Re(2): is [uiObject display] necessary ?
Re(2): is [uiObject display] necessary ?
- Subject: Re(2): is [uiObject display] necessary ?
- From: Jens Bauer <email@hidden>
- Date: Wed, 5 Dec 2001 13:51:06 +0100
Hi John,
On Wed, 5 Dec, 2001, John Hvrnkvist <email@hidden> wrote:
>
>
On Wednesday, December 5, 2001, at 11:04 , Jens Bauer wrote:
>
>
> I'd like to know if there is any reason for [object display]; in
>
> situations like these...
>
/.../
>
> [icon setImage[NSImage imageNamed:@"Yep"]]];
>
> [icon display];
>
>
It's generally not needed. And even if it was needed, this would usually
>
be the wrong way to do it.
>
>
When you do need to make something refresh, you call [icon
>
setNeedsDisplay:YES], allowing the system to aggregate display calls.
Will this update the object immediately, or will it wait till the system
runs through a list of objects that needs to be updated (a'la "post" an
event) ?
Love,
Jens