[Mono-list] DrawingArea needs to redraw signal??

Michael Hutchinson m.j.hutchinson at gmail.com
Mon Nov 15 18:46:15 EST 2010

On Sat, Nov 13, 2010 at 9:21 AM, Francisco M. Marzoa <fmmarzoa at gmx.net> wrote:
> Hello again,
> In my application I've a DrawingArea. I use that DA's GdkWindow property
> to create a Cairo.Context. I can draw on the DA but if I, for example,
> resize the main window, the DA is erased.
> I assume I must redraw the DA in some events, isn't it? If this is the
> case, the question is what signal(s) on the DA may I "catch" to redraw
> when needed????

Override OnExpose or handle the ExposeEvent event and inspect the
args.Event value. There you will find the invalidated region, and a
Window drawable.

Michael Hutchinson

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