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Lazarus Tutorial/zh TW: what changed

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11*這是篇 Lazarus 教學的起頭，各位可自由地改進他。*
22
33## 概述
44
55Lazarus 是一個使用 Pascal 編譯器的自由開放原始碼開發工具。Free Pascal 本身也是自由開放軟體。Lazarus IDE ([擷圖](http://lazarus-ccr.sourceforge.net/kbdata/lazide.jpg)) 提供一穩定，且專注於強調豐富的程式寫作環境，並用來開發單機的圖形與主控台應用程式。Lazarus 目前可以在 Linux，Mac OS X 與 Win32 下執行。且提供可自訂的原始碼編輯器，並透過套件管理，除錯器與完整的圖形使用介面整合的編譯器做成視覺化的表格創建環境。
66
77## 我們開始吧
88
99(感謝 User:Kirkpatc)
1010
1111取得並安裝 ([[Installing Lazarus]]) Lazarus，同時安裝所有所需的 Free Pascal 編譯器後執行 Lazarus。
1212
1313註：在 Linux Ubuntu 下，在主控台啟動 Lazarus 的指令是 "startlazarus"。如果你是從 Debian 的套件來安裝，你應該會在開始選單裡的應用程式/程式寫作 (Application/Programming) 下找到程式捷徑來啟動。 (己知問題: 在 Debian 或 Ubuntu 裡的主要執行檔與套件已經改名成 "lazarus-ide"，因為已經有個 "tct" 的工具套件被取名叫 "lazarus"。)
1414
1515### 你的第一個 Lazarus 程式！
1616
1717從主選單裡，選擇〔專案〕 - 〔新增專案－應用程式〕 (Project - New Project-Application)。 幾個視窗會出現在你的桌面上：上方的主選單，左方的物件檢視器，Lazarus 原始碼編輯器佔桌面的一大半部份，並有一個已經備妥的 Form1 視窗於原始碼編輯器重疊著出現。 在上方的選單視窗，選單列的下方，有一排標籤頁。如果 '標準 (Standard)' 籤頁沒有被選取，請用滑鼠點選他。然後找到〔按鈕〕 (Button) 的圖示 (一個裡面寫著 'OK' 的四方形) 後用滑鼠按一下，游標再移到 Form1 的視窗，大概移到中間偏左的地點再按一下滑鼠鍵。一個立體的四方形，標著 'Button1' 的按鈕物件就會出現。再按一次標準籤頁裡的鈕按圖示，然後移到 Form1 中間偏右的地方再按一次，就會出現一個標著 'Button2' 的按鈕出現。
1818
1919現在點一下 Button1 來選取它。物件檢視器會顯示出該 Button1 物件的所有內容，靠上的有一項名為 '標題 (Caption)'　的內容，裡面顯示的值是 'Button1'。點一下那個方格，將 'Button1' 改成 '按我'。如果你再按一下 ENTER 或點一下其它的方格，你就會見到原來第一個按鈕裡面標的字就會變成 '按我'。現在點選物作視察器裡的〔事件〕 (Events) 籤頁，裡面會列出所有與這個按鈕有關的事件項目。像是 OnClick，OnEnter，OnExit 等等。再選取 OnClick 右邊的方格，方格會出現三個小點的省略符號。當你再按取該省略符號，會你自動被帶進入原始碼編輯裡，且游標被定在你該撰寫讓事件原始碼的開始處：
2020
21-` procedure TForm1.Button1Click(Sender: TObject);`\
22-` begin`\
23-`   {現在輸入:}    Button1.caption := '再按一次';`\
24-`   {程序於此完結}`\
25-` end;`
21+``` pascal
22+ procedure TForm1.Button1Click(Sender: TObject);
23+ begin
24+ {現在輸入:} Button1.caption := '再按一次';
25+ {程序於此完結}
26+ end;
27+```
2628
2729按一下 `F12` 從原始碼編輯器回到 Form1 的視窗。
2830
2931現在接著編輯 Button2 的〔內容〕：按一下 Button2 使物件檢視器裡顯示出它的內容，變更他的〔標題〕成 '離開'。然後接著再選 OnClick 事件，再點省略符號，這時你又回到原始碼編輯器，從另一段程序開始寫作：
3032
31-` procedure TForm1.Button2Click(Sender: TObject);`\
32-` begin`\
33-`   {現在輸入:}   Close;`\
34-`   {程序於此完結}`\
35-` end;`
33+``` pascal
34+ procedure TForm1.Button2Click(Sender: TObject);
35+ begin
36+ {現在輸入:} Close;
37+ {程序於此完結}
38+ end;
39+```
3640
3741現在再按 `F12` 來看看你的 Form1 視窗。現在該是儲存你的工作的時候了 (而且應該時常)！點選專案 \> 另存專案 \> 你取的檔名.pas (Project \> Save Project As \> your_selected_file_name.pas)。然後程式會再要求你儲存你的專案資訊，副案名為 .lpi。選一個不同的檔名，如果兩個取了同樣的檔名，你在編譯的時候會遇上 "重覆的識別子" 的錯誤 (請見此教學最後一章節 "Lazarus 檔案")。 你現在已經準備好可以開始編譯了。最簡單的方法就是在上方的主選單裡選 '執行 (Run)' 子選單，然後再按 '執行'。或是最直接地按 F9。程式會進行第一次的編譯並直接執行你的程式。
3842
3943有幾個文字視窗會在你編譯的時候出現，顯示著你編譯時的所出現的訊息。但直到最後你的 Form1 視窗會重新出現，而且不帶有格子和標點。這就是你的應用程式的主畫面，並正等待你去按按鈕來與它互動。
4044
4145試著去點標著 '按我' 的按鈕。你會注意到它變成了 '再按一次'，但如果你再按一次，他還是一樣顯示 '再按一次'！
4246
4347現在在按標著 '離開' 的按鈕，視窗會關閉，程式也隨之結束。然後又回到那個有格子與標點的 Form1 視窗，等待你再進一步的修改它。
4448
4549### 改進你的程式
4650
4751再一次開啟你剛儲存的專案。 在 Form1 視窗下點選 '按我' 按鈕 (Button1)。 再選物件檢視器裡的〔事件〕籤頁，點選方格右邊的省略符號，回到原始碼編輯器的相對地方。
4852
4953如下編輯你的程式碼:
5054
51-` procedure TForm1.Button1Click(Sender: TObject);`\
52-`{使用一個標記物，設定它是１或是零}`\
53-` begin`\
54-`   if Button1.tag = 0 then`\
55-`   begin`\
56-`     Button1.caption := '再按一次';`\
57-`     Button1.tag := 1`\
58-`   end else`\
59-`   begin`\
60-`     Button1.caption := '按我';`\
61-`     Button1.tag := 0`\
62-`   end`\
63-` end;`
55+``` pascal
56+ procedure TForm1.Button1Click(Sender: TObject);
57+{使用一個標記物，設定它是１或是零}
58+ begin
59+ if Button1.tag = 0 then
60+ begin
61+ Button1.caption := '再按一次';
62+ Button1.tag := 1
63+ end else
64+ begin
65+ Button1.caption := '按我';
66+ Button1.tag := 0
67+ end
68+ end;
69+```
6470
6571儲存你的工作，再重新編譯一次並執行。現在你左邊的按鈕就會交替地顯示訊息了。
6672
6773接下來就完全看你自己了！
6874
6975如果你偏好撰寫主控台下的 Pascal 程式 (比如說你正在上一堂 Pascal 的課要交作業用，或是為一個系統撰寫巨集指令)，你也仍然可以使用 Lazarus 來撰寫、編譯並執行。有關於這個部份的開發，請見 [[Console Mode Pascal|主控台模式的 Pascal]] 的章節。
7076
7177## 視窗編輯器
7278
7379當你第一次執行起 Lazarus，會出現一系列不連續的，或說浮動著的視窗。
7480
7581首先，桌面最上方會的標題會是 **Lazarus 編輯 vXXXXXX - 專案1** (會隨著你目前的專案名稱變化)。這是控制你專案的主視窗，包含了主選單與元件面板。
7682
7783![](/wiki-images/4/43/LazMain_GTK2.png)
7884
7985標題列下面的橫幅就是*主選單 (Main Menu)*，有著一般常見的檔案，編輯，搜尋與檢視分類項目，下面還有幾個區塊來執行 Lazarus 的特定工作。 再下來的橫幅左邊是一些符號 (可以迅速執行你要的指令)；而右邊就是元件面板。
8086
8187在 Lazarus 編輯器視窗下左邊顯示的是**[物件檢視器](http://lazarus-ccr.sourceforge.net/kbdata/objinsp.jpg)**視窗，而**[Lazarus 原始碼編輯器](http://lazarus-ccr.sourceforge.net/kbdata/editor.jpg)**在右邊。那裡還有很多其他的小視窗，標著 **[Form1](http://lazarus-ccr.sourceforge.net/kbdata/blankform.jpg)**，並與 Lazarus 原始碼編輯器的視窗重疊著。如果無法立即找到他，可以按下 `F12` 在原始碼編輯器與表單之間切換顯示。表單視窗就是指你用來為你的應用程式建立圖形介面的地方，並直接與你撰寫中的 Pascal 原始碼關聯上。而物件檢視器的操作會在解說元件面板的時候一起做更多說明。最後，我們還有一個訊息視窗在螢幕的最下方，這裡 Lazarus 會顯示要告訴程式設計師訊息，例如你在編譯過程出了問題。
8288
8389當你要新開一個新的專案 (或是當你第一次開啟 Lazarus)，一份預設的的表單視窗會先建立好，上面會帶有許多格點用來幫助你定位在上面各似各樣的元件。而最上面一條細長的橫幅就是常見的**縮到最小**，**放到最大**與**關閉**視窗按鈕。點擊表單框框裡隨便一個物作，桌面左側的物件檢視器就會顯示出此物件的所有內容。
8490
8591你在工作的過程中還有可能會看到一些其他的視窗：像**[專案檢視器](http://lazarus-ccr.sourceforge.net/kbdata/projinsp.jpg)**，含有你的專案裡所擁有的檔案的詳細資料，讓你可對專案新加入或是刪除檔案。**訊息**視窗，用來顯示你的專案在編譯過程中出現的錯誤或任何訊息。如果你是在遠端執行 Lazarus，則你原來的這一端還是可以看到在編譯時出現的訊息。
8692
8793## 主選單
8894
8995主選單内容仔細的説明在這裡：[[Main menu/zh TW]]
9096
9197## The Button bar
9298
9399A small toolbar area on the left of the main editor window, just below the Main Menu and to the left of the Component Palette, contains a set of buttons which replicate frequently-used Main Menu selections:
94100
95101在主編輯視窗左方一個小的工具欄區域，就在主選單下方以及套件板的左邊，包含了一組按鈕用來呼叫一些常用的主選單功能：
96102
97103
98104**New unit**, **Open** (with a down-arrow to display a drop-down list of recently used files), **Save**, **Save all**, **New Form**, **Toggle Form/Unit** (ie show either form or source code of Unit), **View Units**, **View Forms**, **Run** (ie compile and Run), **Pause**, **Step Into**, **Step over** (the last two are Debugger functions).
99105
100106## The Component Palette
101107
102108A Tabbed toolbar which displays a large number of icons representing commonly used components for building Forms.
103109
104110Each tab causes the display of a different set of icons, representing a functional group of components. The left-most icon in each tabbed group is an obliquely leftward-facing arrow, called the Selection Tool.
105111
106112If you allow the mouse cursor to hover over any of the icons on the Component Palette, without clicking on the icon, the title of that component will pop-up. Note that each title begins with a 'T' - this signifies 'Type' or more accurately 'Class' of the component. When you select a component for inclusion in a form, the [[Class]] is added to the **[[Type|type]]** section of the **[[Interface|interface]]** part of the [[Unit]] (usually as part of the overall TForm1), and an **instance** of that class is added to the **[[Var|var]]** section (usually as the variable Form1). Any **Methods** that you design to be used by the Form or its Components (ie [[Procedure|Procedures]] or [[Function|Functions]]) will be placed in the **[[Implementation|implementation]]** part of the Unit.
107113
108114#### How To Use the Palette
109115
110116To use the Palette, there must be an open form on view in the editor (if there isn't one, select File -\> New Form). Click on the icon in the appropriate tab of the Palette for the component you want to use, then click on the Form, near where you want the component to appear. When the desired component appears, you can select it by clicking with the mouse. Once selected on the form, the object is also selected in the 物件檢視器 window, where you can edit its properties and events.
111117
112118Adjustments to the visual appearance of an object can be made either by altering the picture itself on the Form using the mouse, or by changing the relevant Property in the Object Editor for that component.
113119
114120If you install additional components, either those you have written yourself, or some coming as a package from some other source, then extra tabs with the relevant icons will appear in your Component Palette. These new components can be selected and used on your forms in the same way as those supplied by default.
115121
116122In the following list of the Components, you will find links to files that contain descriptions of the Units in which they are found. If you want to find out about the properties of a particular component, it is often worth looking at the Inheritance of that component and then inspecting the properties of the base type from which it is derived. For example, to understand TMaskEdit it is also useful to examine TCustomMaskEdit.
117123
118124#### [Standard](http://lazarus-ccr.sourceforge.net/docs/lcl/stdctrls/index-4.html)
119125
120126(See [[Standard tab]] for components description)
121127
122128![](/wiki-images/4/4d/Component_Palette_Standart.png)
123129
124130
125131*Frequently used components:* [TMainMenu](http://lazarus-ccr.sourceforge.net/docs/lcl/menus/tmainmenu.html), [TPopupMenu](http://lazarus-ccr.sourceforge.net/docs/lcl/menus/tpopupmenu.html), [TButton](http://lazarus-ccr.sourceforge.net/docs/lcl/stdctrls/tbutton.html), [TLabel](http://lazarus-ccr.sourceforge.net/docs/lcl/stdctrls/tlabel.html), [TEdit](http://lazarus-ccr.sourceforge.net/docs/lcl/stdctrls/tedit.html), [TMemo](http://lazarus-ccr.sourceforge.net/docs/lcl/stdctrls/tmemo.html), [TToggleBox](http://lazarus-ccr.sourceforge.net/docs/lcl/stdctrls/ttogglebox.html), [TCheckBox](http://lazarus-ccr.sourceforge.net/docs/lcl/stdctrls/tcheckbox.html), [TRadioButton](http://lazarus-ccr.sourceforge.net/docs/lcl/stdctrls/tradiobutton.html), [TListBox](http://lazarus-ccr.sourceforge.net/docs/lcl/stdctrls/tlistbox.html), [TComboBox](http://lazarus-ccr.sourceforge.net/docs/lcl/stdctrls/tcombobox.html), [TScrollBar](http://lazarus-ccr.sourceforge.net/docs/lcl/stdctrls/tscrollbar.html), [TGroupBox](http://lazarus-ccr.sourceforge.net/docs/lcl/stdctrls/tgroupbox.html), [TRadioGroup](http://lazarus-ccr.sourceforge.net/docs/lcl/extctrls/tradiogroup.html), [TCheckGroup](http://lazarus-ccr.sourceforge.net/docs/lcl/extctrls/tcheckgroup.html), [TPanel](http://lazarus-ccr.sourceforge.net/docs/lcl/extctrls/tpanel.html), [TActionList](http://lazarus-ccr.sourceforge.net/docs/lcl/actnlist/tactionlist.html)
126132
127133#### [Additional](http://lazarus-ccr.sourceforge.net/docs/lcl/extctrls/index-4.html)
128134
129135(See [[Additional tab]] for components description)
130136
131137![](/wiki-images/7/7d/Component_Palette_Additional.png)
132138
133139
134140*More, often-used components:* [TBitBtn](http://lazarus-ccr.sourceforge.net/docs/lcl/buttons/tbitbtn.html), [TSpeedButton](http://lazarus-ccr.sourceforge.net/docs/lcl/buttons/tspeedbutton.html), [TStaticText](http://lazarus-ccr.sourceforge.net/docs/lcl/stdctrls/tstatictext.html), [TImage](http://lazarus-ccr.sourceforge.net/docs/lcl/extctrls/timage.html), [TShape](http://lazarus-ccr.sourceforge.net/docs/lcl/extctrls/tshape.html), [TBevel](http://lazarus-ccr.sourceforge.net/docs/lcl/extctrls/tbevel.html), [TPaintBox](http://lazarus-ccr.sourceforge.net/docs/lcl/extctrls/tpaintbox.html), [TNotebook](http://lazarus-ccr.sourceforge.net/docs/lcl/extctrls/tnotebook.html), [TLabeledEdit](http://lazarus-ccr.sourceforge.net/docs/lcl/extctrls/tlabelededit.html), [TSplitter](http://lazarus-ccr.sourceforge.net/docs/lcl/extctrls/tsplitter.html), [TTrayIcon](http://lazarus-ccr.sourceforge.net/docs/lcl/extctrls/ttrayicon.html), [TMaskEdit](http://lazarus-ccr.sourceforge.net/docs/lcl/maskedit/tmaskedit.html), [TCheckListBox](http://lazarus-ccr.sourceforge.net/docs/lcl/checklst/tchecklistbox.html), [TScrollBox](http://lazarus-ccr.sourceforge.net/docs/lcl/forms/tscrollbox.html), [TApplicationProperties](http://lazarus-ccr.sourceforge.net/docs/lcl/forms/tapplicationproperties.html), [TStringGrid](http://lazarus-ccr.sourceforge.net/docs/lcl/grids/tstringgrid.html), [TDrawGrid](http://lazarus-ccr.sourceforge.net/docs/lcl/grids/tdrawgrid.html), [TPairSplitter](http://lazarus-ccr.sourceforge.net/docs/lcl/pairsplitter/tpairsplitter.html), [TColorBox](http://lazarus-ccr.sourceforge.net/docs/lcl/colorbox/tcolorbox.html), [TColorListBox](http://lazarus-ccr.sourceforge.net/docs/lcl/colorbox/tcolorlistbox.html), [TChart](http://lazarus-ccr.sourceforge.net/docs/lcl/chart/index.html)
135141
136142#### [Common Controls](http://lazarus-ccr.sourceforge.net/docs/lcl/comctrls/index-4.html)
137143
138144(See [[Common Controls tab]] for components description)
139145
140146![](/wiki-images/4/4a/Component_Palette_Common_Controls.png)
141147
142148
143149[TTrackBar](http://lazarus-ccr.sourceforge.net/docs/lcl/comctrls/ttrackbar.html), [TProgressBar](http://lazarus-ccr.sourceforge.net/docs/lcl/comctrls/tprogressbar.html), [TTreeView](http://lazarus-ccr.sourceforge.net/docs/lcl/comctrls/ttreeview.html), [TListView](http://lazarus-ccr.sourceforge.net/docs/lcl/comctrls/tlistview.html), [TStatusBar](http://lazarus-ccr.sourceforge.net/docs/lcl/comctrls/tstatusbar.html), [TToolBar](http://lazarus-ccr.sourceforge.net/docs/lcl/comctrls/ttoolbar.html), [TUpDown](http://lazarus-ccr.sourceforge.net/docs/lcl/comctrls/tupdown.html), [TPageControl](http://lazarus-ccr.sourceforge.net/docs/lcl/comctrls/tpagecontrol.html), [TTabControl](http://lazarus-ccr.sourceforge.net/docs/lcl/comctrls/ttabcontrol.html), [THeaderControl](http://lazarus-ccr.sourceforge.net/docs/lcl/comctrls/theadercontrol.html), [TImageList](http://lazarus-ccr.sourceforge.net/docs/lcl/controls/timagelist.html), [TPopupNotifier](http://lazarus-ccr.sourceforge.net/docs/lcl/popupnotifier/index.html)
144150
145151#### [Dialogs](http://lazarus-ccr.sourceforge.net/docs/lcl/dialogs/index-4.html)
146152
147153(See [[Dialogs tab]] for components description)
148154
149155![](/wiki-images/7/72/Component_Palette_Dialogs.png)
150156
151157
152158[TOpenDialog](http://lazarus-ccr.sourceforge.net/docs/lcl/dialogs/topendialog.html), [TSaveDialog](http://lazarus-ccr.sourceforge.net/docs/lcl/dialogs/tsavedialog.html), [TSelectDirectoryDialog](http://lazarus-ccr.sourceforge.net/docs/lcl/dialogs/tselectdirectorydialog.html), [TColorDialog](http://lazarus-ccr.sourceforge.net/docs/lcl/dialogs/tcolordialog.html), [TFontDialog](http://lazarus-ccr.sourceforge.net/docs/lcl/dialogs/tfontdialog.html), [TFindDialog](http://lazarus-ccr.sourceforge.net/docs/lcl/dialogs/tfinddialog.html), [TReplaceDialog](http://lazarus-ccr.sourceforge.net/docs/lcl/dialogs/treplacedialog.html), [TOpenPictureDialog](http://lazarus-ccr.sourceforge.net/docs/lcl/extdlgs/topenpicturedialog.html), [TSavePictureDialog](http://lazarus-ccr.sourceforge.net/docs/lcl/extdlgs/tsavepicturedialog.html), [TCalendarDialog](http://lazarus-ccr.sourceforge.net/docs/lcl/extdlgs/tcalendardialog.html), [TCalculatorDialog](http://lazarus-ccr.sourceforge.net/docs/lcl/extdlgs/tcalculatordialog.html), [TPrinterSetupDialog](http://lazarus-ccr.sourceforge.net/docs/lcl/dialogs/tcustomprintersetupdialog.html), [TPrintDialog](http://lazarus-ccr.sourceforge.net/docs/lcl/dialogs/tcustomprintdialog.html), [TPageSetupDialog](http://lazarus-ccr.sourceforge.net/docs/lcl/dialogs/tcustomprintersetupdialog.html)
153159
154160Several useful **[Dialog](http://lazarus-ccr.sourceforge.net/index.php?wiki=DialogExamples)** procedures or functions don't appear on the Palette, but are easily used as direct calls from your source program.
155161
156162For several good examples of the use of Components see the \$LazarusPath/lazarus/examples subdirectory of your source installation. Many of the programs show how to use dialogs and other components directly without using the IDE and component palette or having a separate form definition file: all the components are fully and explicitly defined in the main Pascal program. Other example programs make full use of the IDE.
157163
158164Remember to open these examples as projects, with the .lpi file. Opening the .pas source code file and hitting RUN will just append this source file to whatever project you opened last.
159165
160166Some examples don't work straight away: you may need to play about with paths and permissions of files or directories. If you want to compile any of the examples, make sure that you have read/write/execute permissions for the files and directories, or copy the files to a directory where you do have the appropriate permissions.
161167
162168Try running the 'testall' program to see a menu of the available components together with small example test forms for most of them; then inspect the code to find out how they work!
163169
164170#### [[Misc]]
165171
166172![](/wiki-images/8/8e/Component_Palette_Misc.png)
167173
168174
169175[TColorButton](http://lazarus-ccr.sourceforge.net/index.php?wiki=DialogsTxt), [TSpinEdit](http://lazarus-ccr.sourceforge.net/docs/lcl/spin/tspinedit.html), [TFloatSpinEdit](http://lazarus-ccr.sourceforge.net/docs/lcl/spin/tfloatspinedit.html), [TArrow](http://lazarus-ccr.sourceforge.net/docs/lcl/arrow/tarrow.html), [TCalendar](http://lazarus-ccr.sourceforge.net/docs/lcl/calendar/tcalendar.html), [TEditButton](http://lazarus-ccr.sourceforge.net/docs/lcl/editbtn/teditbutton.html), [TFileNameEdit](http://lazarus-ccr.sourceforge.net/docs/lcl/editbtn/tfilenameedit.html), [TDirectoryEdit](http://lazarus-ccr.sourceforge.net/docs/lcl/editbtn/tdirectoryedit.html), [TDateEdit](http://lazarus-ccr.sourceforge.net/docs/lcl/editbtn/tdateedit.html), [TCalcEdit](http://lazarus-ccr.sourceforge.net/docs/lcl/editbtn/tcalcedit.html), [TFileListBox](http://lazarus-ccr.sourceforge.net/docs/lcl/filectrl/tfilelistbox.html), [TXMLPropStorage](http://lazarus-ccr.sourceforge.net/docs/lcl/xmlpropstorage/txmlpropstorage.html), [TIniPropStorage](http://lazarus-ccr.sourceforge.net/docs/lcl/inipropstorage/tinipropstorage.html), [TBarChart](http://lazarus-ccr.sourceforge.net/docs/lcl/chart/tbarchart.html), [TButtonPanel](http://lazarus-ccr.sourceforge.net/docs/lcl/buttonpanel/tbuttonpanel.html), TIDEDialogLayoutStorage
170176
171177#### [Data Controls](http://lazarus-ccr.sourceforge.net/docs/lcl/dbctrls/index-4.html)
172178
173179![](/wiki-images/6/62/Component_Palette_DataControls.png)
174180
175181
176182*Data-aware components, which largely replicate the Standard and Additional groups but are applicable to Databases:* [TDBNavigator](http://lazarus-ccr.sourceforge.net/docs/lcl/dbctrls/tdbnavigator.html), [TDBText](http://lazarus-ccr.sourceforge.net/docs/lcl/dbctrls/tdbtext.html), [TDBEdit](http://lazarus-ccr.sourceforge.net/docs/lcl/dbctrls/tdbedit.html), [TDBMemo](http://lazarus-ccr.sourceforge.net/docs/lcl/dbctrls/tdbmemo.html), [TDBImage](http://lazarus-ccr.sourceforge.net/docs/lcl/dbctrls/tdbimage.html), [TDBListBox](http://lazarus-ccr.sourceforge.net/docs/lcl/dbctrls/tdblistbox.html), [TDBComboBox](http://lazarus-ccr.sourceforge.net/docs/lcl/dbctrls/tdbcombobox.html), [TDBCheckBox](http://lazarus-ccr.sourceforge.net/docs/lcl/dbctrls/tdbcheckbox.html), [TDBRadioGroup](http://lazarus-ccr.sourceforge.net/docs/lcl/dbctrls/tdbradiogroup.html), [TDBCalendar](http://lazarus-ccr.sourceforge.net/docs/lcl/dbctrls/tdbcalendar.html), [TDBGroupBox](http://lazarus-ccr.sourceforge.net/docs/lcl/dbctrls/tdbgroupbox.html), [TDBGrid](http://lazarus-ccr.sourceforge.net/docs/lcl/dbgrids/tdbgrid.html)
177183
178184#### [[Data Access]]
179185
180186![](/wiki-images/c/cc/Component_Palette_DataAccess.png)
181187
182188
183189TDatasource, TMemDataset, TSdfDataSet, TFixedFormatDataSet, TDbf
184190
185191#### [[System]]
186192
187193![](/wiki-images/f/fe/Component_Palette_System.png)
188194
189195
190196[TTimer](http://lazarus-ccr.sourceforge.net/docs/lcl/extctrls/ttimer.html), [TIdleTimer](http://lazarus-ccr.sourceforge.net/docs/lcl/extctrls/tidletimer.html), [TLazComponentQueue](http://lazarus-ccr.sourceforge.net/docs/lcl/lresources/tlazcomponentqueue.html), [THtmlHelpDatabase](http://lazarus-ccr.sourceforge.net/docs/lcl/lazhelphtml/thtmlhelpdatabase.html), [THtmlBrowserHelpViewer](http://lazarus-ccr.sourceforge.net/docs/lcl/lazhelphtml/thtmlbrowserhelpviewer.html), [TProcessUTF8](http://lazarus-ccr.sourceforge.net/docs/lcl/asyncprocess/tprocessutf8.html), [TAsyncProcess](http://lazarus-ccr.sourceforge.net/docs/lcl/asyncprocess/tasyncprocess.html), [[doc:fcl/process/tprocess.html|TProcess]], TSimpleIPCClient, TSimpleIPCServer, TXMLConfig, TEventLog
191197
192198#### [[SynEdit]]
193199
194200![](/wiki-images/2/22/Component_Palette_SynEdit.png)
195201
196202
197203''SynEdit is an advanced multi-line edit control, which is integrated into the Lazarus.
198204
199205''SynEdit 是一個整合至 Lazarus 的進階的多行編輯控制。
200206
201207
202208''It is the code editor of the Lazarus IDE and is available in the directory "lazarus/components/synedit".
203209
204210''它是 Lazarus IDE 的源碼編輯器，可以在 "lazarus/components/synedit" 目錄中取得。
205211
206212
207213''It supports Syntax Highlighting, code completion, code folding and includes exporters for html, tex and rtf.
208214
209215''它支援語法高亮，自動完成，源碼摺疊並包含 html, tex, rtf 的輸出者。
210216
211217
212218''It is a fully custom drawn component, meaning that it doesn't wrap native controls of each platform and that no external library is required; this make SynEdit a crossplatform component.
213219
214220''它是完全使用者繪製的套件，意即它包裝了每個平台的原生控制項並且不需要任何外部的 library; 這讓 SynEdit 成為一個跨平台的套件。
215221
216222
217223''Note that the SynEdit available with Lazarus is a fork of the original SynEdit for Borland Delphi, Kylix and C++Builder which can be found in [synedit at sourceforge](http://synedit.sourceforge.net). : TSynEdit, TSynAutoComplete, TSynExporterHTML, TSynMacroRecorder, TSynMemo, TSynPasSyn, TSynFreePascalSyn, TSynCppSyn, TSynJavaSyn, TSynPerlSyn, TSynHTMLSyn, TSynXMLSyn, TSynLFMSyn, TSynUNIXShellScriptSyn, TSynCssSyn, TSynPHPSyn, TSynTeXSyn, TSynSQLSyn, TSynPythonSyn, TSynVBSyn, TSynAnySyn, TSynMultiSyn
218224
219225## How to use Common Controls
220226
221227The Units **StdCtrls**, **ComCtrls** and **ExtCtrls** contain definitions and descriptions of many of the most commonly used controls for constructing Forms and other Objects in Lazarus Applications.
222228
223229Many of the final target controls that the application developer wants to use, such as **TButton**, **TMemo**, **TScrollBar** etc, have a corresponding ancestor class such as **TCustomButton**, **TCustomMemo** or **TCustomScrollBar**. Several of the properties and methods relevant to the final target control are defined (and explained) more fully in the **TCustomXXX** class, and are inherited by the final target control.
224230
225231If you drop a component on the form editor you don't need to add code explicitly to create it. The component is automatically created by the IDE together with the form, and destroyed when the form is destroyed. However, if you create the component yourself by code don't forget to free it when it is no longer needed.
226232
227233#### Ways to Set Properties
228234
229235If you place a component on the Form Designer and look at the 物件檢視器, you can observe the properties change as you move the component around.
230236
231237For example, if you place a button (TButton) on the form, click on it to select it, then move it around the form with the mouse, you can watch the values of Top and Left change in the 物件檢視器 to reflect the new position. If you use the object's re-sizing bars to adjust its size, you can watch the Height and Width properties change as well.
232238
233239On the other hand, by using the 物件檢視器, you can select the value associated with a property such as height, and type in a new value; you can watch the size of the object on the form change to reflect the new value.
234240
235241You can also explicitly change the properties of the object in code by typing (in the appropriate Implementation section of the 原始碼編輯器), for example
236242
237243`Form1.Button1.Height := 48;` If you type this new value into the 原始碼編輯器 and then look back at the Form Designer, you will see that the button on the Form has taken the new size. The new value will also be shown in the 物件檢視器.
238244
239245In summary, there are usually about three different ways to determine each property of an object:
240246
241247- by using the mouse on the form,
242248- by setting the values in the 物件檢視器,
243249- or explicitly by writing code in the editor.
244250
245251#### Common Properties
246252
247253The components defined in these Units have several properties that are common to most of them, and other properties that are specific to the individual components. We shall describe the most common ones here. Unusual or control-specific properties will be described for the individual controls.
248254
249255Additional Help can always be obtained by selecting a property or keyword, in either the 物件檢視器 or the 原始碼編輯器, and pressing `F1`. You will be taken by your Help browser to the appropriate page in the documentation.
250256
251257If the description of a property on that page is insufficient, you can navigate to the corresponding description in the ancestor classes, by selecting the links in the Inheritance listing or by selecting the ancestor Type in the declaration of the object.
252258
253-Some commonly listed properties
259+```text
260+ <caption><b>Some commonly listed properties</b></caption>
261+```
254262
255263Property
256264
257265Meaning
258266
259267Action
260268
261269The main action or event associated with the object. For example selecting an 'Exit' Button might cause the 'Close' action
262270
263271Align
264272
265273Defines the way in which an object is to be lined up with the parent object. Possible values are alTop (placed at the top and using the full available width), alBottom, alLeft (placed at the left and using the full available height), alRight. alNone (place anywhere on parent control) or alClient (takes all available space next to controls aligned to top, bottom, left or right)
266274
267275Anchor
268276
269277Used to keep a control a certain distance from the defined edges of a parent control, when the parent is resized. For example \[akBottom, akRight\] will keep the control a fixed distance from the bottom right corner.
270278
271279AutoSelect
272280
273281When True, an editing control will select all its text when it receives focus or when the Enter key is pressed.
274282
275283AutoSelected
276284
277285True indicate that the edit or combobox control has just performed an AutoSelect operation so that subsequent mouse-clicks and keystrokes proceed normally without selecting the text.
278286
279287BorderSpacing
280288
281289The space around the edge between an **Anchored** control and its parent.
282290
283291Caption
284292
285293The text that is displayed on or near the control; it should preferably give some clue as to the function of the control, or an instruction such as 'Close' or 'Execute'. By default Caption is set to be the same as the 'Name' property, and the application programmer should substitute meaningful text instead of the default values.
286294
287295CharCase
288296
289297Indicates how text is displayed in a text editing control: Normal (retaining the case of the letters typed by the user), converted to uppercase, or converted to lowercase
290298
291299Constraints
292300
293301Sets the minimum and maximum sizes for a control. If a control is resized the new dimensions are always within the ranges given here. You should take care when setting these options that they do not conflict with the Anchors and Align settings.
294302
295303Color
296304
297305The Colour to be used to draw the control or to write the text it contains.
298306
299307Enabled
300308
301309A Boolean property to determine whether or not a control is capable of being selected and performing an action. If it is not **Enabled**, it is often Grayed out on the Form.
302310
303311Font
304312
305313The Font to be used for writing the text associated with the control - either the caption or label, or the text-strings contained within the control. The entry on the 物件檢視器 usually has a (+) box on the left, and selecting this box reveals further options such as character set, colour and size.
306314
307315Hint
308316
309317A short piece of informative pop-up text that appears if the mouse-cursor hovers over the control.
310318
311319Items
312320
313321The list of 'Things' that the object contains, such as a group of images, a series of lines of text, a number of actions in an actionlist, etc
314322
315323Lines
316324
317325An array of strings, containing the textual data in controls with more than a single line of data, such as an Edit-Box or a Combo-Box. The array is zero-indexed, ie the lines are numbered \[0..numLines-1\]
318326
319327Name
320328
321329The identifier by which the control is known in the program. The IDE gives it a default name based on the underlying type, for example successive instances of TBitButton would be named Form1.BitBitton1 and Form1.BitButton2; it is up to the application programmer to give them more meaningful names such as ExitButton or OKButton. By default the Name of the control is applied to the Caption for the control, but the text of the Caption may be changed separately.
322330
323331PopUpMenu
324332
325333A window containing context-sensitive menu information that pops up when the right mouse button is clicked on the object.
326334
327335Position (or Top, Left)
328336
329337Determines where the control is located on the parent form or window
330338
331339ReadOnly
332340
333341Boolean property which, if True, signifies that the contents of the control can be read by the user or the calling routine, but cannot be written or changed.
334342
335343ShowHint
336344
337345Allows a small window containing a context-sensitive Help or other description to be displayed when the mouse cursor 'hovers' over the control.
338346
339347Size (or Height and Width)
340348
341349The dimensions of the control
342350
343351Style
344352
345353The options available for Style depend upon the sort of Control being considered: for instance the Style may be defined by TFormStyle, TBorderStyle, TButtonStyle etc.
346354
347355TabOrder
348356
349357Integer defining where in the sequence of tabs on the Form this control is to lie
350358
351359TabStop
352360
353361Boolean property which if True places this control in the sequence of objects that the user can reach by successively pressing the Tab key
354362
355363Text
356364
357365The String of Text that represents the actual data that this control contains. Applies particularly to Text, Memo and StringList types of object. Most of the editing operations (such as **Select**, **Clear**, **Cut**, **Copy**) are performed in this part of the object, which holds the actual string being edited. If the control contains more than a single line of text, for example **TMemo** or **TComboBox**, then the textual elements are arranged as an array of strings (zero-indexed, ie numbered from \[0..numLines-1\]) in **Lines**.
358366
359367Visible
360368
361369If true, the object can be seen on the Form; if False, object is hidden
362370
363371WordWrap
364372
365373Logical flag to show whether or not word-wrap is enabled, ie if a word comes close to the end of a line and is going to be too long for the line, it is wrapped down to the next line.
366374
367375#### Event Actions
368376
369377Many actions are commonly listed in the 'Events' tab of the 物件檢視器. If you select an entry in the list, a ComboBox appears with a DropDown list showing any actions that have aleady been defined, and allowing you to choose one to be associated with this event. Alternatively you can select the ellipsis (three dots ...) and you will be taken to an area of the 原始碼編輯器 where you can begin typing your own action instructions for the selected event.
370378
371379While a large number of events is available for any given control, in practice it is only necessary to populate a few of them. For most controls, it is sufficient to provide coding for 'OnClick'; for more complex controls it may be necessary also to provide for 'OnEntry' (when the mouse cursor enters the Control and gives it focus) and 'OnExit' (when the mouse cursor leaves the Control; or you may need to write an event handler for 'OnChange' or 'OnScroll', depending on the nature of the particular control with which you are dealing.
372380
373381The pop-up menu that appears when you right-click an object in the Form Designer has, as its first item: 'Create default event' and selecting this option will have the same effect as selecting the ellipsis in the 物件檢視器 for the default event, usually OnClick: you are taken to the Implementation area of the 原始碼編輯器 where you can type the code for the event handler.
374382
375383A common strategy in Object-Oriented programming is to provide an **ActionList** with the facility for entering, removing or editing a number of pre-defined actions from which the most appropriate can be selected to use in any particular instance.
376384
377-Some commonly listed Actions
385+```text
386+ <caption><b>Some commonly listed Actions</b></caption>
387+```
378388
379389Action
380390
381391Meaning
382392
383393OnChange
384394
385395Action to be taken if any change is detected (eg mouse move, mouse click, key press, edit text, alter picture, etc)
386396
387397OnClick
388398
389399Action to be taken when the (first, usually left) mouse button is clicked. This is commonly the main or default action of the control; for example clicking on a button or checkbox initiates the action associated with the checkbox. It may alternatively initate a process of selection, for instance in a TextBox or Memo, or signal the beginning of painting with a Pen or Brush.
390400
391401Click
392402
393403A method to emulate in code the effect of clicking on a control. This method is most often found in Button-type controls (TButton, TBitBtn, TSpeedButton etc). A procedure can be written that calls the same code as the OnClick action. This facility can be particularly useful if the activation of one control by clicking causes a cascade of other controls to be activated, and the Click method can be used to initiate the action rather than having the user explicitly click on a lot of controls.
394404
395405OnDragDrop
396406
397407Action to be taken during Drag-Drop manoeuvres, ie when the mouse is used to 'capture' an item or some text etc and move it around the screen to a new location.
398408
399409OnEntry
400410
401411Action to be taken when the mouse cursor enters the area occupied by the object, usually transfering focus to that object. This might include changes in the appearance of the object such as highlighting or raising the border.
402412
403413OnExit
404414
405415Action to be taken when the mouse moves out of the area of the object, usually transferring focus out of the object.
406416
407417OnKeyPress
408418
409419Action to be taken for any key-press. Subtly different from OnKeyDown, which simply responds to a key being down, whether or not it was already down when focus was given to this control. OnKeyPress requires that a key becomes pressed while focus is in this control.
410420
411421OnKeyDown
412422
413423Action to be taken if a key is down while focus is in this control. Subtly different from OnKeyPress - for example the key might already have been down when focus entered this control, whereas OnKeyPress requires the key to become pressed while focus is in the control.
414424
415425OnKeyUp
416426
417427Action to be taken if a key is up (ie not pressed) while focus is in this control.
418428
419429OnMouseMove
420430
421431Action to be taken if the mouse cursor moves while focus is in this control.
422432
423433OnMouseDown
424434
425435Action to be taken if the mouse button is down while focus is in this control.
426436
427437OnMouseUp
428438
429439Action to be taken if the mouse button is up while the cursor is over this control. Implies that the mouse button was previously down and has been released. The case where the cursor enters the control but the mouse button has not yet been pressed is covered by OnEntry or OnMouseEnter.
430440
431441OnResize
432442
433443Action to be taken when the control is resized. Might include re-alignment of text or selection of a different font size etc.
434444
435445#### Contructors & Destructors
436446
437447These are two special methods associated with each control:
438448
439449- **Constructors:** such as **Create** allocate memory and system resources needed by the object. They also call the constructor of any sub-objects present in the class.
440450
441451- **Destructors:** remove the object and de-allocate memory and other resources. If you call **Destroy** for an object which hasn't being initialized yet it will generate an error. Always use the **Free** method to deallocate objects, because it checks whether an object's value is nil before invoking **Destroy**.
442452
443453Take the following precautions when creating your own **Destroy** method:
444454
445455- Declare **Destroy** with the override directive, because it is a virtual method.
446456- Always call **'inherited Destroy;**' as the last thing on the destructor code.
447457- Be aware that an **exception** may be raised on the **constructor** in case there is not enought memory to create an object, or something else goes wrong. If the **exception** is not handled inside the constructor, the object will be only partially built. In this case **Destroy** will be called when you weren't expecting it, so your destructor must check if the resources were really allocated before disposing of them.
448458- Remember to call **Free** for all objects created on the constructor.
449459
450460## How to use Menu Controls
451461
452462Hints for creating Menus for your Forms
453463
454464*TMainMenu* is the Main Menu that appears at the top of most forms; form designers can customise by choosing various menu items. *TPopupMenu* is a menu window that pops up with pertinent, usually context-sensitive, details and choices when the right mouse button is clicked near a control
455465
456466Main Menu is a non-visible component : that is, if the icon is selected from the Component Palette and placed on the Form, it will not appear at Run-time. Instead, a Menu bar with a structure defined by the Menu Editor will appear. Popup menus, placed on the form by selecting the icon from the Component Palette, do not appear at all unless the right mouse button is clicked on a control that owns such a menu.
457467
458468To see the Menu Editor, right-click on the Main Menu or Popup Menu icon on your Form. A pop-up box appears, that invites you to enter items into the Menu bar.
459469
460470An Edit box is displayed, containing a Button labelled New Item1. If you right-click on that box, a pop-up menu is displayed that allows you to add a new item before or after (along the same level) or create a sub-menu with the opportunity to add further items below (or above) the new item in a downward column.
461471
462472Any or all of the *MenuItems* that you add can be configured using the 物件檢視器.
463473
464474At the least you should give each item a *Caption* which will appear on the Menu Bar (you may also wish to give it a more meaningful *Name*). The caption should indicate the activity to be selected, such as "File Open" or "Close", "Run" or "Quit"
465475
466476If you want a particular letter in the Caption to be associated with a shortcut key, that letter should be preceded by an ampersand. The Menu item at run-time will appear with the shortcut letter underlined, and hitting that letter key will have the same effect as selecting the menu item. Alternatively you can choose a shortcut key sequence (such as `Ctrl`+`C` for Copy or `Ctrl`+`V` for Paste - the standard Keyboard shortcuts) with the *ShortCut* property of the MenuItem.
467477
468478It is often helpful to use the Menu controls in conjuction with an *ActionList* which contains a series of standard or customised *Actions*. Menu Items can be linked in the 物件檢視器 to Actions on the list, and the same actions can be linked to *Buttons*, *ToolBar Buttons*, *SpeedButtons* etc. It is obviously economic of effort to re-use the same code to respond to the various events, rather than writing separate *OnClick* event handlers for each individual control.
469479
470480By default a number of standard actions is pre-loaded from *StdActns* or, if DataAware controls are being used, from *DBActns*, and these can be chosen using the ActionList editor which appears when you right-click on the ActionList icon on the Form Designer.
471481
472482## 除錯器
473483
474484
475485*撰寫中*.
476486
477487可參見 [IDE 視窗－除錯](/wiki-category/IDE%20Window%20-%20Debug)
478488
479489## The Lazarus files
480490
481-`   (Thanks to Kevin Whitefoot.)`\
482-`   (Additions by Giuseppe Ridino, `User:Kirkpatc` and Tom Lisjac)`
491+```text
492+ (Thanks to Kevin Whitefoot.)
493+ (Additions by Giuseppe Ridino, User:Kirkpatc and Tom Lisjac)
494+```
483495
484496When you save you will actually be saving two files:
485497
486-`  xxx.pas and yyy.lpr `
498+```text
499+ xxx.pas and yyy.lpr
500+```
487501
488502(You save more than that but those are the ones you get to name). The project file (lpr) and the unit file (pas) must not have the same name because Lazarus will helpfully rename the unit (inside the source code) to the same as the unit file name and the program to the name of the project file (it needs to do this or the compiler will probably not be able to find the unit later when referred to in the project file). Of course to be consistent it changes all the occurrences of unit1 to xxx.
489503
490504So if you are saving a project called **again**, trying to save again.pas and again.lpr fails because unit names and program names are in the same name space resulting in a duplicate name error.
491505
492506So here is what I ended up with:
493507
494508e:/lazarus/kj/lazhello:
495509
496-`total 4740  free 76500`\
497-`-rwxrwxrwx   1 kjwh     root  4618697 Mar 24 11:19 again.exe`\
498-`-rw-rw-rw-   1 kjwh     root     3002 Mar 24 11:21 again.lpi`\
499-`-rw-rw-rw-   1 kjwh     root      190 Mar 24 11:18 again.lpr`\
500-`-rw-rw-rw-   1 kjwh     root      506 Mar 24 11:08 againu.lfm`\
501-`-rw-rw-rw-   1 kjwh     root      679 Mar 24 11:08 againu.lrs`\
502-`-rw-rw-rw-   1 kjwh     root      677 Mar 24 11:08 againu.pas`\
503-`-rw-rw-rw-   1 kjwh     root     2124 Mar 24 11:08 againu.ppu`\
504-`-rwxrwxrwx   1 kjwh     root      335 Mar 24 11:07 ppas.bat`
510+```text
511+total 4740 free 76500
512+-rwxrwxrwx 1 kjwh root 4618697 Mar 24 11:19 again.exe
513+-rw-rw-rw- 1 kjwh root 3002 Mar 24 11:21 again.lpi
514+-rw-rw-rw- 1 kjwh root 190 Mar 24 11:18 again.lpr
515+-rw-rw-rw- 1 kjwh root 506 Mar 24 11:08 againu.lfm
516+-rw-rw-rw- 1 kjwh root 679 Mar 24 11:08 againu.lrs
517+-rw-rw-rw- 1 kjwh root 677 Mar 24 11:08 againu.pas
518+-rw-rw-rw- 1 kjwh root 2124 Mar 24 11:08 againu.ppu
519+-rwxrwxrwx 1 kjwh root 335 Mar 24 11:07 ppas.bat
520+```
505521
506522Note that there are many more files than the two that I thought I was saving.
507523
508524Here is a brief note about each file:
509525
510526**again.exe:** The main program binary executable. Win32 adds an "exe" extension. Linux has none (just the name of the program). This file will be huge in Linux due to the inclusion of debugging symbols. Run the "strip" utility to remove them and substantially shrink the executable size.
511527
512528**again.lpi:** (Lazarus Project Information). This is the main information file of a Lazarus project; the equivalent Delphi main file of an application will be the .dpr file. It is stored in an XML format and contains instructions about all the libraries and units required to build the executable file.
513529
514530**again.lpr:** The main program source file or master file. Despite its lazarus specific extension it is in fact a perfectly normal Pascal source file. It has a uses clause that lets the compiler find all the units it needs. Note that the program statement does not have to name the program the same as the file name. This file is usually fairly small, with just a few statements to initialise, build the forms, run and close the application. Most of the work is done in the unit source files, with suffix '.pas'
515531
516532**againu.lfm:** This is where Lazarus stores the layout of the form unit, in human readable form. It reflects the properties of the various components, as set in the 物件檢視器. Each object description starts with a line:
517533
518-`object xxxx `\
519-`  then there follows a list of properties `\
520-`  (including embedded or nested objects) then an `\
521-`end `
534+``` pascal
535+object xxxx
536+ then there follows a list of properties
537+ (including embedded or nested objects) then an
538+end
539+```
522540
523541line. Lazarus uses this file to generate a resource file (.lrs) that is included in the initialisation section of the againu.pas unit. Delphi dfm files can be converted to lfm format in the Lazarus IDE using the Tools-\>Convert DFM file to LFM utility.
524542
525543**againu.lrs:** This is the generated resource file which contains the instructions to the program for building the form (if you look in the main Unit file, you will see in the initialization section the line
526544
527-`{$i againu.lrs} `
545+```text
546+{$i againu.lrs}
547+```
528548
529549which instructs the program to load the resource file). Note that it is not a Windows resource file.
530550
531551**againu.pas:** The unit that contains the code for the form; this is usually the only file that the application programmer needs to edit or inspect, and contains any code specifically supplied by the programmer (especially event handlers).
532552
533553**againu.ppu:** This is the compiled unit which gets linked into the executable file together with any other units named in the Uses section.
534554
535555**ppas.bat:** This is a simple script that links the program to produce the executable. If compilation is successfull, it is deleted by the compiler.
536556
537557## See also
538558
539559- [[Lazarus IDE Tools]]
540560
541561---
542562*From the Free Pascal wiki, page "Lazarus Tutorial/zh TW", as it stood on 2022-09-29 after a change by Felizkuo, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's [[Licensing]] page. If you have concerns about this material, [message the admin](/wiki-contact).*
543563Category: Tutorials/zh TW

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