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Re: Question about respondsToSelector
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Re: Question about respondsToSelector


  • Subject: Re: Question about respondsToSelector
  • From: Marcel Weiher <email@hidden>
  • Date: Wed, 20 Aug 2008 18:38:04 -0700


On Aug 19, 2008, at 6:33 AM, Carmen Cerino Jr. wrote:


if ([_delegate respondsToSelector: @selector(SGDecompDataProc:)]){

[_delegate SGDecompDataProc:pixelBuffer
trackingFlags:decompressionTrackingFlags
displayTime:displayTime
displayDuration:displayDuration
validTimeFlags:validTimeFlags]

[had full selector originally, but didn't work]

*Smacks forehead*

Believe it or not I had that originally and it didn't work. I must of had a type-o in the function header that I was passing to respondsToSelector.

One way to avoid that sort of problem is the "ifResponds" Higher Order Message:



[[_delegate ifResponds] SGDecompDataProc:pixelBuffer trackingFlags:decompressionTrackingFlags displayTime:displayTime displayDuration:displayDuration validTimeFlags:validTimeFlags]


This will send the message if _delegate responds to it.

Cheers,

Marcel

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References: 
 >Question about respondsToSelector (From: "Carmen Cerino Jr." <email@hidden>)
 >Re: Question about respondsToSelector (From: Andy Lee <email@hidden>)
 >Re: Question about respondsToSelector (From: "Carmen Cerino Jr." <email@hidden>)

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