Window creation/X11: Difference between revisions

=={{header|Racket}}==

Using Racket's GUI which is implemented using gtk. It's not low level, but OTOH it works on Windows and OS X too.

<lang Racket>

#lang racket/gui

(define frame (new frame%

[label "Example"]

[width 300]

[height 300]))

(new canvas% [parent frame]

[paint-callback

(lambda (canvas dc)

(send dc set-scale 3 3)

(send dc set-text-foreground "blue")

(send dc draw-text "Don't Panic!" 0 0))])

(send frame show #t)

</lang>