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Revision 305 by tony, Fri Jul 17 22:51:19 2020 UTC

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1 < IBX Change Log  version                    (2.0-3) Fri, 13 Oct 2017 12:19:52 +0100
1 > FBINTF Change Log  version          (1.1-5 Build 12044) Fri, 17 Apr 2020 12:30:01 +0100
2  
3 < 1. IBCustomDataset: Minor change of PChar to PByte for compatibility with fbintf
4 <   changes.
3 > 1. ISQLParams.GetHasCaseSensitiveParams added. Returns true if param names are
4 >   case sensitive
5  
6 < 2. IBCustomDataset: Fixed use of incorrect datasize in TIBStringField.SetAsString.
7 <   Bug could result in truncated multi-byte character set values.
6 > 2. Single line SQL comments starting with '--' are now recognised by SQL Parser.
7  
8 < 3. Changes consequential on moving fbintf character set utility functions from
9 <   IFirebirdAPI to IAttachment.
8 > 3. New API Calls:
9 >        IColumnMetaData.GetStatement
10 >        IColumnMetaData.GetTransaction
11 >        ISQLData.GetStrLength
12 >        IResults.GetStatement
13 >        IAttachment.OpenBlob (using Blob metadata)
14 >        IAttachment.OpenArray (using array metadata)
15  
16 < 4. Avoid "Object is nil" error when opening a database with DefaultSystemCodePage = true
16 > 4. FBMessages: removal of unused messages
17  
18 < 5. IBLookupComboEditBox: avoid race condition when autocompleting text that occasionally
15 <   results in autocomplete ignoring prefix text.
18 > 5. TFBArray.Create (2nd case): ensure that FFirebirdClientAPI is correctly set.
19  
20 < 6. IBLookupComboEditBox: Ensure that cursor is not reset to start of text when
18 <   entering a new name into the text box.
20 > 6. TIBSQLStatementType: SQLSavePoint added to end of enumeration.
21  
22 < 7. IBCustomDataset: ensure that TIBStringField uses the field size reported by
21 <   Firebird rather than recomputing it.
22 > FBINTF Change Log  version          (1.1-4 Build 11515)  Fri, 28 Dec 2018 10:04:19 +0000
23  
24 < 8. Property Editor positioning tidy up: All IBX Property editors should now be
25 <   screen centre. Previously some were "poDesigned" which may be inappropriate
25 <   for multi monitor desktops.
24 > 1. Fix a problem with the SQL parameter parser that failed to recognise parameters
25 >   where the second character of the parameter name is a numeric.
26  
27 < IBX Change Log  version                   (2.0-2) Fri, 24 Feb 2017 12:17:53 +0000
27 > 2. New method for IAttachment: procedure getFBVersion(version: TStrings);
28 >   This returns the isc_version connection information as one or more lines.
29 >   This is the same information as returned by isql with the -z option.
30  
31 < 1. TIBDatabase.CreateDatabase: extract full DB Name from SQL using reg ex in order to
32 <   include remote system name.
31 > 3. If -dFIREBIRD3APIONLY is used as a compiler option then the legacy Firebird API
32 >   is no longer compiled in. Likewise, if -dLEGACYFIREBIRDAPIONLY is used as a
33 >   compiler option then the Firebird 3 API is no longer compiled in.
34  
35 < 2. TIBExtract: No longer include comment header and COMMIT statement for empty
33 <   tables when data included in output.
35 > 4. IColumnMetaData: new method.
36  
37 < 3. Profiling: IBSQL now has conditional compilation flags to enable query performance
38 <   and timing information to be written to stdout. This may be used to locate
39 <   performance bottlenecks.
37 >   TIBDateTimeFormats = (dfTimestamp, {SQL TIMESTAMP}
38 >                        dfDateTime,   {SQL DATETIME}
39 >                        dfTime);
40  
41 < 4. SQLParser: only call "OnChanging" event handler when value is different.
41 >   function GetDateTimeStrLength(DateTimeFormat: TIBDateTimeFormats): integer;
42  
43 < 5. IBDynamicGrid: Update handling of navigation keys for a TDateEdit
43 >   This returns the max. number of characters returned by the "AsString" method
44 >   when the SQL type of the column is respectively TIMESTAMP, DATETIME or TIME.
45  
46 < 6. IBCustomDataset: Set internalunprepared flag when transaction ends. This ensures
47 <   that BindFields is called when the query is next activated. Avoids FieldName
45 <   not found error.
46 > 5. Additional argument for IAttachment.PrepareWithNamedParameters -
47 >     CaseSensitiveParams: boolean = false
48  
49 < IBX Change Log  version                  (2.0-1) Mon, 09 Jan 2017 15:31:49 +0000
49 >   If this argument is set to true then SQL parameter names are assumed to be case
50 >   sensitive and must be referenced (using ISQLParams.ByName) using the case
51 >   sensitive name.
52  
53 < 1. TIBEvents: Fix uninitialised variable that could result in lost events.
53 > 6. Bug fix: when setting a query parameter, it is now possible, when the parameter
54 >   is of type VarChar or Char to set the parameter to a numeric value (e.g. using
55 >   .AsCurrency) and then subsequently to update the value to a non-numeric string
56 >   using .AsString.
57  
51 2. TIBExtract: Added support for FB3 "USAGE" privilege.
58  
53 3. TIBExtract: data formatted as Charset set "octets" is now output using
54   hexadecimal notation.
59  
60 < 4. TIBExtract: Binary Blobs and array data can now be embedded in INSERT statements
57 <   using a simple XML format.
60 > FBINTF Change Log  version                  (1.1-3) Wed, 05 Dec 2018 14:28:10 +0000
61  
62 < 5. TIBExtract: extract of individual Triggers and Stored Procedures can now include
60 <   grants to these objects.
62 > 1. DARWIN only syntax error: fix missing semi-colon in TFBClientAPI.LoadIBLibrary
63  
64 < 6. TIBExtract: Stored Procedures and Views output in dependency order to avoid
65 <   dependency problems restoring complex databases.
64 > 2. Restrict IsMultiThread check to Unix only for compatibility with
65 >   https://bugs.freepascal.org/view.php?id=30535
66  
67 < 7. TIBXScript: This component has been restructured to allow for the processing of
68 <   embedded XML in INSERT statements and to support interactive sources in addition
69 <   to non-interactive data sources such as files.
67 > 3. New SQL Tokeniser added to IBUtils. This is used to pre-process SQL with
68 >   named parameters and is intended to avoid problems with (e.g.) Execute Block
69 >   and processing internal parameters as statement parameters.
70  
71 < 8. TIBXScript: CREATE DATABASE, DROP DATABASE, CONNECT statements are now supported.
71 > 4. New interface IFirebirdLibrary provides access to the underlying firebird DLL
72 >   or shared object. Available via a new member (GetFBLibrary) of IFirebirdAPI.
73  
74 < 9. TIBXScript: ISQL compatiable Set statements are now supported:
72 <   SET SQL DIALECT
73 <   SET TERM
74 <   SET AUTODDL
75 <   SET BAIL
76 <   SET ECHO
77 <   SET COUNT
78 <   SET STATS
79 <   SET NAMES <character set>
74 > 5. New function added to IB.pas
75  
76 < 10. IBVersion unit added to hold current IBX Version Number information.
76 >   function LoadFBLibrary(aLibPathName: string): IFirebirdLibrary
77  
78 < 11. TIBExtract: Use character rather than byte length for VarChar procedure arguments.,
79 <    and domain definitions.
78 >   This allows a Firebird Library to be loaded from an explicit path. use the
79 >   IFirebirdLibrary.GetFirebirdAPI member function to get the Firebird API using
80 >   the library. It is possible to load Firebird libraries from different locations
81 >   simultaneously, each with a distinct IFirebirdAPI.
82  
83 < 12. TIBExtract: Triggers now use SQL2003 syntax and database and transaction triggers
87 <    fully supported.
83 > FBINTF Change Log  version               (1.1-2) Mon, 16 Apr 2018 09:30:32 +0100
84  
85 < 13. TIBExtract: when a database dump includes data, the generator values are now also set.
85 > 1. Firebird.pas: {$OBJECTCHECKS OFF} added to file to avoid runtime error when
86 >   program compiled with -CR command line switch.
87  
88 < 14: IBSQLEdit: Unit LCLPlatformDef added to uses clauses for lazarus 1.7 and later.
88 > 2. IServiceManager additions (informational):
89 >    function getProtocol: TProtocol;
90 >    function getPortNo: AnsiString;
91  
92 < IBX Change Log  version     (2.0-0) Tue, 06 Dec 2016 10:33:44 +0000
92 > 3. IServiceManager improved error handling. Interfaces changed:
93 >    function Start(Request: ISRB; RaiseExceptionOnError: boolean=true): boolean;
94 >    function Query(SQPB: ISQPB; Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
95 >    function Query(Request: ISRB; RaiseExceptionOnError: boolean=true) :IServiceQueryResults; overload;
96  
97 < See also doc/IBX4LazarusGuide.pdf for important information on
98 < upgrading to IBX2.
97 > 4. IAttachment addition (informational)
98 >    function GetSecurityDatabase: AnsiString;
99  
100 < 1. Size property of TIBStringField is now the width in characters of the field
101 <   and not the byte length. This applies only to multi-byte character sets such
102 <   as UTF8. The original approach aligned with TStringField. However, the TStringField
101 <   code is not recognised as a bug and hence this change to align the behaviour.
102 <   The TStringField change is expected in fpc 3.2.0.
100 > 5. IStatement: performance counters now updated after each Fetch. GetPerfStatistics
101 >   thus now returns accumulated stats for a select statement from opening a cursor
102 >   up to the last fetch.
103  
104 < 2. A new property AutoFieldSize: boolean has been added to TIBStringField. When
105 <   true (default) then Size property value saved in the lfm is ignored. Size is
106 <   always set from the dynamic information read from the database. It is unclear
107 <   why anyone would want to override this and set Size to false.
104 > 6. DARWIN: uloadlibrary.inc bug fix. Many thanks to Luigi Naimi for correcting
105 >   the problem.
106  
107 < 3. ibxscript: should now handle correctly a Case..End statement within a procedure
108 <   block.
107 > 7. Type change: "TPerfCounters = array[TPerfStats] of Int64". Note "Int64"
108 >   replaces deprecated "comp" type.
109  
110 < 4. IBDatabase: new property - CreateIfNotExists. If true and database does not
113 <   exist when an attempt is made to connect to it (run time only) then an attempt
114 <   is made to create the database.
110 > 10. Testsuite Test10 updated to include thread synchronisation for event reporting.
111  
112 < 5. IBDatabase: new event - OnCreateDatabase. This event is called after a database
117 <   has been successfully created as a result of a call to CreateDatabase or when
118 <   creating a database after it was found not to exist.
112 > 11. URL Connection Strings: inet4 and inet6 now recognised.
113  
114 < 6.  DBControlGrid: a race condition could result in the wrong row image being
121 <    written to the cache. This has been avoided by a trip round the message
122 <    loop before rendering the row image.
114 > 12. IBUtils: Parse and Make Connect String now recognise URL style loopback syntax.
115  
116 < 7.  DBControlGrid: It is strongly recommended not to open the source DataSet for
125 <    a DBControlGrid during a Form's "OnShow" event handler. Under GTK2 this is
126 <    known to risk corrupt rendering of row images when the control is first
127 <    displayed. If necessary use "Application.QueueAsyncCall" to delay opening
128 <    of the dataset (see DBControlGrid examples) until the Form's Window has been created.
116 > 13. IAttachment.CharSetName2CharSetID is now performed case insensitive.
117  
130 8.  DBControlGrid & IBDynamicGrid: Navigation keys should now work correctly with
131    a TDateEdit control located on an editor panel.
118  
119 < 9.  TIBExtract: brought up-to-date plus many bug fixes.
119 > FBINTF Change Log  version (1.1-1) Tue, 27 Feb 2018 16:51:16 +0000
120  
121 < 10. DBControlGrid: Removed memory leak when updating rows.
121 > 1. IBUtils.QuoteIdentifierIfNeeded: Add check for space character.
122  
123 < 11. TIBCMLocalDBSupport: fixed invalid free on upgrade.
123 > 2. IAttachment: add two new methods
124 >     function HasDefaultCharSet: boolean;
125 >     function GetDefaultCharSetID: integer;
126  
127 < IBX Change Log  version                                           (1.4-3) Thu, 22 Sep 2016 18:10:15 +0100
127 >   These return, respectively, true if a connection default character set was
128 >   specified and the character set id of the connection default character set.
129 >   The DefaultCharSetID is cached when the connection is opened and hence does not
130 >   require a database lookup.
131  
132 < 1. IBCustomDataset: When calling SetCodePage, no longer request transliteration
142 <   when target codepage is CP_NONE. This is a workaround for
143 <   http://bugs.freepascal.org/view.php?id=30622.
132 > 3. Avoid exception when a text blob is a stored procedure parameter.
133  
134 < 2. DBLog option removed from TIBStatisticalService - not supported by server
146 <   since Firebird 1.5.
134 > 4. Update test suite to include a test for a stored proc returning a text blob.
135  
136 < 3. ibxscript: An error is no longer generated for "on commit preserve rows" or
137 <   similar.
136 > 5. IAttachment: add
137 >      function GetRemoteProtocol: AnsiString;
138 >      function GetODSMajorVersion: integer;
139 >      function GetODSMinorVersion: integer;
140 >      function GetAuthenticationMethod: AnsiString;
141  
142 < 4. IBCodePage: updated mapping between codepages and character id.
142 >   These results are cached when the connection is opened and hence do not
143 >   require a database lookup.
144  
145 < 5. ftWideString and ftWideMemo withdrawn. There is no UTF16 character set in
146 <   Firebird. Character sets with a char width of two are not UTF16.
145 > 6. IAttachment: add "function GetConnectString: AnsiString;" This returns the
146 >   connect string used to create/connect to the database.
147  
148 < 6. Strings received from the database are now always transliterated into UTF8
149 <   regardless of the database character set or connection character set. This
150 <   is for compatibility with the LCL.
148 > 7. IAttachment: Create Database using SQL statement. The username and password
149 >   are now extracted and used to populate a DPB made available via IAttachment.getDPB.
150 >   It is now possible to use IAttachment disconnect/connect to reconnect to
151 >   a database for which the initial connection was established by a create
152 >   database sql statement. Available in FPC only.
153  
154 < IBX Change Log  version  (1.4-2) Thu, 22 Sep 2016 15:25:27 +0100
154 > 8. Update Test 1 to test 5, 6 and 7 above.
155  
156 < 1. IBBlob: Defer reading of blob until read method called. This avoids having to
163 <   read in an entire blob just to get the size of the blob. General performance
164 <   improvement when opening datasets containing blobs.
156 > 9. IBUtils code tidy up.
157  
158 < 2. Clearing a  Blob now sets the corresponding field's modified flag.
158 > 10. Parameter Block interfaces "find" method. As documented, this should have
159 >   returned a nil interface when the item could not be found. Instead, an empty
160 >   interface item was returned. "Find" now works as documented and will return
161 >   a nil interface if the item cannot be found.
162  
163 < 3. IBLookupCombo: When not performing auto-complete, original query sort order
169 <   is now used.
163 > 11. DBInformation: support added for isc_info_active_tran_count and isc_info_creation_date.
164  
165 < 4. IBDynamicGrid: Add OnSelectEditor event. Allows editor panel to be dynamically
166 <   determined.
165 > 12. DBInformation: New interfaces: IDIRB and IDIRBItem added to support DB Information
166 >    requests with additional parameters. This is to enable support for fb_info_page_contents
167 >    (return of page contents). Response to fb_info_page_contents returned as
168 >    a string with code page CP_NONE.
169  
170 < 5. IBDynamicGrid: Recompute column widths after dataset closed and re-opened.
170 > 13. DBInformation: Support for fb_info_pages_used and fb_info_pages_free added, plus
171 >    test suite updated.
172  
173 < 6. IBLookupCombo: LazUTF8 added to uses clause to avoid compilation problems post
174 <   lazarus 1.6.0
173 > 14. DBInformation: Support for fb_info_crypt_key (Firebird 3.0.3 onwards) added as
174 >    a string type, and fb_info_conn_flags (Firebird 3.0.3 onwards) added as an integer type.
175  
176 < 7. IBControls. Removed "runtime" from list of paths to avoid "multiple packages"
177 <   compilation error.
176 > 15. Service Manager: List of protocols supported expanded to include inet, wnet and xnet.
177 >    An overloaded version of IIFirebirdAPI.GetServiceManager also allows a non
178 >    default connection port to be specified.
179  
180 < IBX Change Log  version                                 (1.4-1) Tue, 17 May 2016 09:14:51 +0100
180 > FBINTF Change Log  version                             (1.1-0) Sun, 07 Jan 2018 15:20:02 +0000
181  
182 < 1. No character set specified for connection: when a text blob is retrieved, the
183 <  character set is determined by looking up the native character set using then
186 <  Firebird API. Otherwise a text mode blob is assumed to have the same character
187 <  set as the connection.
182 > 1. Fix issues with setting SQL Param values using SetAsString with Numeric types.
183 >   Scale is no longer ignored.
184  
185 < 2. TIBGUIInterface: this is an internal interface. Minor type changes to allow
186 <   for Login Dialog returing a change to the database path.
185 > 2. Fix issues with setting SQL Param values using SetAsString with Date values
186 >   not in locale format but which are recognised by Firebird. Date values that
187 >   cannot be converted to a string using Pascal library are now passed through
188 >   to Firebird as Text Strings.
189  
190 < 3. Design Time Database and Server login Dialogs now allow the Database Name/Server Name
191 <   to be changed from that given in the TIBDatabase/TIBServer component and for the
194 <   entered value to be saved on a project specific basis (design time only).
190 > 3. Lookup character set name by codepage amended to ensure that CP_UTF8 returns
191 >   UTF8 and not UNICODE_FSS.
192  
193 < 4. IBDynamicGrid: TDBLookupCellEditor now compares its DataFieldName with the
194 <   column fieldname. If they are the same then it is acts as a look up for the KeyValue
195 <   Otherwise, it sets the column text to the selected ListField Value.
193 > 4. Charset ID problem. When using Firebird 3, with no default database character set
194 >   and a column has a non-default collation specified, an incorrect character set
195 >   id was being reported that could result in a 'division by zero' error when
196 >   used by IBX. This has now been fixed.
197  
198 < 5. IBDynamicGrid: Only visible columns are now taken into account When recalculating
199 <   column width.
198 > 5. Move GetCharsetName, CharSetID2CodePage, CodePage2CharSetID, CharSetName2CharSetID,
199 >   CharSetWidth from IFirebirdAPI to IAttachment. This is a better data model as
200 >   the character sets supported can be updated on a per database basis. That is
201 >   it is possible to add a (Firebird) user defined character set to a database.
202  
203 < 6. IBLookupComboEditBox: Fix error with autocomplete query when a RelationName is given
204 <   and a case insensitive search is requested.
203 > 6. Add RegisterCharSet to IAttachment. This is used to register a user defined character
204 >   set supported by Firebird with the API.
205  
206 < 7. IBDynamicGrid: No longer ignores notifications removing Column Totals controls
207 <   or column ListSource.
206 > 7. Add missing isc_info_db_read_only to list of decoded Database Information items
207 >   in FBOutputBlock.pas and update test suite to include this item.
208  
209 < 8. IBQuery: no longer performs unnecessary refresh of SQL Text (and hence avoids an
210 <   unprepare) when closing and the text has not changed.
209 > 8. FB30Client: avoid always using "StartMultiple" when only a single database attachment.
210  
211 < 9. IBSQL: Base the cursor name on a GUID instead of a hexstr version of the class pointer.
212 <   Less likely to cause a cursor re-use error on Windows.
211 > 9. Loading Windows fbclient.dll: when using the FIREBIRD variable to locate the client
212 >   library or finding it by disk location, the PATH environment variable is now also set to
213 >   include the FIREBIRD directory. This is to ensure that the correct dlls in the
214 >   firebird client library dependencies are loaded.
215  
216 < 10.SV5IPC: include workaround for OSX. FPC 3.0.0 has broken ipc module for darwin.
216 <   Expected to be fixed in 3.0.2. Hence workaround only applies to 3.0.0.
216 > 10. Testsuite: Ensure consistent UTF-8 output on Windows console.
217  
218 < 11. TIBTreeView: Guard against nil destination on record changed
218 > 11. Testsuite: Update Windows script to include FPC 3.0.4 in search path.
219  
220 < 12. AnsiString Code page support: TIBStringField.AsString and TIBMemoField.AsString now return a
221 <    string type with the code page set to reflect the returned field encoding after
222 <    Firebird driver transliteration, if any.  FPC 3.0.0 onwards only. Behaviour unchanged for
223 <    earlier versions.
220 > 12. FB30Statement: Protect call to "Move" and avoid calling with a nil pointer
221  
222 < 13. AnsiString Code page support: Assigning to TIBStringField.AsString and TIBMemoField.AsString
223 <    will now result in transliteration to the code page specified for the Firebird driver
224 <    if the assigned string has a different code page. FPC 3.0.0 onwards only.
222 > 13. FB30Statement: A check has been added to ensure that all SQL Parameters
223 >    have been given a value (including NULL). Previously, failing to set the
224 >    value of an SQL Parameter could give rise to unpredictable results or
225 >    an SQLDA error.
226  
227 < 14. TIBDatabase: new property UseDefaultSystemCodePage. When set any lc_ctype parameter
230 <    is ignored and the lc_ctype value, when the database is opened, is set to align with
231 <    the DefaultSystemCodePage (FPC 3.0.0 onwards). Normally, this is what you want and should ensure
232 <    platform independence. Note: this applies to FPC 3.0.0 and earlier versions. Pre FPC
233 <    3.0.0, when this property is true, the lc_ctype is UTF8 except under windows when
234 <    the GETACP is used to determine the Windows code page.
227 > 14. FB30Statement/FB25Statement: Set SQLParam "modified" when string value set.
228  
229 < 15. TIBDatabase: new property DefaultCharSetName. This is the Firebird character set
230 <    name used as the lc_ctype when the database was opened. Only valid while the
238 <    Database is connected.
229 > 15. FBAttachment: Avoid string reference count error when processing an Ansistring
230 >    parameter in an array of const passed to IAttachment.OpenCursor, etc.
231  
232 < 16. TIBDatabase: new property DefaultCodePage (FPC >=3.0.0 only). This is the codepage
233 <    id that corresponds to the DefaultCharSetName.
232 > 16. FBAttachment: Allow for WideString and UnicodeString parameters in an array
233 >    of const passed to IAttachment.OpenCursor, etc.
234  
243 IBX Change Log  version                          (1.4-0) Mon, 15 Feb 2016 14:44:24 +0000
235  
236 < 1. Unix: If Firebird Embedded Server shared object is loaded and a local database
246 <   path is given and database attach fails due to access permission issues on the
247 <   temp directory or security database, then the attach is retried with "localhost:"
248 <   prefixing the databasename. This should avoid problems when the database has to
249 <   be accessed by a local (e.g. classic) server and libfbembed is used.
236 > FBINTF Change Log  version             (1.0-2) Sat, 04 Mar 2017 14:43:56 +0000
237  
238 < 2. Windows: revised search order for Firebird DLL:
252 <     i.   The Firebird Embedded Server in the application Directory.
253 <     ii.  If the FIREBIRD environment variable is set then the directory this
254 <          points to is searched for the FB Client DLL and then then underlying
255 <          "bin" directory.
256 <     iii. Registry Key HKEY_LOCAL_MACHINE\SOFTWARE\Firebird Project\Firebird Server\Instances
257 <          is used to locate the Firebird installation directory and the underlying
258 <          "bin" directory is searched for the FB Client DLL.
259 <     iv.  The Default installation directories C:\Program Files\Firebird\Firebird_2_x
260 <          are searched for the FB Client DLL.
261 <     v.   The PATH Environment variable is used to search for the FB Client DLL.
262 <     vi.  Finally the  PATH Environment variable is used to search for IBASE.DLL.
238 > 1. Change syntax to Mode Delphi
239  
240 < 3. New Component: TIBXScript. This is an ISQL compatible SQL script execution engine.
241 <   See doc/readme.scriptengine and example applications.
240 > 2. Change all uses of string type to explicit AnsiString in order to ensure
241 >   compatibility between Delphi and FPC.
242  
243 < 4. New Component: TIBlocalDBSupport. This is a TIBDatabase support component intended to
244 <   simplify the use of the embedded firebird server on both Linux and Windows platforms.
269 <   See dpc/readme.localdatabase and example applications.
243 > 3. Various syntax changes to ensure Delphi and FPC compilation including GUIDs
244 >   defined for each interface.
245  
246 < 5. IBDynamicGrid: Reordering on column header click should now also work for
272 <   dynamic columns.
246 > 4. Generics syntax variations for Delphi added
247  
248 < 6. ISQLMonitor: (Windows only). Mutex added to TMultilockGate to avoid race condition
249 <   between incrementing/decrementing the lock count and signalling the event.
248 > 5. PChar replaced with PByte expect where an actual string is being referenced,
249 >   where PAnsiChar is used instead.
250  
251 < IBX Change Log  version           (1.3-2) Tue, 26 Jan 2016 14:39:54 +0000
251 > 6. Review of type definitions in IBExternals to ensure Delphi compatibility
252  
253 < 1.3.2 was never formally released and only made available as beta copies.
253 > 7. Testsuite updated for Delphi
254  
255 < 1. DBControlGrid,IBDynamicGrid: Ignore down arrow and up arrow in TCustomMemo
255 > FBINTF Change Log  version            (1.0-1) Fri, 24 Feb 2017 12:17:57 +0000
256  
257 < 2. IBDynamicGrid: Now deals correctly with a single column grid which has no indicator and autosize column
257 > 1. Limit maximum Blob segment read/write to MaxuShort. Avoids data loss with
258 >   large blobs and the FB3 API.
259  
260 < 3. IBLookupComboEditBox: reset timer on each key press - avoids timer going off too early
260 > 2. Update Event Handling algorithm to avoid looping due to recreation of the
261 >   event block.
262  
263 < 4. IBDynamicGrid: Call event OnUpdateSortOrder even when aliasname not found in dataset
288 <   i.e. when it is a calculated field
263 > 3. Avoid invalid XSQLDA error when the only parameter is updated to null
264  
265 < 5. IBDynamicGrid: Fix problem selecting a different row when expanded row at end of grid.
266 <   This problem was due to a race condition between recalculating row heights and
267 <   determining which row was selected by the mouse click. The row height calculation
268 <   is now deferred by an extra trip round the message loop allowing the row to
294 <   be always calculated on the current grid layout rather than risking it being
295 <   calculated on the grid layout after the expanded row has been shrunk.
265 > 4. Array Handling: fix problem with text arrays with character set none. When the
266 >   DB connection has a default character set (e.g. UTF8), an error is raised by
267 >   Firebird if the space allocated is not enough to allow for transliteration, even
268 >   though it is not required for character set none.
269  
270 < 6. IBLookupComboEditBox: avoid race condition between cm_killfocus and cm_exit on
298 <   Windows.
270 > 5. IBUtils: List of reserved words brought up-to-date
271  
272 < 7. TIBStringField: Now has two new public properties: CharacterSetName: string and CharacterSetSize: integer;
301 <   These properties allow the (Firebird) character set name for the field and the max number of bytes per character
302 <   to be determined at runtime. See doc/readme.charactersets.html.
272 > 6. Add ISQL style performance statistics collection to IStatement
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.
274 > 7. Add IFirebirdAPI.CreateDatabase variant to allow execution of user provided
275 >   CREATE DATABASE statement.
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
309 <   1, 3 or 4 (TIBMemoField) or 2 (TIBWideMemoField). See doc/readme.charactersets.html.
277 > 8. Update SQL Statement parsing to allow for Array Dimensions. That is so that the ':' in
278 >   an array dimension is not mistaken for a named parameter prefix.
279  
280 <   Both also have a new published property "DisplayTextAsClassName". If false (default) the displaytext is generated
281 <   from the blob text by truncating the string to the displaywidth (in characters not bytes). A displaywidth of zero
313 <   implies no truncation.
280 > 9. Trim function no longer applied to result of GetAsString for SQL_TEXT
281 >   when Character set is octets. Avoids loss of non printable characters at start of string.
282  
283 < 10. IBLookupComboEditBox: Force autocomplete when EditingDone called and timer active.
283 > 10. Add function GetPerfStatistics to IStatement. This returns ISQL like performance
284 >    statistics for the last action. Requires use of procedure IStatement.EnableStatistics
285 >    to enable stats gathering.
286  
287 < 11. IBDynamicGrid: Call DataSet.Append when entering edit mode and dataset empty and not in insert state
318 <   (avoids "Not in Edit Mode" error).
287 > 11. API Version information added as constants to IB.pas
288  
289 < 12. IBDynamicGrid: Correctly resize grid when one column width plus indicator.
289 > 12. BlobMetaData character set id should now be the same as that given by IColumnMetaData.GetCharSetID
290  
291 < 13. IBDynamicGrid: Ensure Editor Panel has focus when shown - avoids Windows API calling
323 <    DBGrid.DoExit on subsequent mouse click (e.g. on child control such as a tabbed page control.
291 > 13. Firebird Character set "NONE" now interpreted as codepage CP_ACP.
292  
293 < 14. IBDynamicGrid: ignore up, down tab and return when editorpanel open and focus in a TCustomGrid descendent.
293 > FBINTF Change Log  version                                      (1.0-0) Tue, 06 Dec 2016 10:33:47 +0000
294  
295 < 15. DBControlGrid: Stop flashing grid when dataset closed and then re-opened while DisabledControls
295 > 1. Initial Release
296  
329 16. IBQuery: Bug fixed that prevented SQL being set programmatically once the Parser had been invoked.
330
331 17. IBCustomDataSet: On close, parser is now freed and Select SQL reverts to value before DataSet Opened.
332
333 IBX Change Log  version        (1.3-1) Sat, 18 Jul 2015 13:30:50 +0100
334
335 1.   OnCloseUp Event Handler added to TDBLookupProperties
336
337 2.   IBDynamicGrid: Call to OnEditorPanelHide is now last editor hide action - avoids
338     problem with row size when exception is called.
339
340 3.   IBLookupComboEditBox: Force pending autocomplete on combobox exit.
341
342 4.   IBDynamicGrid and DBControlGrid: Keyhandler now ignores up, down, escape and return keys if
343     in a TCustomComboBox and ignores return key if in a TCustomMemo
344
345 5.   IBLookupComboEditBox: Ensure that KeyValue is set correctly when full text
346     keyed in i.e. when autocomplete not performed
347
348 6.   Cleanup of "Uses" clauses and add console mode support. IBX should now support
349     console mode applications with all LCL required functions (builtin dialogs and
350     cursor management) centralised in the  IBDialogs unit. As long as "IBDialogs" is
351     not included in your project, IBX should compile and link with a console mode program.
352     See consolemode example and its "readme"for further guidence. DO NOT add the ibexpress package to a
353     console mode application or the IDE will automatically assume that your
354     application is GUI based. Instead, you should include the ibexpressconsolemode package.
355
356     IMPORTANT NOTE: IBDialogs must be included in GUI applications in order
357     to use the built in dialogs and cursor management. IBDialogs is
358     included by default if "ibexpress" is in your project source's "uses" clause.
359     This should be the case for all projects created through the IDE. This is why
360     you do not want to add the ibexpress package to console mode applications. The
361     ibexpressconsolemode package has been created to allow console mode programs
362     to avoid adding LCL dependencies when using IBX, while still having the
363     unit search paths set up correctly.
364
365     Existing users should check to ensure that the "ibexpress" unit is included in
366     each project's source file (*.lpr).
367
368     You may find that in order for the IDE to recognise that ibexpressconsolemode
369     exists, you have to first open the package in the IDE and then close it. This
370     adds it to the most recently accessed packages list. To make it permanently
371     available, add the package name to lazarus' staticpackages.inc file.
372
373         Thanks to Julio Jiménez for suggesting support of console mode.
374
375 7.   SQL Parser can now accept quoted strings that include new lines
376
377 8.   IBDynamicGrid: Lookup Cell Editor - the cursor is now positioned at end
378     of text on start of edit. This is particularly useful when tabbing to a
379     column and then inserting text.
380
381 9.   New Examples provided for IB Services and ISQLMonitor.
382
383 10. Fix error when writing to blob streams that recorded only the last buffer
384    write in the blob stream. In most cases, this did not cause a problem as the
385    IB Blob Stream is written in a single write. However, with the TDBImage, write
386    of a graphic type prefix was lost which caused a problem when the image could
387        not be automatically recognised.
388
389 11. Improve generation of random cursor names in TIBSQL - avoid risk of "cursor
390    already open" errors due to random numbers used for the cursor name being identical.
391
392 12. IBTable: corrected error that could result in an "Index out of bounds" error
393    when opening the table and the Primary Key is the last or only column in the
394    table. Thanks to Rick Hoover for the fix.
395
396 13. Fix TIBDatabase initialisation of lc_ctype under unix. Set to "UTF8" instead
397    of "UTF-8", and update list of available database character sets. Existing
398    users should check the current lc_ctype setting in their applications.
399
400 IBX Change Log  version  (1.2-4) Sat, 09 May 2015 12:38:29 +0100
401
402 1.  Firebird Services: avoid List Index error when opening a service with an
403    empty Params property.
404
405 2.  IBControls: Fix problem with new link mechanism introduced in 1.2.3.
406    Link now set up in Loaded method - avoids occasional failure to apply
407    SQL markup on initial open.
408
409 3.  "Employees" example performance improvements when scrolling.
410
411 4.  DBControlGrid: Correctly handle edit panel removal when panel is child control of a
412    TFrame. Force recaching of selected frame to avoid GTK race (results in a
413    random image cached).
414
415 5.  DBControlGrid: Should now react to changes in panel height at run time.
416
417 6.  IBDynamicGrid: Redraws rows below on panel editor hide - avoids blank space at end of grid  
418    even when further rows exist.
419
420 7.  DBControlGrid: DefaultRowHeight is no longer a published property as it should
421    always be derived from panel height and setting this property can cause confusion.
422    Note for existing projects: to avoid a missing property error at run time,
423    each form using the DBControlGrid must be opened, updated and saved in the IDE
424    in order to remove the property value from the lfm.
425
426
427 IBX Change Log  version (1.2-3) Tue, 14 Apr 2015 14:11:17 +0100
428
429 1.  TIBStoredProc. Prepare now called by ParamByName to avoid need to always
430    call Prepare before setting parameter values.
431
432 2.  Error message on ParamByName (all cases) not found now includes name of missing parameter.
433
434 3.  Code tidyup and more robust handling of dsql information result vector.
435
436 4.  Support for centralised handling of transaction status changes. TIBTransaction
437    has been given additional events "AfterEdit", "AfterInsert", "AfterDelete", "AfterPost"
438    and "AfterExecQuery". The first three are called after the same event is called
439    for an IBCustomDataSet descendent using the Transaction. The fourth is called
440    after a call to TIBSQL.ExecQuery, again using this transaction. These new events
441    enable monitoring of transaction status changes for a given transaction to be
442    handled in a single place. For example, when a change to the dataset occurs
443    an indicator can be set that shows the user that in order to save changes,
444    the transaction should be committed.  Rather than doing this per dataset, this
445    can now be done per transaction.
446
447 5.  TDataSet.CheckBrowseMode automatically posts changes to the current row when
448    the dataset is scrolled. However, any changes to the current row are, by default,
449    discarded when the dataset is closed. TIBDataSet, TIBQuery and TIBTable now
450    have a new property "DataSetCloseAction" that adds automatic posting of changes
451    on dataset close. If this property is set to dcDiscardChanges (default) then the
452    behaviour is unchanged from previous versions. if the value is set to dcSaveChanges
453    then IBX will attempt to post any unsaved changes before the dataset is closed
454    (and after the BeforeClose event handler is called). The exception is when the
455    dataset is being closed as a result of a transaction rollback. In this case,
456    no action is taken and any unsaved  changes are discarded. This avoids both
457    unnecessary overhead and the risk that a validation error may occur in the Post
458    raising an exception and thereby preventing a rollback.
459
460 6.  String Field sizes and Display Widths should now be correct for multi-byte character sets.
461    In earlier versions, the Display Width was set to the maximum byte width rather than the character
462    width. Display Widths are now corrected by dividing by the max byte width per character.
463    For UTF8 character sets, the byte width is four and hence the Display Width will be
464    the byte width divided by 4. The byte width of each character set is determined
465    dynamically when the database connection is estabished from the RDB$CHARACTER_SETS
466    system table. (see also http://bugs.freepascal.org/view.php?id=27766).
467
468 7.  SQLParser will now correctly parse SQL Text which contains ':' within quoted string.
469
470 8.  IBLookupComboEditBox: List should now always be restored to full list when the
471    control loses focus. Default Key press default interval reduced to 200ms.
472
473 9.  DBControlGrid: Ensure that selection is changed to newly appended row, even
474    when dataset rows are less than visible rows.
475
476 10. IBDynamicGrid: Editor Panel is not shown on indicator click if Datasource
477    does not exist or DataSet is empty. More responsive on dataset open. New event
478    OnRestorePosition. Column sort disabled if no header row.
479
480 11. IBTreeView: improved handling of response to "Add Node". Avoid scrolling dataset
481    while dataset state is dsInsert. Avoids posting errors.
482
483 12. IBControls: New mechanism for distributing UpdateSQL and UpdateParams events. This is to
484    avoid conflict with DisableControls/EnableControls with Master/Detail linked tables.
485
486 13. IBLookupComboEditBox: Now avoids SQL Errors when combo box text contains single quotes.
487
488 14. TIBDataSet and TIBQuery: new Event - OnValidatePost. This event has been introduced
489    to solve a specific problem. That is when the dataset cursor is moved (e.g. by
490    a grid mouse click and the current row is being edited or inserted. In this case, TDataset
491    always "posts" the current record regardless or whether or not it may be more appropriate
492    to cancel any changes; the post occurs before the "BeforeScroll" event fires due to the way the
493    "MoveBy" function is implemented by TDataSet. The OnValidatePost event is called
494    as the first action of the "Post" method and allows the handler to convert the Post
495    into a Cancel if that is the appropriate action on moving to a different row. This is
496    achieved by returning with "CancelPost" argument set to true. Note that an exception could be
497    raised here, but it may still be more appropriate to validate a post and signal
498    a problem in the "BeforePost" event handler. See readme.automaticposts.xhtml)
499
500 15. On Unix derived systems, the Firebird library name can now be given as a colon
501    separated list. Each library name on the list is tried in turn, in left to right
502    order with the first found being used as the firebird library. By default, on Linux,
503    the library name list is 'libfbembed.so.2.5:libfbembed.so.2.1:libfbclient.so.2'. This can be
504    overidden by the FBLIB environment variable or the OnGetLibraryName function.
505
506    Note: when using the libfbembed.so, if you prefix the database name with "localhost:"
507    then it will still attempt to access the database via the Firebird Server and will
508    require a username and password. If only the pathname is given, then the username
509    and password should be omitted and the unix file permissions are used to grant
510    access.
511
512 IBX Change Log  version  (1.2-2) Sat, 14 Mar 2015 11:35:04 +0000
513
514 1.  A new IBControl - TDBControlGrid has been added. TDBControlGrid a lookalike
515    rather than a clone for the Delphi TDBCrtlGrid. TDBControlGrid is a single column grid
516    that replicates a TWinControl - typically a TPanel or a TFrame in each row. Each row
517    corresponds to a row of the linked DataSource. Any data aware control on the
518    replicated (e.g.) TPanel will then appear to have the appropriate value for the row.
519
520 2. As suggested by Julio Jiménez, a new property "SQLHourGlass" has been added to TIBDatabase.
521   When set to false (default true), the Hour Glass cursor is supcpressed and no cursor change
522   takes place during database access. This may be useful when there are performance issues with
523   the change of cursor. Setting the property to false suppresses the change of cursor.
524
525 3. As suggested by Julio Jiménez, a new property "AutoCommit" has been added to TIBDataSet, TIBQuery
526   and TIBTable. When set to acCommitRetaining (Default: acDisabled), a call is made to
527   Transaction.CommitRetaining immediately after every Post or Delete. This has the effect of
528   making all changes permanent immediately rather than when the transaction is explicitly
529   committed.
530
531 4. Experimental support for the Firebird 3 SQL_BOOLEAN type has been added while still
532   using the legacy Firebird API. Thanks to Gabor Boros for helping to test this feature.
533
534 IBX Change Log  version      (1.2-1) Fri, 13 Mar 2015 11:14:15 +0000
535
536 Development version only.
537
538 IBX Change Log  version   (1.2-0) Thu, 26 Feb 2015 10:34:04 +0000
539
540 1. An internal select SQL Parser is now available for TIBCustomDataset descendents.
541   This is typically used during an "OnBeforeOpen" event handler to manipulate the
542   "Where" and "Having" clauses to implement user specified filters of arbitrary
543   complexity.
544
545 2. A new Component Palette entry "Firebird Data Controls" is now available. This has
546   three new data aware controls dependent on IBX and which make use of the SQL Parser.
547   These are:
548
549   - TIBLookupComboEditBox
550   - TIBDynamicGrid
551   - TIBTreeview
552
553   TIBLookupComboEditBox is a TDBLookupComboBox descendent that implements "autocomplete"
554   of typed in text and "autoinsert" of new entries. Autocomplete uses SQL manipulation
555   to revise the available list and restrict it to items that are prefixed by the
556   typed text (either case sensitive or case insensitive). Autoinsert allows a
557   newly typed entry to be added to the list dataset and included in the available
558   list items.
559
560   TIBDynamicGrid is a TDBGrid descendent that provides for:
561   - automatic resizing of selected columns to fill the available row length
562   - automatic positioning and sizing of a "totals" control, typically at the
563     column footer, on a per column basis.
564   - DataSet resorting on header row click, sorting the dataset by the selected column.
565     A second click on the same header cell reversed the sort order.
566   - Support for a "Panel Editor". That is on clicking the indicator column, the row
567     is automatically expanded and a panel superimposed on it. The panel can have any
568     number of child controls, typically data aware controls with the same datasource
569     as the grid allowing for editing of additional fields and more complex editors.
570   - Reselection of the same row following resorting.
571   - A new cell editor that provides the same functionality as TIBLookupComboEditBox.
572     Its properties are specified on a per column basis and allows for one or more
573     columns to have their values selected from a list provided by a dataset.
574     Autocomplete and autoinsert are also available. The existing picklist editor
575     is unaffected by the extension.
576
577   TIBTreeView is a data aware TCustomTreeView.
578
579 3. When getting a field value using FieldByName.AsVariant, an SQL_INT64 with a
580   zero scale will no longer return an error. An Int64 will be returned instead.
581
582 4. TIBTransaction now has events for Before and After Transaction End and a new function
583   "GetEndAction" allowing the EndAction to be accessed by these event handlers.
584
585 5. TIBQuery can now handle correctly queries which contain the same keyword parameter
586   repeated multiple times.
587
588 6. TIBUpdateSQL will no longer return an error when "RowsAffected" is <> 1. This error
589   check used to get in the way of using Stored Procedures, and "Update or Insert"
590   statements.
591
592 7. Insert, Modify and Delete property Editors now support Query Generation from
593   Stored Procedures.
594
595 8. Three new examples illustrate the use of the new IB Controls
596
597
598 IBX Change Log  version  (1.1-0) Mon, 07 Jul 2014 14:01:07 +0100
599
600 1. TIBXSQLVAR code clean up and optimisation to improve client side "prepare" and parameter
601   setting performance. See "readme.field+param.names in the doc folder.(Thanks to
602   Gabor Boros for reporting this problem and for testing the improvements).
603
604 2. IBX can now support dialect 3 quoted column names that contain spaces and which differ only in their case.
605   See readme.field+param.names in the doc folder.
606
607 3. IBX SQL Editors will now automatically add double quotes around column names when the database
608   dialect is "3" and the column name contains spaces or is a Firebird 2.5 SQL Reserved Word.
609
610 4. Param Type LargeInt now supported in TIBQuery and TIBStoredProc
611
612 5. TIBSQL.ExecQuery retry on failure removed to avoid problems with "at most once"
613   actions.
614
615 6. TIBTransaction.SetDefaultDatabase uses SetObjectProp instead of mis-using SetOrdProp (with
616   thanks to Yuriy Kopnin for pointing this out).
617
618 7. GenerateParamName is now a published property of TIBSQL, TIBQuery and TIBDataSet.
619
620 8. varWord, varShortInt and varInt64 added to TIBXSQLVAR.SetAsVariant and hence now available as variant types
621   for both fields and parameter setting.
622
623 9. Changes to the Select SQL in an IBCustomDataset descendent should now be
624   visible in the Fields Editor immediately afterwards - rather than only after cycling the "active" property.
625
626 10. TIBSQL SQL editor will operate correctly and not report an SQL syntax error on SQL test,
627    when DSQL ('?') parameter placeholders are used and the TIBSQL.GenerateParamNames property is set to true.
628
629 11. TIBTable now has a property editor for "MasterFields"
630
631 12. SQL Property Editors now include a checkbox "Allow DSQL Placeholder". This corresponds to the
632    GenerateParamNames property and should be set when using DSQL (i.e. '?') style parameters.
633
634 13. The IBTransaction editor now has a radio button ("Unspecified") which is set when the combination
635    of settings is unrecognised. Selecting this radio button has no effect on the settings.
636  
637
638 IBX Change Log  version                 (1.0-5) Sat, 28 Dec 2013 19:22:23 +0000
639
640 1. TBookmark change conditional compile changed to >= 2.7.0 to match revised availability of change.
641
642 IBX Change Log  version          (1.0-4) Thu, 28 Feb 2013 16:56:13 +0000
643
644 1. In a TIBCustomDataset descendent, a generator now only sets the value when
645   it is null. This allows for alternative user defined setting of the generator
646
647   Many thanks to Julio Jiménez for this fix
648
649 2. An Error Dialog is now displayed in the Lazarus IDE if IBX cannot find the Firebird Library
650   and suggests that the user may have forgotten to install it.
651
652 IBX Change Log  version         (1.0-3) Thu, 22 Nov 2012 22:53:39 +0000
653
654 1. Conditional compilation used to limit registration of TIntegerField to
655   Lazarus versions less than 1.1
656
657 2. When a database connection is created, character set is now by default set
658   to UTF8 (Unix) or to the current Windows code page (Windows) if in the range
659   1250 to 1254.
660
661
662 IBX Change Log  version     (1.0-2) Tue, 09 Oct 2012 09:10:30 +0100
663
664 1. TBookmark change conditional compile changed to > 2.6.2 to match expected availability of change.
665
666
667 IBX Change Log  version    (1.0-1) Sun, 05 Aug 2012 20:00:04 +0100
668
669 1. In IBCustomDataset. Changed CurBookmark from string to TBookmark for compiler versions > 2.6.0
670   Necessary because of TBookmark type and TDataSet.Bookmark property change in fpc 2.7.1
671
672 2. IBX now registers TIntegerField as a "No Icon" component. This may be removed if the fpc DB
673   package is changed to do this (which it should do).
674
675 IBX Change Log  version (1.0-0)  Sat, 28 Apr 2012 16:43:00 +0100
676
677 1. Add "if active then active := false" to TIBCustomDataset destructor. (Avoid error on database close).
678
679 2. Make use of $STATIC conditional in IBSQLMonitor (Needed for FPC 2.6.0 compliance)
680
681 3. Database Property Editor: Character Set drop down box now uses "OnChange" rather than "OnCloseUp" to react to changes
682
683 4. Property editors should now correctly resize.
684
685 5. In IBDatabaseEdit.TestClick, the LoginPrompt is now set to the state of the LoginPrompt Checkbox
686   (restored original functionality)
687
688 6. Under OSX, if IBX fails to load libfbclient.dylib, it will now try and load the firebird
689   library using the absolute path /Library/Frameworks/Firebird.framework/Firebird.

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