How to repaint a canvas?

Peter Reich (Peter.Reich@FernUni-Hagen.de)
Fri, 13 Dec 1996 13:11:14 +0100

To subscribers of the xforms list from Peter.Reich@FernUni-Hagen.de (Peter Reich) :

Hello,

What is the recommended way to repaint a canvas? Do i have to call the expose
function or is there another way to do it? The problem i have is like this:
I have to implement a zoom function. Every time i press a zoom button, the
canvas has to be redrawn with a new scale factor. What is best way to achieve
this.

(oh, i forgot the questionmark, sorry)

Thanks for your help

Peter
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