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Re: Refresh woes for custom OGL pane
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Re: Refresh woes for custom OGL pane

  • Subject: Re: Refresh woes for custom OGL pane
  • From: Cryx <email@hidden>
  • Date: Tue, 30 Apr 2002 21:05:11 -0500
On Tuesday, April 30, 2002, at 09:00 AM, Brent Gulanowski wrote:

On Tuesday, April 30, 2002, at 01:04 AM, Erik M. Buck wrote:
NEVER CALL -drawRect:! Call -display or -displayRect: or -setNeedsDisplay:
or -setNeedsDisplayInRect:. Your failure to call one of these methods may
explain all of your problems.

So what BAD THINGS HAPPEN when you call -drawRect: directly?

In my early experience: difficult to debug timing issues that crash your app. The biggest problem is probably the failure to lock focus. See NSView's drawRect: & lockFocus: documentation for more details.
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 >Re: Refresh woes for custom OGL pane (From: Brent Gulanowski <email@hidden>)

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