On Jul 4, 2011, at 8:07 AM, Ulf Dunkel wrote:
> This is the method in my AppDelegate.m which should update the button:
>
> - (void)updateKillHelpdButton
> {
> [killHelpdButton setEnabled:[self checkHelpd]];
> [killHelpdButton setNeedsDisplay:YES];
> }
>
> Can someone please tell me what else I should do to force the redraw?
That should work; in fact, you don’t even need the -setNeedsDisplay: call.
- Is this method being called when you expect? Set a breakpoint in it, or add
an NSLog call.
- Is killHelpdButton set to the right value, e.g. non-nil?
- Are you calling this on a background thread? In general you should only call
AppKit from the main thread.
—Jens_______________________________________________
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