[MacRuby] #1173: Impossible to have a pointer to an opaque structure

[MacRuby]

#1173: Impossible to have a pointer to an opaque structure
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 Reporter:  vincent.isambart@…          |       Owner:  lsansonetti@…        
     Type:  defect                      |      Status:  new                  
 Priority:  major                       |   Milestone:  MacRuby 1.0          
Component:  MacRuby                     |    Keywords:                       
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Comment(by mred@…):

 The code works with the following changes:

 {{{
 --- playFile1.rb        2011-02-28 19:17:19.000000000 -0500
 +++ playFile2.rb        2011-02-28 19:17:45.000000000 -0500
 @@ -16,10 +16,12 @@

  url = CFURLCreateFromFileSystemRepresentation(nil, inputFilePath,
 inputFilePath.bytesize, false)

 -audioFilePtr = Pointer.new("^{OpaqueAudioFileID}")
 +audioFilePtr = Pointer.new AudioFileID.type
  CheckError(AudioFileOpenURL(url, KAudioFileReadPermission, 0,
 audioFilePtr))

  fileFormat = AudioStreamBasicDescription.new
 -propSizePtr = Pointer.new("i")
 +propSizePtr = Pointer.new("I")
  propSizePtr[0] = AudioStreamBasicDescription.size
 -CheckError(AudioFileGetProperty(audioFilePtr[0],
 KAudioFilePropertyDataFormat, propSizePtr, fileFormat))
 +fileFormat_ptr = Pointer.new AudioStreamBasicDescription.type
 +fileFormat_ptr[0] = fileFormat
 +CheckError(AudioFileGetProperty(audioFilePtr[0],KAudioFilePropertyDataFormat,
 propSizePtr, fileFormat_ptr))
 }}}

-- 
Ticket URL: <http://www.macruby.org/trac/ticket/1173#comment:1>
MacRuby <http://macruby.org/>