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C/C++ Source or Header  |  1995-08-05  |  2.3 KB  |  110 lines  |  [TEXT/MMCC]
  1. //____________________________________________________________
  2. //    SpeechChannelIntro.c
  3. //
  4. //    Copyright © Dan Parks Sydow, 1995
  5. //    From the book:
  6. //    "Graphics and Sound Programming Techniques for the Mac",
  7. //    M&T Books, 1995
  8.  
  9.  
  10. //____________________________________________________________
  11.  
  12. #include <Gestalt.h>
  13. #include <Speech.h>
  14.  
  15.  
  16. //____________________________________________________________
  17.  
  18. void           InitializeToolbox( void );
  19. Boolean        IsSpeechAvailable( void );
  20. SpeechChannel  OpenOneSpeechChannel( void );
  21.  
  22.  
  23. //____________________________________________________________
  24.  
  25. void  main( void )
  26. { 
  27.    OSErr          theError;
  28.    Boolean        speechPresent;
  29.    SpeechChannel  theChannel;
  30.    Str255         theString =  "\pUsing my own speech channel";
  31.    
  32.    InitializeToolbox();
  33.  
  34.    speechPresent = IsSpeechAvailable();
  35.    if ( speechPresent == false )
  36.       ExitToShell();
  37.  
  38.    theChannel = OpenOneSpeechChannel();
  39.    if ( theChannel == nil )
  40.       ExitToShell();
  41.  
  42.    theError = SpeakText( theChannel, (Ptr)(theString + 1), theString[0] );
  43.    if ( theError != noErr )
  44.       ExitToShell();
  45.  
  46.    while ( SpeechBusy() == true )
  47.       ;
  48.             
  49.    theError = DisposeSpeechChannel( theChannel );
  50.    if ( theError != noErr )
  51.       ExitToShell();
  52. }
  53.  
  54.  
  55. //____________________________________________________________
  56.  
  57. SpeechChannel  OpenOneSpeechChannel( void )
  58. {
  59.    SpeechChannel  theChannel;   
  60.    OSErr          theError;
  61.    
  62.    theError = NewSpeechChannel( nil, &theChannel );
  63.    
  64.    if ( theError != noErr )
  65.    {
  66.       theError = DisposeSpeechChannel( theChannel );
  67.       theChannel = nil;
  68.    }
  69.       
  70.    return ( theChannel );
  71. }
  72.  
  73.  
  74. //____________________________________________________________
  75.  
  76. Boolean  IsSpeechAvailable( void )
  77. {
  78.    OSErr    theError;
  79.    long     theResult;
  80.    Boolean  speechAvail;
  81.    
  82.    theError = Gestalt( gestaltSpeechAttr, &theResult );
  83.    if ( theError != noErr )
  84.       ExitToShell();
  85.       
  86.    speechAvail = theResult & ( 1 << gestaltSpeechMgrPresent );  
  87.    if ( speechAvail > 0 )
  88.       return ( true );
  89.    else
  90.       return ( false );
  91. }
  92.  
  93.  
  94. //____________________________________________________________
  95.  
  96. void  InitializeToolbox( void )
  97. {
  98.    InitGraf( &qd.thePort );
  99.    InitFonts();
  100.    InitWindows();
  101.    InitMenus();
  102.    TEInit();
  103.    InitDialogs( 0L );
  104.    FlushEvents( everyEvent, 0 );
  105.    InitCursor();
  106. }
  107.  
  108.  
  109.  
  110.