Re: Drawing in a NSView out side of drawRect
Re: Drawing in a NSView out side of drawRect
- Subject: Re: Drawing in a NSView out side of drawRect
- From: "David Alter" <email@hidden>
- Date: Tue, 23 Dec 2008 09:44:55 -0800
Thanks to everyone that has responded to me. It has been a big help.
> > I want to draw in a NSView but not when drawRect is called.
>
> Others have pointed this out, but I want to reiterate: no you don't.
> Trying to draw outside of drawRect: will only lead to pain. (It is
> useful, on rare occasions. You are not experiencing one of them.) Work
> with the view machinery. Call -setNeedsDisplay:.
>
I understand that the preferred method of doing thing is do your drawing in
drawRect:. I would like to understand better what are the issues and draw
backs to using lockFocus and then drawing.
thanks
-dave
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