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Revision 13 by tony, Thu Nov 22 22:53:40 2012 UTC vs.
Revision 49 by tony, Thu Feb 2 16:20:12 2017 UTC

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1 + IBX Change Log  version                  (2.0-2) tba, 09 Jan 2017 15:31:49 +0000
2 +
3 + 1. TIBDatabase.CreateDatabase: extract full DB Name using reg ex in order to
4 +   include remote system name.
5 +
6 + 2. TIBExtract: No longer include comment header and COMMIT statement for empty
7 +   tables when data included in output.
8 +
9 + 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
10 +   and timing information to be written to stdout. This may be used to locate
11 +   performance bottlenecks.
12 +
13 + 4. SQLParser: only call "OnChanging" event handler when value is different.
14 +
15 + 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
16 +
17 + IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
18 +
19 + 1. TIBEvents: Fix uninitialised variable that could result in lost events.
20 +
21 + 2. TIBExtract: Added support for FB3 "USAGE" privilege.
22 +
23 + 3. TIBExtract: data formatted as Charset set "octets" is now output using
24 +   hexadecimal notation.
25 +
26 + 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
27 +   using a simple XML format.
28 +
29 + 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
30 +   grants to these objects.
31 +
32 + 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
33 +   dependency problems restoring complex databases.
34 +
35 + 7. TIBXScript: This component has been restructured to allow for the processing of
36 +   embedded XML in INSERT statements and to support interactive sources in addition
37 +   to non-interactive data sources such as files.
38 +
39 + 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
40 +
41 + 9. TIBXScript: ISQL compatiable Set statements are now supported:
42 +   SET SQL DIALECT
43 +   SET TERM
44 +   SET AUTODDL
45 +   SET BAIL
46 +   SET ECHO
47 +   SET COUNT
48 +   SET STATS
49 +   SET NAMES <character set>
50 +
51 + 10. IBVersion unit added to hold current IBX Version Number information.
52 +
53 + 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
54 +    and domain definitions.
55 +
56 + 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
57 +    fully supported.
58 +
59 + 13. TIBExtract: when a database dump includes data, the generator values are now also set.
60 +
61 + 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
62 +
63 + IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
64 +
65 + See also doc/readme.upgrade-4-x.to.2-0-0.xhtml for important information on
66 + upgrading to IBX2.
67 +
68 + 1. Size property of TIBStringField is now the width in characters of the field
69 +   and not the byte length. This applies only to multi-byte character sets such
70 +   as UTF8. The original approach aligned with TStringField. However, the TStringField
71 +   code is not recognised as a bug and hence this change to align the behaviour.
72 +   The TStringField change is expected in fpc 3.2.0.
73 +
74 + 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
75 +   true (default) then Size property value saved in the lfm is ignored. Size is
76 +   always set from the dynamic information read from the database. It is unclear
77 +   why anyone would want to override this and set Size to false.
78 +
79 + 3. ibxscript: should now handle correctly a Case..End statement within a procedure
80 +   block.
81 +
82 + 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
83 +   exist when an attempt is made to connect to it (run time only) then an attempt
84 +   is made to create the database.
85 +
86 + 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
87 +   has been successfully created as a result of a call to CreateDatabase or when
88 +   creating a database after it was found not to exist.
89 +
90 + 6.  DBControlGrid: a race condition could result in the wrong row image being
91 +    written to the cache. This has been avoided by a trip round the message
92 +    loop before rendering the row image.
93 +
94 + 7.  DBControlGrid: It is strongly recommended not to open the source DataSet for
95 +    a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
96 +    known to risk corrupt rendering of row images when the control is first
97 +    displayed. If necessary use "Application.QueueAsyncCall" to delay opening
98 +    of the dataset (see DBControlGrid examples) until the Form's Window has been created.
99 +
100 + 8.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
101 +    a TDateEdit control located on an editor panel.
102 +
103 + 9.  TIBExtract: brought up-to-date plus many bug fixes.
104 +
105 + 10. DBControlGrid: Removed memory leak when updating rows.
106 +
107 + 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
108 +
109 + IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
110 +
111 + 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
112 +   when target codepage is CP_NONE. This is a workaround for
113 +   http://bugs.freepascal.org/view.php?id=30622.
114 +
115 + 2. DBLog option removed from TIBStatisticalService - not supported by server
116 +   since Firebird 1.5.
117 +
118 + 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
119 +   similar.
120 +
121 + 4. IBCodePage: updated mapping between codepages and character id.
122 +
123 + 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
124 +   Firebird. Character sets with a char width of two are not UTF16.
125 +
126 + 6. Strings received from the database are now always transliterated into UTF8
127 +   regardless of the database character set or connection character set. This
128 +   is for compatibility with the LCL.
129 +
130 + IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
131 +
132 + 1. IBBlob: Defer reading of blob until read method called. This avoids having to
133 +   read in an entire blob just to get the size of the blob. General performance
134 +   improvement when opening datasets containing blobs.
135 +
136 + 2. Clearing a  Blob now sets the corresponding field's modified flag.
137 +
138 + 3. IBLookupCombo: When not performing auto-complete, original query sort order
139 +   is now used.
140 +
141 + 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
142 +   determined.
143 +
144 + 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
145 +
146 + 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
147 +   lazarus 1.6.0
148 +
149 + 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
150 +   compilation error.
151 +
152 + IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
153 +
154 + 1. No character set specified for connection: when a text blob is retrieved, the
155 +  character set is determined by looking up the native character set using then
156 +  Firebird API. Otherwise a text mode blob is assumed to have the same character
157 +  set as the connection.
158 +
159 + 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
160 +   for Login Dialog returing a change to the database path.
161 +
162 + 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
163 +   to be changed from that given in the TIBDatabase/TIBServer component and for the
164 +   entered value to be saved on a project specific basis (design time only).
165 +
166 + 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
167 +   column fieldname. If they are the same then it is acts as a look up for the KeyValue
168 +   Otherwise, it sets the column text to the selected ListField Value.
169 +
170 + 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
171 +   column width.
172 +
173 + 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
174 +   and a case insensitive search is requested.
175 +
176 + 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
177 +   or column ListSource.
178 +
179 + 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
180 +   unprepare) when closing and the text has not changed.
181 +
182 + 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
183 +   Less likely to cause a cursor re-use error on Windows.
184 +
185 + 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
186 +   Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
187 +
188 + 11. TIBTreeView: Guard against nil destination on record changed
189 +
190 + 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
191 +    string type with the code page set to reflect the returned field encoding after
192 +    Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
193 +    earlier versions.
194 +
195 + 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
196 +    will now result in transliteration to the code page specified for the Firebird driver
197 +    if the assigned string has a different code page. FPC 3.0.0 onwards only.
198 +
199 + 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
200 +    is ignored and the lc_ctype value, when the database is opened, is set to align with
201 +    the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
202 +    platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
203 +    3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
204 +    the GETACP is used to determine the Windows code page.
205 +
206 + 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
207 +    name used as the lc_ctype when the database was opened. Only valid while the
208 +    Database is connected.
209 +
210 + 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
211 +    id that corresponds to the DefaultCharSetName.
212 +
213 + IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
214 +
215 + 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
216 +   path is given and database attach fails due to access permission issues on the
217 +   temp directory or security database, then the attach is retried with "localhost:"
218 +   prefixing the databasename. This should avoid problems when the database has to
219 +   be accessed by a local (e.g. classic) server and libfbembed is used.
220 +
221 + 2. Windows: revised search order for Firebird DLL:
222 +     i.   The Firebird Embedded Server in the application Directory.
223 +     ii.  If the FIREBIRD environment variable is set then the directory this
224 +          points to is searched for the FB Client DLL and then then underlying
225 +          "bin" directory.
226 +     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
227 +          is used to locate the Firebird installation directory and the underlying
228 +          "bin" directory is searched for the FB Client DLL.
229 +     iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
230 +          are searched for the FB Client DLL.
231 +     v.   The PATH Environment variable is used to search for the FB Client DLL.
232 +     vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
233 +
234 + 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
235 +   See doc/readme.scriptengine and example applications.
236 +
237 + 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
238 +   simplify the use of the embedded firebird server on both Linux and Windows platforms.
239 +   See dpc/readme.localdatabase and example applications.
240 +
241 + 5. IBDynamicGrid: Reordering on column header click should now also work for
242 +   dynamic columns.
243 +
244 + 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
245 +   between incrementing/decrementing the lock count and signalling the event.
246 +
247 + IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
248 +
249 + 1.3.2 was never formally released and only made available as beta copies.
250 +
251 + 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
252 +
253 + 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
254 +
255 + 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
256 +
257 + 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
258 +   i.e. when it is a calculated field
259 +
260 + 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
261 +   This problem was due to a race condition between recalculating row heights and
262 +   determining which row was selected by the mouse click. The row height calculation
263 +   is now deferred by an extra trip round the message loop allowing the row to
264 +   be always calculated on the current grid layout rather than risking it being
265 +   calculated on the grid layout after the expanded row has been shrunk.
266 +
267 + 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
268 +   Windows.
269 +
270 + 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
271 +   These properties allow the (Firebird) character set name for the field and the max number of bytes per character
272 +   to be determined at runtime. See doc/readme.charactersets.html.
273 +
274 + 8. TIBWideStringField: This is a new field type with the same additional public properties as above and subclassed from
275 +   TWideStringField. This field type is used with the character size reported by Firebird is two. See doc/readme.charactersets.html.
276 +
277 + 9. TIBMemoField and TIBWideMemoField: new field types with the same additional public properties as above and subclassed from
278 +   TMemoField and TWideMemoField respectively. These field types are used with Blob subtype 1 and a characterset size of
279 +   1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
280 +
281 +   Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
282 +   from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
283 +   implies no truncation.
284 +
285 + 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
286 +
287 + 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
288 +   (avoids "Not in Edit Mode" error).
289 +
290 + 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
291 +
292 + 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
293 +    DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
294 +
295 + 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
296 +
297 + 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
298 +
299 + 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
300 +
301 + 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
302 +
303 + IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
304 +
305 + 1.   OnCloseUp Event Handler added to TDBLookupProperties
306 +
307 + 2.   IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
308 +     problem with row size when exception is called.
309 +
310 + 3.   IBLookupComboEditBox: Force pending autocomplete on combobox exit.
311 +
312 + 4.   IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
313 +     in a TCustomComboBox and ignores return key if in a TCustomMemo
314 +
315 + 5.   IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
316 +     keyed in i.e. when autocomplete not performed
317 +
318 + 6.   Cleanup of "Uses" clauses and add console mode support. IBX should now support
319 +     console mode applications with all LCL required functions (builtin dialogs and
320 +     cursor management) centralised in the  IBDialogs unit. As long as "IBDialogs" is
321 +     not included in your project, IBX should compile and link with a console mode program.
322 +     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
323 +     console mode application or the IDE will automatically assume that your
324 +     application is GUI based. Instead, you should include the ibexpressconsolemode package.
325 +
326 +     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
327 +     to use the built in dialogs and cursor management. IBDialogs is
328 +     included by default if "ibexpress" is in your project source's "uses" clause.
329 +     This should be the case for all projects created through the IDE. This is why
330 +     you do not want to add the ibexpress package to console mode applications. The
331 +     ibexpressconsolemode package has been created to allow console mode programs
332 +     to avoid adding LCL dependencies when using IBX, while still having the
333 +     unit search paths set up correctly.
334 +
335 +     Existing users should check to ensure that the "ibexpress" unit is included in
336 +     each project's source file (*.lpr).
337 +
338 +     You may find that in order for the IDE to recognise that ibexpressconsolemode
339 +     exists, you have to first open the package in the IDE and then close it. This
340 +     adds it to the most recently accessed packages list. To make it permanently
341 +     available, add the package name to lazarus' staticpackages.inc file.
342 +
343 +         Thanks to Julio Jiménez for suggesting support of console mode.
344 +
345 + 7.   SQL Parser can now accept quoted strings that include new lines
346 +
347 + 8.   IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
348 +     of text on start of edit. This is particularly useful when tabbing to a
349 +     column and then inserting text.
350 +
351 + 9.   New Examples provided for IB Services and ISQLMonitor.
352 +
353 + 10. Fix error when writing to blob streams that recorded only the last buffer
354 +    write in the blob stream. In most cases, this did not cause a problem as the
355 +    IB Blob Stream is written in a single write. However, with the TDBImage, write
356 +    of a graphic type prefix was lost which caused a problem when the image could
357 +        not be automatically recognised.
358 +
359 + 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
360 +    already open" errors due to random numbers used for the cursor name being identical.
361 +
362 + 12. IBTable: corrected error that could result in an "Index out of bounds" error
363 +    when opening the table and the Primary Key is the last or only column in the
364 +    table. Thanks to Rick Hoover for the fix.
365 +
366 + 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
367 +    of "UTF-8", and update list of available database character sets. Existing
368 +    users should check the current lc_ctype setting in their applications.
369 +
370 + IBX Change Log  version  (1.2-4) Sat, 09 May 2015 12:38:29 +0100
371 +
372 + 1.  Firebird Services: avoid List Index error when opening a service with an
373 +    empty Params property.
374 +
375 + 2.  IBControls: Fix problem with new link mechanism introduced in 1.2.3.
376 +    Link now set up in Loaded method - avoids occasional failure to apply
377 +    SQL markup on initial open.
378 +
379 + 3.  "Employees" example performance improvements when scrolling.
380 +
381 + 4.  DBControlGrid: Correctly handle edit panel removal when panel is child control of a
382 +    TFrame. Force recaching of selected frame to avoid GTK race (results in a
383 +    random image cached).
384 +
385 + 5.  DBControlGrid: Should now react to changes in panel height at run time.
386 +
387 + 6.  IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid  
388 +    even when further rows exist.
389 +
390 + 7.  DBControlGrid: DefaultRowHeight is no longer a published property as it should
391 +    always be derived from panel height and setting this property can cause confusion.
392 +    Note for existing projects: to avoid a missing property error at run time,
393 +    each form using the DBControlGrid must be opened, updated and saved in the IDE
394 +    in order to remove the property value from the lfm.
395 +
396 +
397 + IBX Change Log  version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
398 +
399 + 1.  TIBStoredProc. Prepare now called by ParamByName to avoid need to always
400 +    call Prepare before setting parameter values.
401 +
402 + 2.  Error message on ParamByName (all cases) not found now includes name of missing parameter.
403 +
404 + 3.  Code tidyup and more robust handling of dsql information result vector.
405 +
406 + 4.  Support for centralised handling of transaction status changes. TIBTransaction
407 +    has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
408 +    and "AfterExecQuery". The first three are called after the same event is called
409 +    for an IBCustomDataSet descendent using the Transaction. The fourth is called
410 +    after a call to TIBSQL.ExecQuery, again using this transaction. These new events
411 +    enable monitoring of transaction status changes for a given transaction to be
412 +    handled in a single place. For example, when a change to the dataset occurs
413 +    an indicator can be set that shows the user that in order to save changes,
414 +    the transaction should be committed.  Rather than doing this per dataset, this
415 +    can now be done per transaction.
416 +
417 + 5.  TDataSet.CheckBrowseMode automatically posts changes to the current row when
418 +    the dataset is scrolled. However, any changes to the current row are, by default,
419 +    discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
420 +    have a new property "DataSetCloseAction" that adds automatic posting of changes
421 +    on dataset close. If this property is set to dcDiscardChanges (default) then the
422 +    behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
423 +    then IBX will attempt to post any unsaved changes before the dataset is closed
424 +    (and after the BeforeClose event handler is called). The exception is when the
425 +    dataset is being closed as a result of a transaction rollback. In this case,
426 +    no action is taken and any unsaved  changes are discarded. This avoids both
427 +    unnecessary overhead and the risk that a validation error may occur in the Post
428 +    raising an exception and thereby preventing a rollback.
429 +
430 + 6.  String Field sizes and Display Widths should now be correct for multi-byte character sets.
431 +    In earlier versions, the Display Width was set to the maximum byte width rather than the character
432 +    width. Display Widths are now corrected by dividing by the max byte width per character.
433 +    For UTF8 character sets, the byte width is four and hence the Display Width will be
434 +    the byte width divided by 4. The byte width of each character set is determined
435 +    dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
436 +    system table. (see also http://bugs.freepascal.org/view.php?id=27766).
437 +
438 + 7.  SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
439 +
440 + 8.  IBLookupComboEditBox: List should now always be restored to full list when the
441 +    control loses focus. Default Key press default interval reduced to 200ms.
442 +
443 + 9.  DBControlGrid: Ensure that selection is changed to newly appended row, even
444 +    when dataset rows are less than visible rows.
445 +
446 + 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
447 +    does not exist or DataSet is empty. More responsive on dataset open. New event
448 +    OnRestorePosition. Column sort disabled if no header row.
449 +
450 + 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
451 +    while dataset state is dsInsert. Avoids posting errors.
452 +
453 + 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
454 +    avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
455 +
456 + 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
457 +
458 + 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
459 +    to solve a specific problem. That is when the dataset cursor is moved (e.g. by
460 +    a grid mouse click and the current row is being edited or inserted. In this case, TDataset
461 +    always "posts" the current record regardless or whether or not it may be more appropriate
462 +    to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
463 +    "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
464 +    as the first action of the "Post" method and allows the handler to convert the Post
465 +    into a Cancel if that is the appropriate action on moving to a different row. This is
466 +    achieved by returning with "CancelPost" argument set to true. Note that an exception could be
467 +    raised here, but it may still be more appropriate to validate a post and signal
468 +    a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
469 +
470 + 15. On Unix derived systems, the Firebird library name can now be given as a colon
471 +    separated list. Each library name on the list is tried in turn, in left to right
472 +    order with the first found being used as the firebird library. By default, on Linux,
473 +    the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
474 +    overidden by the FBLIB environment variable or the OnGetLibraryName function.
475 +
476 +    Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
477 +    then it will still attempt to access the database via the Firebird Server and will
478 +    require a username and password. If only the pathname is given, then the username
479 +    and password should be omitted and the unix file permissions are used to grant
480 +    access.
481 +
482 + IBX Change Log  version  (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
483 +
484 + 1.  A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
485 +    rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
486 +    that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
487 +    corresponds to a row of the linked DataSource. Any data aware control on the
488 +    replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
489 +
490 + 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
491 +   When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
492 +   takes place during database access. This may be useful when there are performance issues with
493 +   the change of cursor. Setting the property to false suppresses the change of cursor.
494 +
495 + 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
496 +   and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
497 +   Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
498 +   making all changes permanent immediately rather than when the transaction is explicitly
499 +   committed.
500 +
501 + 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
502 +   using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
503 +
504 + IBX Change Log  version      (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
505 +
506 + Development version only.
507 +
508 + IBX Change Log  version   (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
509 +
510 + 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
511 +   This is typically used during an "OnBeforeOpen" event handler to manipulate the
512 +   "Where" and "Having" clauses to implement user specified filters of arbitrary
513 +   complexity.
514 +
515 + 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
516 +   three new data aware controls dependent on IBX and which make use of the SQL Parser.
517 +   These are:
518 +
519 +   - TIBLookupComboEditBox
520 +   - TIBDynamicGrid
521 +   - TIBTreeview
522 +
523 +   TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
524 +   of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
525 +   to revise the available list and restrict it to items that are prefixed by the
526 +   typed text (either case sensitive or case insensitive). Autoinsert allows a
527 +   newly typed entry to be added to the list dataset and included in the available
528 +   list items.
529 +
530 +   TIBDynamicGrid is a TDBGrid descendent that provides for:
531 +   - automatic resizing of selected columns to fill the available row length
532 +   - automatic positioning and sizing of a "totals" control, typically at the
533 +     column footer, on a per column basis.
534 +   - DataSet resorting on header row click, sorting the dataset by the selected column.
535 +     A second click on the same header cell reversed the sort order.
536 +   - Support for a "Panel Editor". That is on clicking the indicator column, the row
537 +     is automatically expanded and a panel superimposed on it. The panel can have any
538 +     number of child controls, typically data aware controls with the same datasource
539 +     as the grid allowing for editing of additional fields and more complex editors.
540 +   - Reselection of the same row following resorting.
541 +   - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
542 +     Its properties are specified on a per column basis and allows for one or more
543 +     columns to have their values selected from a list provided by a dataset.
544 +     Autocomplete and autoinsert are also available. The existing picklist editor
545 +     is unaffected by the extension.
546 +
547 +   TIBTreeView is a data aware TCustomTreeView.
548 +
549 + 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
550 +   zero scale will no longer return an error. An Int64 will be returned instead.
551 +
552 + 4. TIBTransaction now has events for Before and After Transaction End and a new function
553 +   "GetEndAction" allowing the EndAction to be accessed by these event handlers.
554 +
555 + 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
556 +   repeated multiple times.
557 +
558 + 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
559 +   check used to get in the way of using Stored Procedures, and "Update or Insert"
560 +   statements.
561 +
562 + 7. Insert, Modify and Delete property Editors now support Query Generation from
563 +   Stored Procedures.
564 +
565 + 8. Three new examples illustrate the use of the new IB Controls
566 +
567 +
568 + IBX Change Log  version  (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
569 +
570 + 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
571 +   setting performance. See "readme.field+param.names in the doc folder.(Thanks to
572 +   Gabor Boros for reporting this problem and for testing the improvements).
573 +
574 + 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
575 +   See readme.field+param.names in the doc folder.
576 +
577 + 3. IBX SQL Editors will now automatically add double quotes around column names when the database
578 +   dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
579 +
580 + 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
581 +
582 + 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
583 +   actions.
584 +
585 + 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
586 +   thanks to Yuriy Kopnin for pointing this out).
587 +
588 + 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
589 +
590 + 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
591 +   for both fields and parameter setting.
592 +
593 + 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
594 +   visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
595 +
596 + 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
597 +    when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
598 +
599 + 11. TIBTable now has a property editor for "MasterFields"
600 +
601 + 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
602 +    GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
603 +
604 + 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
605 +    of settings is unrecognised. Selecting this radio button has no effect on the settings.
606 +  
607 +
608 + IBX Change Log  version                 (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
609 +
610 + 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
611 +
612 + IBX Change Log  version          (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
613 +
614 + 1. In a TIBCustomDataset descendent, a generator now only sets the value when
615 +   it is null. This allows for alternative user defined setting of the generator
616 +
617 +   Many thanks to Julio Jiménez for this fix
618 +
619 + 2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
620 +   and suggests that the user may have forgotten to install it.
621 +
622   IBX Change Log  version         (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
623  
624   1. Conditional compilation used to limit registration of TIntegerField to

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