Re: [racket-users] Re: How to put image background?

Do you mean http://docs.racket-lang.org/graphics/Draw__Clear__and_Flip_Operations.html?q=Viewport#%28part._.Pixmaps%29 I've not used the viewports stuff For the racket/gui toolkit I think you can do this by overriding on-paint for a canvas on a frame http://docs.racket-lang.org/gui/canvas___.html

[racket-users] Re: How to put image background?

2015年12月16日水曜日 1時43分03秒 UTC+9 Alejandro López: > I want to know how to put a background image in a viewport In graphic use, I recommend 2htdp/image library. If you need to treat .bmp or .png so on, you can paste the file images into your code. (Dr. Racket's menubar, select [Insert] - [Insert Imag