The Form window is the one on which you will construct the graphical interface for your application, while the Source Editor is the window which displays the Pascal code associated with the application which you are developing. If this is not visible immediately, it can be made to appear by pressing the F12 key, which toggles between the Source Editor view and the Form view. There may be another smaller window, labelled 'Form1', overlying the Lazarus Source Editor window. Under the Lazarus Editor window will appear the 'Object Inspector' window on the left, and the Lazarus 'Source Editor' on the right. On the line below the title bar is the Main Menu with the usual entries for File, Edit, Search, View categories and so on, with a few selections that are specific to Lazarus.īelow this on the left is a set of symbols (icons which take you rapidly to particular menu commands) and on the right is the Component Palette. This is the main controlling window for your project, and contains the Main Menu and the Component Palette. The first, running right along the top of the desk-top, is titled project1 - Lazarus IDE vXXXXXX (which will subsequently be modified to reflect the name of your currently-open project). When you launch Lazarus for the first time, a series of separate disconnected or 'floating' windows will appear on your desk-top.
If you prefer to write Console- or text-based Pascal programs (for example if you are following a basic Pascal programming course, or you need to write programs to use in batch mode or for system programming), you can still use Lazarus to edit, compile and run your programs. The left button will now toggle between two alternative messages. Button2Click ( Sender : TObject ) begin begin if Button1. When you click on this, you are taken automatically into the Source Editor and your cursor will be placed in a piece of code related to button1, starting: Select the box to the right of OnClick: a smaller box with three dots (. These include OnClick, OnEnter, OnExit etc. Now click on the Events tab on the Object Inspector, to see the various events that can be associated with this button1. If you hit ↵ Enter or click in another box, you will see the label of the first button on Form1 change to 'Press'. Click on that box, and change 'Button1' to 'Press'. Near the top is a property named 'Caption', with the displayed value 'Button1'. The 'Object Inspector' window will now display the properties of the object Button1. Click again on the Button icon in the Standard tab, and click on the Form1 somewhere to the right of centre: a second rectangle labelled 'Button2' will appear. A shadowed rectangle labelled 'Button1' will appear.
Then click on the Form1 window, somewhere to the left of the middle. Then find the Button icon (a rectangle with 'OK' on it) and click on that with the mouse. If the Standard tab is not already selected, select it by clicking with the mouse. To place a button on the form: on the top Menu window, underneath the menu line, is a row of tabs. Several windows will appear on the desktop: the Main Menu at the top, the 'Object Inspector' on the left, the 'Source Editor' occupying most of the desktop, and a ready-made 'Form1' window ( form1) overlying the Source Editor. A new GUI application is created, see also Form Tutorial. Your first Lazarus Program!įrom the Main Menu, choose Project-New Project-Application (or: File-New-Project-Application). (Issue: In Debian and Ubuntu the main binary and the package was renamed to "lazarus-ide" because the "tct" package already comes with a utility called "lazarus"). Otherwise, if you installed it from a Debian package, you should have a Lazarus menu entry under Application/Programming. Note: On Linux Ubuntu at least, the command to start Lazarus from a console is "startlazarus".
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