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{{Try}} ...ine>try</syntaxhighlight>..[[Finally|<syntaxhighlight lang="pascal" inline>finally</syntaxhighlight>]] [[Block|block]] or a

{{Finally}} ...regardless of whether the preceding <syntaxhighlight lang="pascal" inline>try</syntaxhighlight> block was fully executed or has been exited early (in cas

{{Except}} ...[Reserved word|reserved word]] that is only used in conjunction with [[Try|try]].

** [[If and Then|<syntaxhighlight lang="pascal" inline>if … then … end</syntaxhighl ...y, Except and Finally|<syntaxhighlight lang="delphi" inline>try … except … finally … end</syntaxhighlight>]] (poikkeukset)

try finally

| opens a file for reading and writing try

...tomatic'' indentation. These options are either too simple or too complex. And the other editors only allow one set of rules, so editing sources with diff ...ules from the surrounding code. It does that by searching for similar code and copying the indent.

** most prominently [[If and Then|<syntaxhighlight lang="pascal" inline>if … then … end</syntaxh ...y, Except and Finally|<syntaxhighlight lang="delphi" inline>try … except … finally … end</syntaxhighlight>]]

...rst step to accessing CDDB is creating TCDDB. This is where the connection and application information is defined. TCDDB has some default values so you do First try using the MOTD (Message of the Day) command.

...n tasks. It can be found on the [[SQLdb tab]] of the [[Component Palette]] and resides in the FBAdmin unit. It provides the following functionality: * backup and restore databases using single or multiple (split) files

...ds or create an instance of the class and then use it's fields, properties and methods. ...their constructor. The instance will then be freed when the owner is freed and calling Free manually isn't necessary.

bzip2lib provides stream classes for bzip2 compression and decompression. It uses external bzip2 libraries. Unit bzip2lib is collected and edited from 2 unit files in [https://wiki.delphi-jedi.org/wiki/JEDI_Code_Li

...rchMask in the SearchPath directory and, if specified, its subdirectories, and populates a [[TStrings|stringlist]] with the resulting filenames. ...versions of this routine. The first one is a '''[[Procedure|procedure]]''' and assumes that the receiving stringlist already has been created.

A light web server that supports HTTPS currently written with [[Synapse]] and Free Pascal: try

This argument must be assignment-compatible to and defines the functions result before actually transferring control to the fu

Here's a unit that works under both Windows and Linux try

{{Avoiding implicit try finally section}} ...try </syntaxhighlight>]] … [[Finally|<syntaxhighlight lang="pascal" inline>finally</syntaxhighlight>]] statement.

...PCustomBrush</tt>''' is a fundamental property of <tt>TFPCustomCanvas</tt> and defines how a geometric shape is filled in ''fcl-image''. ***'''<tt>bsCross</tt>''' and '''<tt>bsDiagCross</tt>''' define a crossed pattern.

...ree Pascal]] supports exceptions. Exceptions are useful for error handling and avoiding resource leaks. However, bear in mind that exceptions have a perfo ...t</syntaxhighlight>]], and [[Finally|<syntaxhighlight lang="pascal" inline>finally</syntaxhighlight>]] [[Reserved word|reserved words]] for use in your own co

* '''ReadLn''' - Read from a text file into variable and goto next line（读取文本文件并转到下一行） * '''WriteLn''' - Write variable to a text file and append newline（写入新行到文件）

TNameObject = class(TCollectionItem) // class for the 'obj' property and TCollection // Create Collection and StringList

<code>/dev/random</code> and <code>/dev/urandom</code> are two pseudo character devices providing user-l Following the paradigm “everything is a file” they usually exist on Unix and *nix-based operating systems, like [[Linux]] or [[FreeBSD]].

This class lets you compress and decompress '''.zip''' files. try

This example shows how to create dialog in runtime, and to add custom buttons in runtime: try

...alent and older, just '''Text''') is used in a Pascal program to read from and write to a text file. try

...ur) and in macOS 12 (Monterey), the notification daemon ignores the action and logs "error usernoted Denying message 3 from connection <LegacyConnection i try

...gram a variable of type '''file''' may be used to read, write or both read and write to a file. A file variable is (usually) associated with a file on a d (See [[File Handling In Pascal]] for a more object oriented approach and more examples.)

* dt - may be included more than once and specifies what to return in the reply * rm - transcription / transliteration of source and translated texts

try finally

try finally

try try

while ((HTTPGetResult = False) and (RetryAttempt < MaxRetries)) do try

* fpjson: base unit which implements TJsonData and its children, e.g. TJsonObject try

...teBufStream''' streams. It completely handles the buffer memory management and position management. An instance of TBufStream should never be created dire ...ocesses where your application is reading or writing small 'lumps' of data and the underlying operating system is far more efficient handling data in siza

**[[TPersistent]], [[IFPObserved]] - Base class for streaming system and persistent properties - Interface implemented by an object that can be obse ...ed</tt>, <tt>Duplicates</tt> and [[case-sensitive|<tt>CaseSensitive</tt>]] and [[Method|methods]] like <tt>Find</tt> to facilitate speeded search within a

This page is for expert users who know how to use/install Lazarus and want to write an installer for a platform. =Primary and secondary config files=

const strSourceFile : string; // Path and name of the original file try

Dialog is shown with the Execute() method, and if this returns [[True]], property ModalResult has ModalResult of the press ...urns <tt>True</tt> if the dialog was opened successfully. On Windows Vista and up, a native dialog is show, which may fail (because of inconsistent parame

while ((HTTPGetResult = False) and (RetryAttempt < MaxRetries)) do try

...tc. in an executable file. Support for that was added to Delphi around v3, and was partly functional in Lazarus 0.9.24. ...o implicit provision in the ELF file format for version numbers, copyright and so on, but Lazarus stores this in resource sections. Reading the informatio

...eptions. You can use the usual mechanisms ''try..finally..end'' and ''try..except..end'' to handle them. ...hat does what a normal callback does, but inserts code to catch exceptions and route them to the rtl.

TSQLScript is available for both FPC and Lazarus and runs on any database that [[SQLdb]] supports. It can be found on the [[SQLd This example assumes you have existing SQL connection and transaction objects set up.

...platforms. The ODAC library is designed to help programmers develop faster and more native Oracle database applications. ...4 versions on Windows do not include an Oracle connector. If you enable it and test successfully, please submit a patch with the changes so it can be incl

...platforms. The ODAC library is designed to help programmers develop faster and more native Oracle database applications. ...4 versions on Windows do not include an Oracle connector. If you enable it and test successfully, please submit a patch with the changes so it can be incl

...que for each user, the user is guaranteed to have write permissions to it, and it is in a hashed location which is not predictable in advance so that it ...matically every 3 days but otherwise persists between application launches and reboots.

fphttpclient is supplied with FPC as part of the [[fcl-web]] package, and can be used by itself as well. ...SL/TLS connections using the OpenSSL library (will ship with version 2.8.0 and above). This requires the OpenSSL .so/.dll/.dylib library/libraries to be i

== Application Support and Preferences Folders == ...te the macOS user preferences directory because the [[Mac Preferences Read and Write|CFPreferences read/write methods]] will do this for you automatically

{{Avoiding implicit try finally section}} = Epäsuoran try finally lohkon välttäminen =

try finally

* [[TCollection]] and [[TStrings]] can used as a replacements for arrays. ...ype Information (RTTI)|runtime type information (RTTI)]] is created for it and all subclasses. These are essential for streaming. Since fpjsonrtti does no

...mmands like 'Edit' and 'Print'. This must be in English for 'Edit', 'Open' and 'Print' so it can access the right registry entry. You can customize the tr // you can change Extension and Action part for each extension you have

This class lets you compress and decompress '''.zip''' files. TZipper implements support for compressing and decompressing .zip files, but does not support all zip compression methods.

procedure PropertyExample(); //shows how to set properties and read them try

try finally

...data format. As the name implies, JSON documents are valid JavaScript code and can be directly converted into JavaScript objects. However, JSON can be use This tutorial explains how to load JSON data into a Free Pascal program and process it there. It also explains how to convert data from the program int

On Windows Vista and above, you will run in trouble with the FPU interrupt mask (see [http://sta try

...result of a [[TSQLQuery]] correctly setup to link with a [[TSQLConnector]] and [[TSQLTransaction]]) also <tt>FormatSettings.TableName</tt> need be provid try

| &nbsp; [[And]] | &nbsp; try { } catch

...ext to be "collapsed". This will hide all but the first line of the block, and the first line will be marked with the folded-symbol "[...]" at the end of ...a foldable region. The vertical line begins immediately below the [+] sign and continues to the last line of the foldable block. On the last line it displ

...ng on the result start the next and so forth. Instead of writing a tedious and hard to read mass of sub functions an async procedure can be written in the ...''await'' calls, each ''await'' pauses the execution of the async function and continues it asynchronously (single threaded) later.

try finally

try finally

...ings is not possible in FPC). It will come in handy a lot when programming and I'm going to teach you basic TStringList usage! This is a simple [[Command-line_interface|console program]] that will create and add one string to a stringlist.

...amable contents. For example: stream an object into a JSON-format, or xml. And vice-versa. ...te. This mean that a good design is crucial. So if you can have had a look and have some ideas how to improve it, mail me: <joost@cnoc.nl>. (Ideas for ano

== How to catch and prevent Range Errors == Range errors are easy to introduce and sometimes hard to find.

Windows Credential Store allows applications to store user names and passwords in a more secure way, than configuration files can provide. The following unit provides three functions to read, write and delete these data in the credential store. You have to provide a *Target* i

fpwebfile is a unit with a simple HTTP module (''TFPCustomFileModule'' and ''TSimpleFileModule'') to serve files in fcl-web. You don't need to do anything except register a location from which to serve files.

...mmands NET START and NET STOP use the service display name, the command SC and the code below use the service internal name. The display name is the one g ...there is one item in the DaemonDefs. The item has a name of "'''MyServ'''" and the associated "DisplayName" property has the value of "'''Internal build s

try finally

This port is a translation of the c header files for both MagickWand and Magick Core. BSD-style and compatible with the GPL.

...polygons, ellipses and Bézier curves can be added to images and stretched and rotated. ...all major operating systems and it can also be used from the command line and its command line tools package is one of Linux standard packages, being dis

TRY FINALLY

...ject=:::A subject line'</nowiki>, web addresses <nowiki>'http://'</nowiki> and files <nowiki>'file:///'</nowiki>. You can use its method FindDefaultBrowser to find the default browser and the parameter to start. For example:

* [[Mode Delphi | Delphi mode]]: the Turbo Pascal and Object Pascal keywords are available for you to use * [[Mode ObjFPC | Extended Free Pascal mode]]: the Turbo Pascal and Object Pascal keywords are available for you to use

...http://www.freepascal.org/docs-html/fcl/inifiles/index.html IniFiles unit] and the [http://www.freepascal.org/docs-html/fcl/inifiles/tinifile.html TINIFil ...ing [http://en.wikipedia.org/wiki/INI_file#Sections sections] is mandatory and only the semicolon can be used for comments.

...dealing with Pascal source files: Parsing, creating structures in memory, and output to files. |[[paswrite]] || A class and helper functions for creating Pascal source files from parse trees

|absolute || and || array || asm || begin || break || case || const | as || class || except || exports || finalization || finally || initialization

...</syntaxhighlight>]] ja [[Finally/fi|<syntaxhighlight lang="pascal" inline>finally</syntaxhighlight>]] [[Reserved word/fi|varatut sanat]] käytettäväksi oma ...<syntaxhighlight lang="pascal" inline>ExceptFrameCount</syntaxhighlight>, and <syntaxhighlight lang="pascal" inline>BackTraceStrFunc</syntaxhighlight>.

(GetVersionEx(osVInfo) = True) and (osVinfo.dwPlatformId = VER_PLATFORM_WIN32_NT) and

...a custom component on application form from a DLL library. Tested on win32 and Linux/Gtk2 with Lazarus 1.7 trunk. try

while ((HTTPGetResult = False) and (RetryAttempt < MaxRetries)) do try

If you are too lazy to setup packages and you do not want to share your projects/packages, then you can set here a gl Please note: "global" refers to codetools, and does not include the settings for the compiler. You have to add the path to

|absolute || and || array || asm || begin || break || case || const | as || class || except || exports || finalization || finally || initialization

* '''gl''': 单元的主要功能包括绘置多边形, applying transformations, setting colors and materials,... Procedures always start with the preposition "gl". ...e extensions. <p>The functionality specific to higher OpenGL versions (1.2 and later) is available in this unit as well. Initializing this functionality i

VCL and LCL support basic docking of controls. For advanced docking behavior, a cus Docking is a basically special case of Drag & Drop action for forms and similar controls. Therefore basic events of controls are similar.

...eicherverluste zu vermeiden sollte Sie jedoch immer wenn möglich einen Try-Finally-Block verwenden, zum Beispiel: try

...:1990 - that didn't introduce any new concepts, but cleared up ambiguities and corrected errors that were in the earlier version. The ISO 7185 standard is * [[And|<syntaxhighlight lang="pascal" inline>and</syntaxhighlight>]]

**[[TPersistent]] - Base class for streaming system and persistent properties. if Assigned(ACollection) {and (ACollection is THairList)} then

...t, browse the components, choose Chart tab and click on TChart icon. Click and draw a rectangle on the window to drop it. ...to drop it. In the Object Inspector, define PointsNumber to 10, XMax to 10 and YMax to 10.

try finally

try Result:=SMTP.MailFrom(MailFrom, Length(MailData)) and

try //... and then commit to make them stick and show them to the SQL that comes

...ложения (если он есть) в plist. См. [[Mac Show Application Title, Version, and Company]] для получения дополнительной инфор try

...us offers access to FPC's multi-threaded environment libraries under Linux and Windows. If you are looking to develop lightning fast native engines speci Define as many of the lists of objects, data structures, and Critical Sections here as well as the list of Threads needed to bring your

Memory for the character sequence is dynamically allocated and freed. ...<syntaxhighlight lang="pascal" inline>length</syntaxhighlight> function}}, and for that matter also <syntaxhighlight lang="pascal" inline>high</syntaxhigh

Custom Attributes currently allow you to decorate type definitions and PREFIXEDATTRIBUTES is set, which is the default in mode Delphi and

try try

{{Command line parameters and environment variables}} The [[System unit|system]] (and [[Object Pascal|<syntaxhighlight lang="bash" inline>objPas</syntaxhighlight

...onality such as drawing polygons, applying transformations, setting colors and materials,... Procedures always start with the preposition "gl". ...e extensions. <p>The functionality specific to higher OpenGL versions (1.2 and later) is available in this unit as well. Initializing this functionality i

...ed to store user settings, error logs, measurement or calculation results, and more. This page explains the basics of file handling. ...umbers which can be formatted in different ways. These files can be opened and edited inside the Lazarus IDE or any other text editor.

When reporting bugs, it is very useful (and often essential) to have a compilable test program that shows the problem. If you don't, please add the DDL (the schema definition) and sample data SQL INSERT statements (or code that performs this).

try except

*'''Drag and dock | 拖放停靠''': 添加了标题，可以拖动以用鼠标停靠控 try

...ist of images, string tables, version info, ... even a Windows XP manifest and forms. This includes data that the programmer can retrieve in his code (acc ...s into the project. In the procedure exampleproc an icon object is created and loaded from the object "image" out of the resource. The file which was comp

|Basic function calls and local variables ...ls, with passing basic parameters (that don't require any memory. I.e. int and floats)

No update query specified and failed to generate one. (No fields for inclusion in where statement found)

Clipboard is a TClipboard variable and the Clipbrd unit should be added in the uses clause in order to use the var ...t]] and [[TFloatSpinEdit]] have ability to select a part of contained text and offer additional functionality for handling clipboard operations on selecte

...dolliset muistivuodot, kannattaa aina käyttää [[Try/fi|try]]- [[Finally/fi|finally]] lohkoa jos mahdollista, niin saadaan jotain tämän näköistä: try

try finally

try finally

...for now), this page shows the steps for building your own FPC, FPC-source and Lazarus packages for Raspberry Pi OS. Example shows steps for Lazarus 2.2.0 ...rce/tags/release_3_2_2</nowiki> fpc</code>, you have to be online for this and the next step to work.

...ext documents and presentations from code can be invaluable in the office, and save a lot of time otherwise spent on repetitive tasks. ...is the creation of applications that can read files in an arbitrary format and output an Excel file, a task that can be done much more efficiently with co

{{Command line parameters and environment variables}} try

...result font sizes scale equally across all LCL widget sets including Cocoa and also the High-DPI system works correctly. ...result, unlike on LCL-win32 where the DPI/PixelsPerInch value is increased and TControl.GetCanvasScaleFactor is 1. On Retina, TControl.GetCanvasScaleFacto

...on client. Different for human driving web browser that is running an SPA and automated client making REST calls, as examples. try

...a evitar posibles pérdidas de memoria, deberíamos utilizar el bloque try - finally siempre que sea posible. Pareciéndose a lo siguiente: try

if Assigned(ACollection) {and (ACollection is THairList)} then // add this line if you want to put this class inside other and also be streamed

...accessible by code. The example program and unit files below (codegui.lpr and mainform.pas) give you a template you can adapt. The most important part is And a unit containing a form:

...ications. If you are interested in a more comprehensive explanation of XML and how it is used, see http://en.wikipedia.org/wiki/XML. ...XML on Free Pascal. These units are called "XMLRead", "XMLWrite" and "DOM" and they are part of the Free Component Library (FCL) from the Free Pascal Comp

you created a circle, and this can result together with some other ...a control that is not centered. For example center a Label1 to a ComboBox and use for the ComboBox the default anchors (Anchors=[akLeft,akTop]).

...accessible by code. The example program and unit files below (codegui.lpr and mainform.pas) give you a template you can adapt. The most important part is And a unit containing a form:

* This source is free software; you can redistribute it and/or modify * Demo to show, how to start a thread and how synchronize with the main

Pas2js 1.5 supports generic types and functions in either the ObjFPC or Delphi like way. Next goal is to test and fix bugs.

...ers are names that allow you to reference stored values, such as variables and constants. Also, every program must be identified (get it?) by an identifie |absolute || and || array || asm || begin || break || case || const

...e several ways to control the behavior of warnings in both the Lazarus IDE and in the source code itself. Some warnings and hints are not very useful in a particular case so you want to hide them fro

if Control.Visible and (Control.HostDockSite = FDockSite) then try

* Code is multiplatform and can be compiled on any OS instantly ...relation integrity and filtering, simulating auto-increment primary fields and similar.

'''Kylix'''&reg; is an [[Object Pascal]] [[Compiler|compiler]] and IDE released by Borland International for the [[Linux]] [[operating system] Kylix 3 is rather hard to install and get working with the latest Linux distros (this issue is only related to th

* Code is multiplatform and can be compiled on any OS instantly ...relation integrity and filtering, simulating auto-increment primary fields and similar.

if Assigned(ACollection) {and (ACollection is THairList)} then try

* This source is free software; you can redistribute it and/or modify * Demo to show, how to start a thread and how synchronize with the main

...te Lazarus application with one form and two buttons. Include Synaser unit and add [[Synapse|Synapse package]] as a new requirement to your project. In On try

<tt>TFPExpressionParser</tt> allows to analyze and calculate [[expression|expressions]] such as <tt>sin(x)*cos(2*x)</tt> for a It belongs to [[FPC]] [[FCL|Free Component Library (FCL)]] and is implemented in the [[Unit|unit]] <tt>fpexprpars.pp</tt>, folder <tt>(fpc

...ations/index.html#//apple_ref/doc/uid/TP40012224 Carbon Core Deprecations] and [https://developer.apple.com/library/archive/documentation/Carbon/Conceptua {{FPC and Carbon}}

...defined in a separate method to help remove clutter, and explain the usage and functionality in smaller chucks of code. try

...d in .rst and .lrt files and then applying the following features it finds and brings up to date any translated .xx.po file. ...also removed. This way, .po files are not cluttered with obsolete entries and translators don't have to translate entries that are not used.

// finally, free the document ...and '''NextSibling''' properties (to iterate forward), or '''LastChild''' and '''PreviousSibling''' (to iterate backward). For random access it is possib

...to file and thus avoid using in-memory buffer. Implemented in version 0.4 and above. ...ns CSV files saved from Calc/Excel can be edited using CsvDocument library and vice versa.

{{Drag and Drop sample}} Drag and Drop is a common operation that makes the interface user friendly: a user c

The Printer4Lazarus package defines a basic printer and provides platform independent printing. The following can thus be used on v try

...nd Linux). This provides a wealth of information detailing system hardware and configuration attributes which can be useful when debugging or simply optim ...man sysctl'. Typing 'sysctl -a | more' will list all the available sysctls and their values.

...]] kirjoitti Kathleen Jensenin kanssa kirjan nimeltä '''Pascal User Manual and Report''', jonka on julkaissut Springer-Verlag. Tästä kirjasta tuli stand * [[And/fi|<syntaxhighlight lang="pascal" inline>and</syntaxhighlight>]]

{{Note|This page has been written a long time ago and may be out of date. Also, most of the concepts described here are not MySQL ...SQL40Connection]]..[[TMySQL56Connection]] (or perhaps even newer versions) and the most versatile of all [[TSQLConnector]] that may load any of the mysql/

try

To use the bindings in your projects (and be able to build them) you have to: ...you can get the [http://cs.nyu.edu/exact/core/gmp/ mingw-dynamic package] and rename it to gmp.dll.

* ''fpspreadsheet'': implements '''TsWorkbook''' and '''TsWorksheet''' and the '''basic file reading/writing methods''' * ''fpstypes'': declares most of the '''data types''' and '''constants''' used throughout the package. '''Note:''' in older versions

try try

...Button]]. All images have the same size as specified by the <tt>Width</tt> and <tt>Height</tt> property of <tt>TImageList</tt>. A component needing an ima == Multiple-resolution TImageList in Lazarus 1.9 and newer ==

* '''封装所选''': 提供一个窗口列表出一些逻辑上可以封装所选文本,如(begin ... end; try ... except; try ... finally; repeat ... until; { ... } 等等).该功能可以将所选代码包含在b ......''': Enclose the currently selected text with a statement such as Try...Finally.

...pport for Objective-C was started way before ARC became highly recommended and was part of the language. ...). All Cocoa Widgetset code cannot doesn't rely on ARC and using reference and dereference manually.

...page are no longer needed because [[Generics]] support in FPC is complete and usable enough.}} * Type safe &ndash; eliminates the annoyance of typecasting and the errors it often causes

try except

...ndom in itself), the regularly occuring namespace proposal etc. The page, and the rebutal was left in as an example, since it demonstrates a few traits c * Failure to grasp basic concept of Pascal parsing and philosophy.

There are some new [[Property|properties]] and [[Method|methods]] for automatic layout of you created a circle, and this can result together with some other

...e server. Instead, you add a library (DLL/.so/.dylib) to your application) and let your application access your Firebird .fdb database file using that lib This is similar to the way programs like Microsoft Access and LibreOffice Base can work.

try try

{ Shows client and server character set/NLS info} try

...s Wirth escribió un libro con Kathleen Jensen, titulado Pascal User Manual and Report publicado por Springer-Verlag. Este libro se convirtió en un están * [[And|<syntaxhighlight lang="pascal" inline>and</syntaxhighlight>]]

* new properties TForm.LCLVersion and TFrame.LCLVersion Every form and frame now saves this property adding version information to the lfm file. T

As the Free Pascal/Lazarus syntax and library is fairly consistent with Delphi's, sites that "translate" to Delph ...acode.org/wiki/Category:Pascal] A huge number of languages, even esoteric, and tasks, make this site special

| [[And/ru|and]] || логический оператор, требующий, чтобы [[Except|except]]<br>

{{Note|The information in this section has been updated as of September 2023 and might be outdated by the time you read it}} ...7.0. Use FPC's '''-il''' command line parameter to list all supported LLVM and Xcode versions. These can be selected using the '''-Clv''' command line par

...case, the design is quite conventional compared to other charting packages and applications. Is it possible to give the chart background a more interestin ...form. Drag the form borders such that the window is about 400 pixels wide and 300 pixels high.

...ages and examples. After the basic steps, we are going to print some text. Finally a hint of some more advanced printing is given. The Printer4Lazarus package defines a basic printer and provides platform independent printing. The following can thus be used on v

First of all, thank you for using Free Pascal and Lazarus, and thank you for your help. ...rce project you are using. So please take some time to read this carefully and think about these tips when reporting bugs.

try try

...ist of images, string tables, version info, ... even a Windows XP manifest and forms. This includes data that the programmer can retrieve in his code (acc ...(windres or GoRC). Therefore that resource compiler needs to be installed and present in the PATH environment variable.

| [[And/fr|and]] || Opérateur booléen à True si les deux opérandes sont True | [[Except/fr|except]] || Partie d'un bloc try - except - end

...cation to determine the status of a system's current network configuration and the reachability of a target host. A remote host is considered reachable wh The SCNetworkReachability programming interface supports a synchronous and an asynchronous model. In the synchronous model, you get the reachability s

MultiLog is a log system that aims at flexibility and low overhead at the same time. As the name suggests, it can be used to log ...does not follow closely any of them, implementing many things differently and, even, having some unique features.

DPI (Dots Per Inch) is the relation between size in pixels and the actual display size. Here dot is an equivalent for pixel in printing te ...connect video output to monitor with different size then sceen resolution and visual size of controls are not automatically changed.

|absolute || and || array || asm || begin || break || case || const | as || class || except || exports || finalization || finally || initialization

...all the matches as an array, the total number of matches, the first match, and the range of the first match. ...ries information about the overall matched range (via its range property), and the range of each individual capture group (via the rangeAtIndex method).

The '''Author''' and '''Title''' properties can be used in expressions The loop will run over all records in the dataset, and all fields in the dataset will be available for

...n use the various classes. All those questions are put one after the other and form a sort of tutorial. I will try to word it in such a way that the text can be used for Lazarus as well as F

...hich has many changes made to it so that it will compile with a modern FPC and to support TLSv1.3.}} * TCP and UDP (combined)

* get data out of the controls and back into the database Using any database and a login form, you can support multiple different database servers/embedded

do try except with raising a exception and doing something with try

FPVectorial offers support to read, modify and write vectorial images. If you have a release version of Lazarus and want the latest version of fpvectorial you can download it by svn from

Result:= (Red(N)<cMax) and (Green(N)<cMax) and (Blue(N)<cMax); try

// Tee tiedostojen luominen, try/except lohkossa käsittellään virheet try

Up to now, we used a fixed database server name, database location, username and password for simplicity. ...ntioned, "real" applications normally let users specify their own username and password.

|absolute || and || array || asm || begin || break || case || const | as || class || except || exports || finalization || finally || initialization

...ore options, like a header providing fields for author, encoding, language and date. Every FPC installation provides the tool '''rstconv''' (windows: rstc ...s open source software packages. These function may save you a lot of work and improve consistency.

== Calculating Perceptual hashes (PHASH) and comparing image similarity == ...C and was not easy to link the program in. The second way is to resize it and make a hash based on whether each pixel was more or less then its next neig

...|| Definiuje instrukcję obsługi wyjątków w części [[Except]] instrukcji [[Try]].

...re data on disk or to a network stream, you have to write code which loads and saves each property. This tutorial describes how to write classes that can be loaded from and saved to streams using RTTI (RunTime Type Information) without the need to

...nąć możliwych wycieków pamięci, zawsze powinieneś używać bloku [[Try]] - [[Finally]] wszędzie, gdzie to możliwe, aby uzyskać coś takiego: try

//Constant cSaveRestore determines the way for saving and restoring of MemDatasets to persistent files cSaveRestore=0; //0=MemDataset native way, 1=saving and restoring from CSV

...atypes and in different contexts: Local Lifetime, Manual Memory Management and Reference Counting. This is the default way on how variables and function parameters are handled. Here the compiler fully takes over the man

...o implement a generally portable TImage like class, without the deep win32 and VCL ties. ...are ''[[doc:fcl/fpimage|fpimage]]'' and ''[[doc:fcl/fpcanvas|fpcanvas]]'' and these are further enhanced by OOP derivation.

...Pi-Anschlusses (GND = Masse) verbunden (s. auch die Beschreibung bei Upton and Halfacree). Damit kann die LED durch die ToggleBox des Programms ein- und a try

This page describes the basic classes and techniques regarding drawing graphics with Lazarus. Other more specific top ...aphics classes are the most traditional way of drawing graphics in the LCL and are also the most important one, while the non-native classes are complemen

try if (FMemo <> nil) and (not Application.Terminated) then

# 通过 [[Lazarus on Raspberry Pi#3. wiringPi procedures and functions|wiringPi 库]]. ...ry Pi#4. rpi_hal-Hardware Abstraction Library (GPIO, I2C und SPI functions and procedures)|rpi_hal]].

try finally

...viour. This should then serve as specification for maintainers of existing and new platforms to ensure fully compatible behaviour (as far as possible cons ...not mentioned, it's supposed to be system.pas for platform specific parts and system.inc for the shared routines.

|absolute || and || array || asm || begin || break || case || const | as || class || except || exports || finalization || finally || initialization

|absolute || and || array || asm || begin || break || case || const | as || class || except || exports || finalization || finally || initialization

...ut you need a docking manager to add splitters and grab zones, and to save and restore layouts. ...azarus IDE windows dockable. It is easy to use, and provides many features and options not available in earlier docking packages.

...one translated .po file for each language (there are free graphical tools) and use the functions of the LCL ''translations'' unit to load the right one at ...r Linux, BSD, Mac OS X there are several locales defining things like time and date format or the thousand separator. In order to initialize the RTL you n

...refered to [[Installing_Lazarus_on_Linux]] - that page is kept up to date and contains everything you need. (Please don't update this page unless you are ...for now), this page shows the steps for building your own FPC, FPC-source and Lazarus packages for Raspbian. Example shows steps for Lazarus 2.0.6 which

|absolute || and || array || asm || begin || break || case || const | as || class || except || exports || finalization || finally || initialization

# alternatively (and probably more "official") use -FCi586-mingw32msvc-windres in your calls to try

...n Geometry library. It is fast and very powerful with anti-aliased drawing and subpixel accuracy. You can think of AggPas as of a rendering engine that pr ...TRasterImage descendent (TBitmap is the most commonly used). TFont, TBrush and TPen describe how the drawing of various operations will be executed in the

...be opened in a variety of products including Microsoft Office, OpenOffice and LibreOffice. ...sting architecture already had the concept of a Document containing Pages, and it's architecture was easily extendable. Document support was added beside

...ll, it allows to calculate the function values, depending on zooming level and chart size, at sufficiently narrow intervals, such that the series curve is ...the chart, the series editor opens (''"Edit series"''). Click on ''"Add"'' and select ''"Function series"'' from the drop-down list. The chart will displa

...rus/FPC IDE to make updating your application from an online source easier and smarter. ...Forge or GitHub version control ensuring a trouble-free experience for you and your users.

...hods and concentrates on current releases. Linux users should think of FPC and Lazarus as being two distinct but related processes, FPC does not change mu ...such as '''Synaptic''', '''Ubuntu Software Centre''' or '''YaST2'''. Maybe try double clicking on a downloaded package in your file manager.''

try finally

; Key Compiler and value FreePascal

|[[Executing External Programs#MS Windows : CreateProcess, ShellExecute and WinExec|ShellExecute]] |[[Executing External Programs#Unix fpsystem, fpexecve and shell |fpsystem, fpexecve]]

...e best drawing speed it can be useful to use specialized bitmap structures and routines. You can also use existing [[Graphics libraries]]. * Facility for automatic image updating and redrawing (notifications and mass operation optimization)

// Example that uses elevated rundll to open the Control Panel to Programs and features Copyright (c) 2004-2011 by Marc Weustink and contributors

==Parallel and Serial Comparison== ...d. With a serial protocol however, only one bit at a time can be accessed and the pieces need to be "glued" together to understand the data.

* the POSIX / Interix subsystem (included as SUA in Windows Vista/7 Ultimate and Enterprise) ...NT system don't use the WinAPI, but the API provided by '''ntoskrnl.exe''' and '''hal.dll'''.

Simply drop a [[CalLite|TCalendarLite]] component on the form and get a functional month-calendar. ...: the color of an optional separating line between the top navigation pane and the calendar's day area (default: clSilver <span style="background: #C0C0C0

; Key Compiler and value FreePascal // ... although this really should be wrapped in a try..finally block

Try Finally

...ilities for creating libraries with Lazarus/FPC and using them in projects and packages. ...default. That means it tells the linker to put all .o files of the project and all packages into one big executable.

There are many property types in Lazarus, and when writing a descendent of TComponent it is not always straightforward ho The code below is a working component that could be packaged and compiled in the IDE, but its purpose is to serve as a source of copy/paste

...flavors is commonly used. In this case, perhaps only Linux, Solaris, *BSD and other Unixes make sense as your target platforms, although you may want to ...a NTFS partition, mounted in Windows. Using custom functions for checking and preventing creation of several files with the same names on NTFS should be

|absolute || and || array || asm || begin || break || case || const | as || class || except || exports || finalization || finally || initialization

...el valor textual de un nodo (no olvides añadir las unidades '''XMLRead''' and '''DOM''' en la sección '''uses'''): try

It works reliably on Windows, MacOS and Linux (and similar) with all desktops except the Gnome Desktop. It can be made work with Gnome but perhaps that's despit ...ign an icon to it, assign a popup menu (with at least one menu item) to it and call its Show method

...must only know how to read/write its properties from/to a report streamer, and how to copy properties to another instance. and the propertie values can differ from the values set during design.

{{Command line parameters and environment variables}} try

Synapse provides an easy to use serial port and synchronous TCP/IP library. Synapse offers [[Hardware_Access#Synaser|serial]] port and TCP/IP connectivity. It differs from other libraries that you only require

...interface is based on Qt 5 (Qt 5.6.2 is tested). For documentation, fixes and download, go to [http://qt-project.org/ Qt Project] (Installers at [https:/ ...eases have issues due to their age. Ubuntu 16.04 has QT5.5 that is too old and 18.04 ships a problematic version of ''libQt5Pas'' that needs to be replace

...s in your unit tests first, then write your main code, then run your tests and improve the code until all tests pass. ...s, you can also collect the results systematically (using the XML output), and use that to compare versions for e.g. regression errors (i.e. you run your

...L Data access components (MyDAC) as a Lazarus component to connect Lazarus and MySQL. [https://www.devart.com/mydac/download.html Lazarus components MyDAC * It is very widely used and available

; Key Compiler and value FreePascal // ...bien que cela devrait être vraiment enveloppé dans un bloc try .. finally

MARCH: AddHoliday(19, Holidays);// Birthday of novelist and playwright if IsHoliday(aDay,Flagdays) and not (csOtherMonth in AState) then begin

// finally, free the document // using FirstChild and NextSibling properties

try finally

After inserting data, Access 2000 and higher supports getting the just-inserted autonumber primary key using this ...ed support for MS Accesss. It includes an ODBC driver which might be used. Try installing packages like mdbtools mdbtools-dev mdbtools-gmdb

...s have the need to send data to a PC running a program for data aquisition and visualisation. Lazarus is highly suitable for developing such programs, i.e ...new world of smart physical sensors and actuators for monitoring, control and data acquisition.

...and. With a serial protocol, however, you can only know one bit at a time, and you need to glue the pieces together to understand the data. ...ndows NT is detected, it decompresses HWInterface.sys kernel device driver and installs it. If Windows 9x is detected, it simply uses assembler opcodes to

...base environment with sample tables and data to use in SQLdb Tutorial 1, 2 and 3. ...to get up and running quickly, I'd suggest installing the Firebird server and example database as described below.

...з интерфейс IDE. Далее рассмотрены примеры программы и модуля (codegui.lpr and mainform.pas) которые вы можете использовать в try

...ily targeted at newbies. If somebody is looking for basics about databases and SQL, he should read the corresponding books. ...enced developers will hopefully be able to glance through the instructions and quickly understand what's going on.

...ton. Select the IDE Integration tab. In Package Type, make sure Designtime and Runtime is selected. * Click the Install button. Lazarus will rebuild and restart automatically.

...en source [[Pascal]] to [[JavaScript]] transpiler. It parses Object Pascal and emits JavaScript. The JavaScript is currently of level ECMAScript 5 and should run in any browser or in Node.js (target "nodejs").

Here are different ways available in RTL, FCL and LCL libraries on how to execute an external command/process/program. |[[Executing External Programs#MS Windows : CreateProcess, ShellExecute and WinExec|ShellExecute]]

try try

...fers to Lazarus as a whole, or makes a distinction between "the libraries" and "the environment" (IDE).<br> However "the libraries" in this context should ...et to linking of shared objects; the FPC modification goes one step beyond and also allows static linking.

* A '''Save dialog''' file will appear. Chose a folder and a filename and press save. If the IDE prompts for using lowercase filenames press 'yes'. * Restart Lazarus and see your new component in the component palette. Congratulations: You have

...彈出一個選單，裡面有幾個選項可以讓你關閉選取文字裡，符合條件的敘述句 (begin ... end; try ... except; try ... finally; repeat ... until; { ... } 等等)。 ...ugger''': Restores the debugger to its original state, so that breakpoints and values of variables etc are forgotten.

Im [[Lazarus Database Tutorial#Lazarus and MySQL|Datenbank Tutorial]] sahen wir einen ersten Versuch, eine Verbindung try ... finally

{{Command line parameters and environment variables}} try

...r multiple other purposes that are as different as media servers, robotics and control engineering. ...[Portal:Linux|Linux]] distributions, as well as [[Portal:Android|Android]] and [[Portal:FreeBSD|FreeBSD]].

|Ein Handle auf eine Dateiliste, im Zusammenhang mit Drag-And-Drop. try

...dows, Ubuntu and macOS, with widgetsets win32, gtk1, gtk2, Carbon (32 bit) and Cocoa (64 bit). ...llocated. This format consists of 4 bytes for each pixel (blue, green, red and alpha in that order on Windows).

# Write a package, install it and register your plugin(s) in the 'Register' procedure of a unit. # Extend the Lazarus code, and send your svn diff to the Lazarus mailing list.

...ace used by Unix and Unix-like operating systems to access system hardware and kernel configuration attributes. ...A framework that implements non-kernel access to I/O Kit objects (drivers and nubs) through the device-interface mechanism.

if IsHoliday(aDay,Flagdays) and not (csOtherMonth in AState) then begin try

...se by default). Within each pass, the value of Terminated must be checked, and if it is true then the loop should be exited as quickly as is appropriate, ...will be paused, the code of MyMethod will be called from the main thread, and then the thread execution will be resumed.

...ific options / Win32 GUI application''. No console is shown, '''writeln''' and '''readln''' are not possible, you will get '''File not open''' errors. Omi ===Importing and using a COM library===

Try Finally

try finally

This is a tutorial on writing cross-platform applications with Lazarus and Free Pascal. It will cover the necessary precautions to aid in creating a c ...wer this question, you should first determine who your potential users are and how your program will be used. This question depends on where you are deplo

There are ODBC implementations for various platforms and there are drivers for most Database Management Systems. FreePascal ships with ODBC headers; they are in the <code>odbcsql</code> and <code>odbcsqldyn</code> units.

This is a compiler-only port. That means that except for the system unit and a unit that imports the JDK classes, no other standard RTL or other units a ...e JVM-targeted compiler. That is however not the goal of this initial port and bug reports about missing unit-level functionality are not useful at this p

* A '''Save''' file dialog will appear. Chose a folder and a file name and press save. If the IDE prompts for using lowercase filenames press 'yes'. * Choose ''customcontrol1.pas'' as '''Unit File Name''' and ''CustomControl1'' as '''Unit Name'''.

...ty (or via an OnPaint event). Such controls include [[TForm]], [[TPanel]] and [[TPaintBox]]. Let's use TForm as an example to demonstrate how to paint on ...Never paint in an OnClick handler, because this painting is not persistent and will be erased whenever the operating system requests a repaint. Always pai

...lication" as in the image below, which will create a main CGI project file and a fpweb web module. The TFPWebModule allows you to manipulate properties and events using the Object Inspector.

...pc wasm and pas2js browser to call JS functions, get and set JS properties and set callbacks. A JOB program has a webassembly program (fpc wasi) and a browser (pas2js) program.

FreePascal ships with ODBC headers; they are in the <code>odbcsql</code> and <code>odbcsqldyn</code> units. * executing queries and retrieving result sets

.... Select the IDE Integration tab. At the Package Type make sure Designtime and Runtime is selected. * Click the Install button, Lazarus will rebuild and restart automatically.

...ods available to macSO developers: using code to generate speech from text and using utility tools provided with the operating system. ...macOS 10.0+ (Cheetah) although some of its functions have been deprecated and some new ones were introduced with macOS 10.5 (Leopard).

...te da TRasterImage (TBitmap è quello usato più comunemente). TFont, TBrush and TPen descrivono come le varie operazioni di disegno saranno eseguite nel Ca try

...Faq|Lazarus]] IDE Tools''' is a library of [[Free Pascal]] source parsing and editing tools, called the "codetools". ...nctions can save a lot of time and duplicated work. They are customizable, and every feature is available via shortcuts (see Editor Options).

{{Drag and Drop sample}} == Drag and Drop ==

* [[LazRGBGraphics]] - A package for fast in memory image processing and pixel manipulations (like scan line). * [[fpvectorial]] - Offers support to read, modify and write vectorial images.

...he native classes are mostly located in the unit '''Graphics''' of the LCL and are the well known classes: TBitmap, TCanvas, TFont, TBrush, TPen, TPortabl ...TRasterImage descendent (TBitmap is the most commonly used). TFont, TBrush and TPen describe how the drawing of various operations will be executed in the

...tantly, it really does work pretty much the same way across Linux, Windows and Mac. Possibly other platforms as well but I cannot speak authoritatively th ...ent set of methods so that person is urged to document what they find too. And correct any errors they find here.

As of 0.9.25, Lazarus has full Unicode support in all platforms except Gtk 1. This page covers Unicode in Lazarus up to version 1.4 which still us ...ponsibility of the developer to know what is the encoding of their strings and do the proper conversion between libraries which expect different encodings

try finally

...rial features a small but useful program to show some of the possibilities and techniques to create an application with Lazarus. This part is more compreh ...ve'', ''ButtonFont'' and ''ButtonNew'' are used in this tutorial, the memo and the dialogs keep their original names. Adjust the captions of the buttons t

// register IDE shortcut and menu item try

...e documentation at a level that is neither too simple nor too complicated, and fully cover the areas that people want to know about.}} ...CL, and the "interface". The LCL is the part that is platform independent, and it resides in the lazarus/lcl/ directory. This directory contains mainly cl

...utasíthatod a Windows-t arra hogy ne használja a hardvered portjait "Plug And Play" eszközökhöz: try

The tree is the basis of the compiler. When the compiler parses statements and blocks of code, they are converted to a tree representation. This tree repr | andn || Represents the and operator

then treat unresolved references as mere warnings, and will produce The next easiest way is to the RPMs for FreePascal and Lazarus from the SourceForge repository.

* Select the package you want to uninstall and click Uninstall selection. ...he IDE menu click Tools > Build Lazarus. Lazarus will rebuild all packages and restart. You should now be able to uninstall problematic packages.

=== Alternatives and known problems === ...e. ''Note: investigate whether this applies to Tablelevel 7 (Visual DBase) and 25/30 (Foxpro/Visual Foxpro)''

...started tutorial]]. Of course, you must have some experience with Lazarus and FPC. ...ct we had created a chart of some mathematical functions for x between -10 and 10. The functions were drawn by means of <code>TLineSeries</code> storing t

try finally

...e body without definition (DoSomething) and so it will jump to DoSomething and position the cursor right on 'DoSomething'. Then you can simply rename it t If you open an include file for the first time and try method jumping or find declaration you will get an error. The IDE does not

# Acceso a través de [[Lazarus on Raspberry Pi# wiringPi procedures and functions|wiringPi library]]. ...erry Pi# rpi_hal-Hardware Abstraction Library (GPIO, I2C und SPI functions and procedures)|rpi_hal]].

...plain how to write and debug a multi-threaded application with Free Pascal and Lazarus. A multi-threaded application is one that creates two or more thre ...processing a big job... and while processing, the screen stops responding, and gives the user the impression that the application is frozen, a poor or mis

（上面的代码不是很完善，因为忽略了 'try...finally' 块；旨在演示显示数据，因此'美化'工作被忽略。） ...is not necessary. When TSQLQuery is opened, the SQL statement is executed and if no transaction is available then a transaction is automatically started.

This writeup is for people who are interested in Lazarus and already know Delphi. It describes the differences between the two. ...brary (VCL). Most Lazarus units, classes and properties have the same name and functionality as their equivalents in Delphi. This makes porting Delphi app

...dox'''||[[TParadoxDataSet | TParadoxDataSet]]||否||否|| up to Table Level 7 (and up ??) || 所有 ...e database applications using these units, but it is usually far more work and bug-sensitive than using the DB-unit Lazarus components.

==AutoSize and resizing the control== ...個 control 的建議寬度來計算它自己的建議寬度，參閱 [[Autosize_/_Layout#Align_and_AutoSize|Align and AutoSize]]. 如果沒有可用的建議寬度，那麼就使用最後設置

if (d=28) and (e=6) and (a>10) then begin if (AMonth = 11) and (ADay = 11) and not (csOtherMonth in AState) then begin

try result:=SMTP.MailFrom(MailFrom, Length(MailData)) and

...alter a control's size and position so it adapts to changes in font, theme and text or other content. If you want to run your program on several platforms ...ustable by the programmer. You can move the control around with the mouse, and resize it freely.

...ng environment to create standalone [[Graphical_User_Interface|graphical]] and [[Command-line_interface|console applications]]. ...m creation environment along with a package manager, [[Debugger|debugger]] and complete GUI integration with the Free Pascal [[Compiler|compiler]].

...lar to Delphi's VCL. Most units, classes and properties have the same name and functionality. This makes porting easy. But Lazarus is *not* an 'open sourc ...tly runs on Linux (i386, x86_64), FreeBSD (i386), Mac OS X (powerpc, i386) and Windows (i386, x86_64).

...ode with Lazarus running on another operating system (or a cross compiler) and get a program that runs on that operating system. For more details see [[Overview of Free Pascal and Lazarus]]

This page is an introduction to the topic '[[Lazarus]] and '''databases''''. The following table provides an overview of supported dat ...://www.advantagedatabase.com/ '''Advantage''']||TAdsDataSet||Yes||No||10.1 and greater|| i386: Linux, Win32

while (not Terminated) and ([他のループ終了条件]) do while (not Terminated) and ([他のループ終了条件]) do

|[[Executing External Programs#MS Windows : CreateProcess, ShellExecute and WinExec|ShellExecute]] |[[Executing External Programs#Unix fpsystem, fpexecve and shell |fpsystem, fpexecve]]

* The binary is too big and doesn't fit the available RAM ...olla/Symbol MC9000 and MC1000 barcode scanners running both Windows CE 4.2 and 5.

Lazarus et FPC facilitent l'écriture de services Windows. See [[Daemons and Services/fr|Daemons et Services]]. try

...ns can be selected either by placing the mouse cursor over the menu option and clicking the left mouse button, or by typing {{keypress|Alt|F}} on the keyb * '''New Form''': Creates a new Form: both the visual on-screen window and the associated Pascal source file.

try try

[[FPSpreadsheet]] is a powerful package for reading and writing spreadsheet files. The main intention is to provide a platform whic .... Of course, you should not have a basic understanding of Lazarus and FPC, and you must know how to work with the object inspector of Lazarus.

try result:=SMTP.MailFrom(MailFrom, Length(MailData)) and

...toujours'' être intégré dans une construction try ... except et/ou try ... finally. Cela garantit que les erreurs de bases de données sont traitées et que l try

// register IDE shortcut and menu item try

Collection of generic algorithms and data structures for Free Pascal. * priority queue with key update and melding based on pairing heap (unit lgPriorityQueue)

try except

if (d=28) and (e=6) and (a>10) then begin if (AMonth = 11) and (ADay = 11) and not (csOtherMonth in AState) then begin

// Additional fields and methods can be added here try

Try Finally

try finally

// the units with TXMLResultsWriter and TDigestResultsWriter try

...meant to ease web services <b>consumption and creation</b> by FPC, Lazarus and Delphi users. ...ib_edtr” a WSDL based type library editor, a command line tool “ws_helper” and a Lazarus integration package which contains some wizards,

...Castle Game Engine]] - Un moteur libre et multiplateforme pour des jeux 3D and 2D sous FPC/Lazarus ([http://castle-engine.sourceforge.net/engine.php site try

(begin ... end; try ... except; try ... finally; repeat ... until; { ... } etc). ...ure bodies. On event assignments (OnClick:=) it adds the method definition and the method body. See [[Lazarus IDE Tools]].

try finally

...' button again, go to the '''Add Files''' tab, browse to the ''.lrs'' file and click OK (See Step 3 about creating this icon file). ...go to the '''New Requirement''' tab. In the Package name select '''LCL''' and click OK.

try finally

try

...meant to ease web services <b>consumption and creation</b> by FPC, Lazarus and Delphi users. Try

...ede imprimir, caso de que no se realiza una acción, caso de que si realiza finally } finally

if Node.HasAttributes and (Node.Attributes.Length>0) then Try

# ScriptAliases are essentially the same as Aliases, except that # documents in the target directory are treated as applications and

...e table dans un fichier .mdb en utilisant TODBCConnection, TSQLTransaction and TSQLQuery (le fichier .mdb existe dans le même dossier que le programme ex //try alternate driver

...körbezárni a kijelölt kódrészletet (begin ... end; try ... except; try ... finally; repeat ... until; { ... } stb.). ...and want to stop the build, or the system seems to be taking far too long and something is obviously wrong.

try finally

...uisition/multifunction/ DAQ cards], which are generally used for acquiring and generating signals. ...usually have a few analog inputs/outputs, digital inputs/outputs, counters and a frequency generator with hardware/software timing. Exact features (type,

"Reversed Class Completion" is part of the '''Code Completion''' and adds a private method declaration for the current method body. It is invoke The method DoSomething is not yet declared in TForm1. Press Ctrl+Shift+C and the IDE will add "procedure DoSomething(Sender: TObject);" to the private m

try finally

LCL Port: [[User:Christian|Christian Ulrich]] and [[User:wp|Werner Pamler]] ...- Drag and drop, mORMot datastore, new fields, holiday support, designtime and runtime packages (version 1.06)

...tten completely in FPC, runs on many platforms like Windows, Mac and Linux and more. It is built modular consisting of the following parts: * file resolver - handling search paths, finding used units and include files

try finally

if (i > 0) and ((i mod 2) = 0) then try

| andn || Répresente l'opérateur <tt>and</tt> | tryexceptn || Représente une instruction <tt>try..except</tt>

try finally

...ns. Developers can leverage the power of OpenGL across all popular desktop and workstation platforms, ensuring wide application deployment. ...able API so you can write a single OpenGL program that works across all PC and workstation OS platforms.

...rquelle in Windows bezüglich parallel verwendeter Hardware, die kein "Plug and Play" unterstützt kann darin liegen, dass Windows den von der Hardware ben ...0, 8, 1) Zugriff ermöglichen für das Programm auf alle Ports zwischen $220 and $227 (einschließlich).

...obacz także:''' [[Small Virtual Machines|Małe maszyny wirtualne]] i [[Qemu and other emulators|Qemu i inne emulatory]]. try

This text will try to show the user some aspects of the grids components in Lazarus. It is als This text will therefore try to reach the following objectives:

Try Finally

...ualisation systems such as VMware, Microsoft Hyper-V or Oracle VirtualBox, and only considers Linux KVM as a foundation technology for Qemu. ...t operating system and tools, the second is connected to a SCSI controller and contains 6x discs each of which is used for a different guest system.

// this method is executed by the mainthread and can therefore access all GUI elements. while (not Terminated) and ([any condition required]) do

=== Internal component registration and TLCLComponent.NewInstance was optimized === LCL components are registered and mapped to a widgetset by TLCLComponent.NewInstance.

try finally

// this method is executed by the mainthread and can therefore access all GUI elements. while (not Terminated) and ([any condition required]) do

{ Leave Hostname and DatabaseName properties empty } try

...various widgetsets which can be used with Lazarus. Each has its strengths and weaknesses. |Native macOS look and feel || Only relevant to macOS

try try

while (not Terminated) and ([any condition required]) do while (not Terminated) and ([any condition required]) do

...Einschließen des markierten Textes (begin ... end; try ... except; try ... finally; repeat ... until; { ... } etc). ...ry configurable from the Main Menu by selecting Tools -> Options -> Editor and then selecting one of several tabs in the pop-up dialog box.

// create and destroy ...здесь: [[Developing with Graphics#Working with TLazIntfImage.2C TRawImage and TLazCanvas]]

# ScriptAliases are essentially the same as Aliases, except that # documents in the target directory are treated as applications and

...k to the db though they will be in memory and can be viewed using btnFirst and btnNext. try

try finally

try finally

// If we have both a ' and a " in our string, we're in trouble. |AND||Retourne True si ses deux arguments booléens sont vrais

try finally

* Fixed precedence multiply and power: ''100 * 9 ** 0.5'' results in ''100 * (9 ** 0.5)'' ...d version of units, e.g. units in packages/rtl are now in packages/rtl/src and the namespaced versions are in packages/rtl/namespaced

...Windows: CreateProcess, ShellExecute and WinExec + Unix fpsystem, fpexecve and shell + macOS + Run detached program und auch danach noch einiges mehr)}} try

...hamp Mémo et quelques boutons sur la fiche. Vous devez ajoutez mysqlXXconn and sqldb dans la clause Uses. try

(Dieser Code ist natürlich noch nicht komplett. So fehlen z.B. 'try...finally' Blöcke. Wie auch immer der obige Code zeigt den reinen Datenbankcode.) Be No update query specified and failed to generate one. (No fields for inclusion in where statement found)

...dessus n'est bien sûr pas tout à fait terminé. Il manque des blocs 'try...finally'. Il s'agit de montrer le code d'accès à la base de données, la finition No update query specified and failed to generate one. (No fields for inclusion in where statement found)

...of a cell. These records are collected by an internal list of the workbook and are defined like this: ...re drawn according to the <tt>BorderStyles</tt> which define the linestyle and color of the border.

(''Comments and Code Completion'') ...brazí sa dialóg, kde si môžete vybrať či má výber uzatvorený medzi '''try..finally''' ale do mnoho iných blokov.

...eforge.net/p/lazarus-ccr/svn/HEAD/tree/components/spktoolbar/ Lazarus Code and Components Repository], pero ten en cuenta que este componente no provee to ==== Adding buttons for "Bold", "Italic", and "Underline" ====

The fpSpreadsheet library offers a convenient way to generate and read spreadsheet documents in various formats. The library is written in a ...rows''' and '''columns'''. Each cell has a unique address given by the row and column index.

...logické zakončenie vybratého textu (begin ... end; try ... except; try ... finally; repeat ... until; { ... } atď). ...ise execution up to the statement marked, then skips the marked statement, and continues execution at normal speed. Useful in trying to isolate a statemen

while (not Terminated) and ([otra_condición_requerida]) do while (not Terminated) and ([otra_condición_requerida]) do

(De code hierboven is natuurlijk niet helemaal netjes, zo missen er 'try..finally' blokken, maar daar gaat het hier niet om, dus heb ik ze weggelaten.) No update query specified and failed to generate one. (No fields for inclusion in where statement found)

...енного текста в программные скобки (begin ... end; try ... except; try ... finally; repeat ... until; { ... } и т. д.). ...first column. Remember there should be no spaces on the line before //TODO and ToDo comments added after the last save will not be shown!

...erior, por supuesto, no está terminado, se echa de menos bloques ''try ... finally''. Sin embargo, el código anterior tiene la intención de mostrar el códi <syntaxhighlight lang=pascal> No update query specified and failed to generate one. (No fields for inclusion in where statement found)<

...m logjik të tekstit të përzgjedhur (begin ... end; try ... except; try ... finally; repeat ... until; { ... } etc). ...first column. Remember there should be no spaces on the line before //TODO and ToDo comments added after the last save will not be shown!

...was created. For other fixes made since the previous release (1.8) see SVN and [[Lazarus_1.8_fixes_branch|Lazarus 1.8 fixes branch]] ==== Submitted by developer / committer and waiting for testing (do not commit yet) ====

...ön. Avautuu valintaikkuna, jossa voidaan valita, haluaako valinnan '''try..finally''' tai monista muista tavoista . Comments in front of a declaration, without empty line and not starting with the ''<'' sign:

while (not Terminated) and ([inne wymagane warunki]) do while (not Terminated) and ([inne wymagane warunki]) do

...позволяет LCL обрабатывать все ожидающие сообщений и возвращения (messages and returns). while (not Terminated) and ([любое необходимое условие]) do

...Object Pascal language using the Lazarus IDE, with a focus on performance and a broad featureset, which includes: * Interface- and syntax-themes

Worksheets and workbooks fire a series of events such as OnChangeCell, OnChangeFont, etc. ...(A1+B1,0)"</tt>. They are used internally in the files of Open/LibreOffice and Excel ''.xlsx''.

*'''akLeft and akRight''': '''Left''' элемента управления фиксиро

...окно, в котором вы можете выбрать, следует ли включить выделение в '''try..finally''' или многие другие общие блоки. *Circular unit reference between $1 and $2 [циркулярная ссылка модуля между $1 и $2]:

...s an additional (boolean) parameter <tt>ALocalized</tt> to use the decimal and list separators of the workbook's <tt>FormatSettings</tt> for creation of t

...ю версию '''playsound component''' от Gordon Bamber в ''Lazarus components and code repository'' (https://sourceforge.net/p/lazarus-ccr/svn/HEAD/tree/comp try

...nsert a tcustomform descendant into another widget at designtime. Does not try to load resources in "create". are placed and colored ) is presented by the "container" property

The worksheet, finally, gives access to the cells. Une feuille de calcul nouvellement créée, com ===== How to add and read data to/from a cell =====

...eforge.net/p/lazarus-ccr/svn/HEAD/tree/components/spktoolbar/ Lazarus Code and Components Repository], mutta ole tietoinen siitä, että tämä ei vielä try

====Saving and loading the contenst of a TValueListEditor==== ...(e.g. the Key/Value pairs, not the layout) you can use Strings.SaveToFile and StringsLoadFromFile.<br>

...nd LoadFromFile you get the additional benefits of also being able to save and load the layout, like with other grids.<br> ...ve information about wether or not the TValueListEditor uses ColumnTitles, and if so, it saves them.