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Re: Drawing over a transparent background
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Re: Drawing over a transparent background


  • Subject: Re: Drawing over a transparent background
  • From: Rob Keniger <email@hidden>
  • Date: Mon, 24 Aug 2009 14:29:22 +1000


On 24/08/2009, at 9:33 AM, Ron Fleckner wrote:

My borderless window has a semi-transparent background. When the drawing in a subview changes, the background retains a ghost of the original drawing in the subview. I don't want that ghost image!


What are you returning for the -isOpaque method of your custom view? If your view has any parts that have an alpha less than 1.0 then you must return NO from this method.

--
Rob Keniger



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