[Newbies] Beginner wants to start graphic windows in Smalltalk 80 - need help

[Hans Schueren]

To whom it may concern ,


may i ask for some help about standard graphic routines ?

As a beginner i just have learned all the first level SYNTAX of 
smalltalk 80.

Now , you can imagine , i am interested in writing little GUI windows 
and graphics for

placing some text in the right positions.


Theese are the statements i have studied from my material.


Does anybody know why the statements not work?

Are there any "replacements" for the syntax that i posted here as example ?

Have a nice day




HERE ARE THE EXAMPLES :




| window |
window := ScheduledWindow new.
window component: 'Hello World' asComposedText.
window open




| window |
window := ScheduledWindow new.
window label: 'Fenster ohne Inhalt'.
window minimumSize: 200 @ 100; maximumSize: 400 @ 300.
window open




displayOn: aGraphicsContext
1 to: 10 do:
[:i|
aGraphicsContext translation printString
    asComposedText displayOn: aGraphicsContext.
aGraphicsContext translateBy: 15 @ 15]




Greetings


Hans
The Byte Surfer