > 3. IBLookupCombo: When not performing auto-complete, original query sort order
288 >   is now used.
289 >
290 > 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
291 >   determined.
292 >
293 > 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
294 >
295 > 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
296 >   lazarus 1.6.0
297 >
298 > 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
299 >   compilation error.
300 >
301 > IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
302 >
303 > 1. No character set specified for connection: when a text blob is retrieved, the
304 >  character set is determined by looking up the native character set using then
305 >  Firebird API. Otherwise a text mode blob is assumed to have the same character
306 >  set as the connection.
307 >
308 > 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
309 >   for Login Dialog returing a change to the database path.
310 >
311 > 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
312 >   to be changed from that given in the TIBDatabase/TIBServer component and for the
313 >   entered value to be saved on a project specific basis (design time only).
314 >
315 > 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
316 >   column fieldname. If they are the same then it is acts as a look up for the KeyValue
317 >   Otherwise, it sets the column text to the selected ListField Value.
318 >
319 > 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
320 >   column width.
321 >
322 > 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
323 >   and a case insensitive search is requested.
324 >
325 > 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
326 >   or column ListSource.
327 >
328 > 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
329 >   unprepare) when closing and the text has not changed.
330 >
331 > 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
332 >   Less likely to cause a cursor re-use error on Windows.
333 >
334 > 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
335 >   Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
336 >
337 > 11. TIBTreeView: Guard against nil destination on record changed
338 >
339 > 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
340 >    string type with the code page set to reflect the returned field encoding after
341 >    Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
342 >    earlier versions.
343 >
344 > 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
345 >    will now result in transliteration to the code page specified for the Firebird driver
346 >    if the assigned string has a different code page. FPC 3.0.0 onwards only.
347 >
348 > 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
349 >    is ignored and the lc_ctype value, when the database is opened, is set to align with
350 >    the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
351 >    platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
352 >    3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
353 >    the GETACP is used to determine the Windows code page.
354 >
355 > 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
356 >    name used as the lc_ctype when the database was opened. Only valid while the
357 >    Database is connected.
358 >
359 > 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
360 >    id that corresponds to the DefaultCharSetName.
361 >
362 > IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
363 >
364 > 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
365 >   path is given and database attach fails due to access permission issues on the
366 >   temp directory or security database, then the attach is retried with "localhost:"
367 >   prefixing the databasename. This should avoid problems when the database has to
368 >   be accessed by a local (e.g. classic) server and libfbembed is used.
369 >
370 > 2. Windows: revised search order for Firebird DLL:
371 >     i.   The Firebird Embedded Server in the application Directory.
372 >     ii.  If the FIREBIRD environment variable is set then the directory this
373 >          points to is searched for the FB Client DLL and then then underlying
374 >          "bin" directory.
375 >     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
376 >          is used to locate the Firebird installation directory and the underlying
377 >          "bin" directory is searched for the FB Client DLL.
378 >     iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
379 >          are searched for the FB Client DLL.
380 >     v.   The PATH Environment variable is used to search for the FB Client DLL.
381 >     vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
382 >
383 > 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
384 >   See doc/readme.scriptengine and example applications.
385 >
386 > 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
387 >   simplify the use of the embedded firebird server on both Linux and Windows platforms.
388 >   See dpc/readme.localdatabase and example applications.
389 >
390 > 5. IBDynamicGrid: Reordering on column header click should now also work for
391 >   dynamic columns.
392 >
393 > 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
394 >   between incrementing/decrementing the lock count and signalling the event.
395 >
396 > IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
397 >
398 > 1.3.2 was never formally released and only made available as beta copies.
399 >
400 > 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
401 >
402 > 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
403 >
404 > 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
405 >
406 > 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
407 >   i.e. when it is a calculated field
408 >
409 > 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
410 >   This problem was due to a race condition between recalculating row heights and
411 >   determining which row was selected by the mouse click. The row height calculation
412 >   is now deferred by an extra trip round the message loop allowing the row to
413 >   be always calculated on the current grid layout rather than risking it being
414 >   calculated on the grid layout after the expanded row has been shrunk.
415 >
416 > 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
417 >   Windows.
418 >
419 > 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
420 >   These properties allow the (Firebird) character set name for the field and the max number of bytes per character
421 >   to be determined at runtime. See doc/readme.charactersets.html.
422 >
423 > 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
424 >   TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
425 >
426 > 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
427 >   TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
428 >   1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
429 >
430 >   Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
431 >   from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
432 >   implies no truncation.
433 >
434 > 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
435 >
436 > 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
437 >   (avoids "Not in Edit Mode" error).
438 >
439 > 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
440 >
441 > 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
442 >    DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
443 >
444 > 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
445 >
446 > 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
447 >
448 > 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
449 >
450 > 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
451 >
452 > IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
453 >
454 > 1.   OnCloseUp Event Handler added to TDBLookupProperties
455 >
456 > 2.   IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
457 >     problem with row size when exception is called.
458 >
459 > 3.   IBLookupComboEditBox: Force pending autocomplete on combobox exit.
460 >
461 > 4.   IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
462 >     in a TCustomComboBox and ignores return key if in a TCustomMemo
463 >
464 > 5.   IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
465 >     keyed in i.e. when autocomplete not performed
466 >
467 > 6.   Cleanup of "Uses" clauses and add console mode support. IBX should now support
468 >     console mode applications with all LCL required functions (builtin dialogs and
469 >     cursor management) centralised in the  IBDialogs unit. As long as "IBDialogs" is
470 >     not included in your project, IBX should compile and link with a console mode program.
471 >     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
472 >     console mode application or the IDE will automatically assume that your
473 >     application is GUI based. Instead, you should include the ibexpressconsolemode package.
474 >
475 >     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
476 >     to use the built in dialogs and cursor management. IBDialogs is
477 >     included by default if "ibexpress" is in your project source's "uses" clause.
478 >     This should be the case for all projects created through the IDE. This is why
479 >     you do not want to add the ibexpress package to console mode applications. The
480 >     ibexpressconsolemode package has been created to allow console mode programs
481 >     to avoid adding LCL dependencies when using IBX, while still having the
482 >     unit search paths set up correctly.
483 >
484 >     Existing users should check to ensure that the "ibexpress" unit is included in
485 >     each project's source file (*.lpr).
486 >
487 >     You may find that in order for the IDE to recognise that ibexpressconsolemode
488 >     exists, you have to first open the package in the IDE and then close it. This
489 >     adds it to the most recently accessed packages list. To make it permanently
490 >     available, add the package name to lazarus' staticpackages.inc file.
491 >
492 >         Thanks to Julio Jiménez for suggesting support of console mode.
493 >
494 > 7.   SQL Parser can now accept quoted strings that include new lines
495 >
496 > 8.   IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
497 >     of text on start of edit. This is particularly useful when tabbing to a
498 >     column and then inserting text.
499 >
500 > 9.   New Examples provided for IB Services and ISQLMonitor.
501 >
502 > 10. Fix error when writing to blob streams that recorded only the last buffer
503 >    write in the blob stream. In most cases, this did not cause a problem as the
504 >    IB Blob Stream is written in a single write. However, with the TDBImage, write
505 >    of a graphic type prefix was lost which caused a problem when the image could
506 >        not be automatically recognised.
507 >
508 > 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
509 >    already open" errors due to random numbers used for the cursor name being identical.
510 >
511 > 12. IBTable: corrected error that could result in an "Index out of bounds" error
512 >    when opening the table and the Primary Key is the last or only column in the
513 >    table. Thanks to Rick Hoover for the fix.
514 >
515 > 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
516 >    of "UTF-8", and update list of available database character sets. Existing
517 >    users should check the current lc_ctype setting in their applications.
518 >
519 > IBX Change Log  version  (1.2-4) Sat, 09 May 2015 12:38:29 +0100
520 >
521 > 1.  Firebird Services: avoid List Index error when opening a service with an
522 >    empty Params property.
523 >
524 > 2.  IBControls: Fix problem with new link mechanism introduced in 1.2.3.
525 >    Link now set up in Loaded method - avoids occasional failure to apply
526 >    SQL markup on initial open.
527 >
528 > 3.  "Employees" example performance improvements when scrolling.
529 >
530 > 4.  DBControlGrid: Correctly handle edit panel removal when panel is child control of a
531 >    TFrame. Force recaching of selected frame to avoid GTK race (results in a
532 >    random image cached).
533 >
534 > 5.  DBControlGrid: Should now react to changes in panel height at run time.
535 >
536 > 6.  IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid  
537 >    even when further rows exist.
538 >
539 > 7.  DBControlGrid: DefaultRowHeight is no longer a published property as it should
540 >    always be derived from panel height and setting this property can cause confusion.
541 >    Note for existing projects: to avoid a missing property error at run time,
542 >    each form using the DBControlGrid must be opened, updated and saved in the IDE
543 >    in order to remove the property value from the lfm.
544 >
545 >
546 > IBX Change Log  version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
547 >
548 > 1.  TIBStoredProc. Prepare now called by ParamByName to avoid need to always
549 >    call Prepare before setting parameter values.
550 >
551 > 2.  Error message on ParamByName (all cases) not found now includes name of missing parameter.
552 >
553 > 3.  Code tidyup and more robust handling of dsql information result vector.
554 >
555 > 4.  Support for centralised handling of transaction status changes. TIBTransaction
556 >    has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
557 >    and "AfterExecQuery". The first three are called after the same event is called
558 >    for an IBCustomDataSet descendent using the Transaction. The fourth is called
559 >    after a call to TIBSQL.ExecQuery, again using this transaction. These new events
560 >    enable monitoring of transaction status changes for a given transaction to be
561 >    handled in a single place. For example, when a change to the dataset occurs
562 >    an indicator can be set that shows the user that in order to save changes,
563 >    the transaction should be committed.  Rather than doing this per dataset, this
564 >    can now be done per transaction.
565 >
566 > 5.  TDataSet.CheckBrowseMode automatically posts changes to the current row when
567 >    the dataset is scrolled. However, any changes to the current row are, by default,
568 >    discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
569 >    have a new property "DataSetCloseAction" that adds automatic posting of changes
570 >    on dataset close. If this property is set to dcDiscardChanges (default) then the
571 >    behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
572 >    then IBX will attempt to post any unsaved changes before the dataset is closed
573 >    (and after the BeforeClose event handler is called). The exception is when the
574 >    dataset is being closed as a result of a transaction rollback. In this case,
575 >    no action is taken and any unsaved  changes are discarded. This avoids both
576 >    unnecessary overhead and the risk that a validation error may occur in the Post
577 >    raising an exception and thereby preventing a rollback.
578 >
579 > 6.  String Field sizes and Display Widths should now be correct for multi-byte character sets.
580 >    In earlier versions, the Display Width was set to the maximum byte width rather than the character
581 >    width. Display Widths are now corrected by dividing by the max byte width per character.
582 >    For UTF8 character sets, the byte width is four and hence the Display Width will be
583 >    the byte width divided by 4. The byte width of each character set is determined
584 >    dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
585 >    system table. (see also http://bugs.freepascal.org/view.php?id=27766).
586 >
587 > 7.  SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
588 >
589 > 8.  IBLookupComboEditBox: List should now always be restored to full list when the
590 >    control loses focus. Default Key press default interval reduced to 200ms.
591 >
592 > 9.  DBControlGrid: Ensure that selection is changed to newly appended row, even
593 >    when dataset rows are less than visible rows.
594 >
595 > 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
596 >    does not exist or DataSet is empty. More responsive on dataset open. New event
597 >    OnRestorePosition. Column sort disabled if no header row.
598 >
599 > 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
600 >    while dataset state is dsInsert. Avoids posting errors.
601 >
602 > 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
603 >    avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
604 >
605 > 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
606 >
607 > 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
608 >    to solve a specific problem. That is when the dataset cursor is moved (e.g. by
609 >    a grid mouse click and the current row is being edited or inserted. In this case, TDataset
610 >    always "posts" the current record regardless or whether or not it may be more appropriate
611 >    to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
612 >    "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
613 >    as the first action of the "Post" method and allows the handler to convert the Post
614 >    into a Cancel if that is the appropriate action on moving to a different row. This is
615 >    achieved by returning with "CancelPost" argument set to true. Note that an exception could be
616 >    raised here, but it may still be more appropriate to validate a post and signal
617 >    a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
618 >
619 > 15. On Unix derived systems, the Firebird library name can now be given as a colon
620 >    separated list. Each library name on the list is tried in turn, in left to right
621 >    order with the first found being used as the firebird library. By default, on Linux,
622 >    the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
623 >    overidden by the FBLIB environment variable or the OnGetLibraryName function.
624 >
625 >    Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
626 >    then it will still attempt to access the database via the Firebird Server and will
627 >    require a username and password. If only the pathname is given, then the username
628 >    and password should be omitted and the unix file permissions are used to grant
629 >    access.
630 >
631 > IBX Change Log  version  (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
632 >
633 > 1.  A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
634 >    rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
635 >    that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
636 >    corresponds to a row of the linked DataSource. Any data aware control on the
637 >    replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
638 >
639 > 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
640 >   When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
641 >   takes place during database access. This may be useful when there are performance issues with
642 >   the change of cursor. Setting the property to false suppresses the change of cursor.
643 >
644 > 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
645 >   and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
646 >   Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
647 >   making all changes permanent immediately rather than when the transaction is explicitly
648 >   committed.
649 >
650 > 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
651 >   using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
652 >
653 > IBX Change Log  version      (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
654 >
655 > Development version only.
656 >
657 > IBX Change Log  version   (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
658 >
659 > 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
660 >   This is typically used during an "OnBeforeOpen" event handler to manipulate the
661 >   "Where" and "Having" clauses to implement user specified filters of arbitrary
662 >   complexity.
663 >
664 > 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
665 >   three new data aware controls dependent on IBX and which make use of the SQL Parser.
666 >   These are:
667 >
668 >   - TIBLookupComboEditBox
669 >   - TIBDynamicGrid
670 >   - TIBTreeview
671 >
672 >   TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
673 >   of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
674 >   to revise the available list and restrict it to items that are prefixed by the
675 >   typed text (either case sensitive or case insensitive). Autoinsert allows a
676 >   newly typed entry to be added to the list dataset and included in the available
677 >   list items.
678 >
679 >   TIBDynamicGrid is a TDBGrid descendent that provides for:
680 >   - automatic resizing of selected columns to fill the available row length
681 >   - automatic positioning and sizing of a "totals" control, typically at the
682 >     column footer, on a per column basis.
683 >   - DataSet resorting on header row click, sorting the dataset by the selected column.
684 >     A second click on the same header cell reversed the sort order.
685 >   - Support for a "Panel Editor". That is on clicking the indicator column, the row
686 >     is automatically expanded and a panel superimposed on it. The panel can have any
687 >     number of child controls, typically data aware controls with the same datasource
688 >     as the grid allowing for editing of additional fields and more complex editors.
689 >   - Reselection of the same row following resorting.
690 >   - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
691 >     Its properties are specified on a per column basis and allows for one or more
692 >     columns to have their values selected from a list provided by a dataset.
693 >     Autocomplete and autoinsert are also available. The existing picklist editor
694 >     is unaffected by the extension.
695 >
696 >   TIBTreeView is a data aware TCustomTreeView.
697 >
698 > 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
699 >   zero scale will no longer return an error. An Int64 will be returned instead.
700 >
701 > 4. TIBTransaction now has events for Before and After Transaction End and a new function
702 >   "GetEndAction" allowing the EndAction to be accessed by these event handlers.
703 >
704 > 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
705 >   repeated multiple times.
706 >
707 > 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
708 >   check used to get in the way of using Stored Procedures, and "Update or Insert"
709 >   statements.
710 >
711 > 7. Insert, Modify and Delete property Editors now support Query Generation from
712 >   Stored Procedures.
713 >
714 > 8. Three new examples illustrate the use of the new IB Controls
715 >
716 >
717 > IBX Change Log  version  (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
718  
719   1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
720     setting performance. See "readme.field+param.names in the doc folder.(Thanks to

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