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- Liberty BASIC introduction and installation notes.
- -------------------------------------------------------------------------
-
- Thank you for trying Liberty BASIC! Liberty BASIC is marketed as
- as shareware. If you find this program useful, please register it.
- When you do you will receive the runtime engine, which will allow you
- distribute your programs without paying any royalties, and you will also
- receive the most recent version of this program. See the file
- REGISTER.TXT.
-
- This help system is based on the printed documentation. You cannot actually
- type information into these help windows, but you can copy code out by
- highlighting it using the mouse, and then pulling down the Edit menu and
- selecting Copy. This is useful when you want to try out a code example in
- these files without typing it all in.
-
- Additionally, you can print any of these help files by pulling down the
- Functions menu and selecting print. If you highlight the area you want to
- print using the mouse, then only that selected text will print. Otherwise
- you will be asked if the entire text should be printed.
-
- --------------------------------------------------------------------------
-
-
- System Requirements:
-
-
- Liberty BASIC is software for IBM AT compatible computers and
- requires the following hardware and software:
-
- One 286, 386, or 486 computer with at least 3 megabytes of RAM and
- a hard drive with at least 2.5 megabytes of free space. On machines
- that only have 286 processors, 4 or more megabytes RAM is the
- preferred configuration. Microsoft Windows version 3.0 or version
- 3.1 (running in standard or enhanced mode), and a mouse.
-
- - or -
-
- One 386 or 486 computer running OS/2 2.0 and at least 6 megabytes
- of RAM, and with at least 2.5 megabytes (more strongly recommended)
- of free hard disk space. Win/OS2 must be installed, and you must have
- a mouse.
-
-
- INSTALLATION:
-
- To install Liberty BASIC, first make sure that you are not
- running Windows. The program INSTALL.EXE is included with
- Liberty BASIC to install it for you.
-
- Run this program, and you will be asked where Windows resides.
- The default is C:\WINDOWS. If Windows resides anywhere else,
- you must specify it here.
-
- Now you will be asked where to install Liberty BASIC. The
- default is C:\LIBERTY. If you want it to be installed elsewhere,
- then you must specify it here.
-
- You will then be given an opportunity to abort the installation.
- If you choose not to abort, then installation will begin then.
-
- Once installation is complete, you may load Windows. If you
- specified any directory to install Liberty BASIC into other than
- \LIBERTY, then you will need to alter the properties for the
- Liberty BASIC icon to indicate where it is installed. Otherwise
- you can just go ahead and double-click on its icon to start
- Liberty BASIC.
-
- Liberty BASIC starts with a file browser window. It is arranged as
- four panes, three across the top, and one on the bottom like so:
-
- +--------------------------------------------------------------+
- | - Liberty BASIC c:\liberty v ^ |
- +--------------------------------------------------------------+
- | a [1] | [..] [2] | demo.bas [3] |
- | b | liberty | read.bas |
- | c | msdos | test.bas |
- | | | |
- | select drive here | select directory | select file here |
- | | here | |
- +--------------------------------------------------------------+
- | [4] |
- | |
- | |
- | |
- | see BASIC source code here |
- | |
- | |
- | |
- | |
- +--------------------------------------------------------------+
-
- Select the drive to browse in pane [1], then select the directory
- (usually liberty) to browse in pane [2], then finally the file to
- browse in pane [3]. When the .BAS file is selected, its source will
- be displayed in pane [4]. To run the program, position the cursor
- inside of pane [3] and press the right hand mouse button and a menu
- will appear. Then select the item BASIC source editor, and a new
- window will open which will contain a copy of the source for the
- selected file. Then position the cursor inside of that pane and again
- press the right hand mouse button for another menu. There are two
- options available, Run and Debug. Run compiles and runs the program,
- and Debug provides the additional benefit of a 3 level source level
- debugger with optional watch window.
-
- If you want help, you can get this on-line by pulling down the Help
- menu. If you select a word in the source editor and then select help,
- the system will try to find that word or command in the text. When
- the help window opens, pressing CTRL-F will also bring up a find
- dialog box.
-
- Your First Liberty BASIC Program:
-
- Let's illustrate how to develop programs with Liberty BASIC. This next
- program is often the first example given when teaching any programming
- language.
-
- First use your mouse to select the hard drive onto which you installed
- Liberty BASIC (probably drive C:). Next select the appropriate directory
- (probably \liberty) and a list of BASIC program files will appear as below.
-
-
-
- {Illustration was here}
-
-
-
- Now pull down the Files menu and select Create. You will be asked for a
- filename for your new program. Type hello, and then press the Enter key
- or click on OK.
-
-
-
- {Illustration was here}
-
-
-
- You will now be asked to confirm creation of your new program file. Click
- on Yes or press the Enter key. If you type it wrong, then click on No.
-
-
-
- {Illustration was here}
-
-
-
- Now press the Enter key a couple of times and press the Tab key. Then type:
-
- print "hello world!"
-
- Now use the mouse to point at the text you just typed and press the button
- on the right side of the mouse, and a menu will appear. Your should see:
-
-
-
- {Illustration was here}
-
-
-
- Now you can point at the Run item and press the left-hand mouse button to
- run your program, or your can just press the 'R' key to accomplish the same
- thing.
-
- You will see a window open and then at once another smaller window will open
- with a notice saying: Execution of hello.bas complete. This second window
- blocks your view of the first, which contains the result of your program.
- Click on the OK button to remove the notice, and you'll be able to see it
- better.
-
- Here is what your finished program should look like.
-
-
-
- {Illustration was here}
-
-
-
- Now close the window labeled: Program named - 'hello.bas'.
-
- Let's save hello.bas so that we can refer back to it later. Pull down the
- File menu and select the Save option. Your first program is now saved to
- disk.
-
-
-
- {Illustration was here}
-
-
-
- Running other Programs:
-
- Let's try running one of the sample programs that comes with Liberty BASIC.
- Select the file named buttons1.bas and run it as shown below:
-
-
-
- {Illustration was here}
-
-
-
- A window will appear with some buttons:
-
- Three color buttons: Red, Blue, and Green
- Two shape buttons: Triangle and Square
- One other button: Size
-
- This program will display two different kinds of spirals, a triangular kind,
- and a square kind. Three different color options are available: red, blue,
- and green. Additionally, the program will let you decide how large to draw
- the spiral.
-
- Play around a bit with it. Experiment.
-
-
- {Illustration was here}
-
-
-
- When you're all done, close the window. Buttons1.bas will stop and ask for
- confirmation before it closes the window.
-
-
-
-