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			142 lines
		
	
	
	
		
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			TeX
		
	
	
	
	
	
			
		
		
	
	
			142 lines
		
	
	
	
		
			4.8 KiB
		
	
	
	
		
			TeX
		
	
	
	
	
	
| \section{\module{winsound} ---
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|          Sound-playing interface for Windows}
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| 
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| \declaremodule{builtin}{winsound}
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|   \platform{Windows}
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| \modulesynopsis{Access to the sound-playing machinery for Windows.}
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| \moduleauthor{Toby Dickenson}{htrd90@zepler.org}
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| \sectionauthor{Fred L. Drake, Jr.}{fdrake@acm.org}
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| 
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| \versionadded{1.5.2}
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| 
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| The \module{winsound} module provides access to the basic
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| sound-playing machinery provided by Windows platforms.  It includes
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| functions and several constants.
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| 
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| 
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| \begin{funcdesc}{Beep}{frequency, duration}
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|   Beep the PC's speaker.
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|   The \var{frequency} parameter specifies frequency, in hertz, of the
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|   sound, and must be in the range 37 through 32,767.
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|   The \var{duration} parameter specifies the number of milliseconds the
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|   sound should last.  If the system is not
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|   able to beep the speaker, \exception{RuntimeError} is raised.
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|   \note{Under Windows 95 and 98, the Windows \cfunction{Beep()}
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|   function exists but is useless (it ignores its arguments).  In that
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|   case Python simulates it via direct port manipulation (added in version
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|   2.1).  It's unknown whether that will work on all systems.}
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|   \versionadded{1.6}
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| \end{funcdesc}
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| 
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| \begin{funcdesc}{PlaySound}{sound, flags}
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|   Call the underlying \cfunction{PlaySound()} function from the
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|   Platform API.  The \var{sound} parameter may be a filename, audio
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|   data as a string, or \code{None}.  Its interpretation depends on the
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|   value of \var{flags}, which can be a bit-wise ORed combination of
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|   the constants described below.  If the system indicates an error,
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|   \exception{RuntimeError} is raised.
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| \end{funcdesc}
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| 
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| \begin{funcdesc}{MessageBeep}{\optional{type=\code{MB_OK}}}
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|   Call the underlying \cfunction{MessageBeep()} function from the
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|   Platform API.  This plays a sound as specified in the registry.  The
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|   \var{type} argument specifies which sound to play; possible values
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|   are \code{-1}, \code{MB_ICONASTERISK}, \code{MB_ICONEXCLAMATION},
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|   \code{MB_ICONHAND}, \code{MB_ICONQUESTION}, and \code{MB_OK}, all
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|   described below.  The value \code{-1} produces a ``simple beep'';
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|   this is the final fallback if a sound cannot be played otherwise.
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|   \versionadded{2.3}
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| \end{funcdesc}
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| 
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| \begin{datadesc}{SND_FILENAME}
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|   The \var{sound} parameter is the name of a WAV file.
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|   Do not use with \constant{SND_ALIAS}.
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| \end{datadesc}
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| 
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| \begin{datadesc}{SND_ALIAS}
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|   The \var{sound} parameter is a sound association name from the
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|   registry.  If the registry contains no such name, play the system
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|   default sound unless \constant{SND_NODEFAULT} is also specified.
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|   If no default sound is registered, raise \exception{RuntimeError}.
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|   Do not use with \constant{SND_FILENAME}.
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| 
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|   All Win32 systems support at least the following; most systems support
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|   many more:
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| 
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| \begin{tableii}{l|l}{code}
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|                {\function{PlaySound()} \var{name}}
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|                {Corresponding Control Panel Sound name}
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|   \lineii{'SystemAsterisk'}   {Asterisk}
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|   \lineii{'SystemExclamation'}{Exclamation}
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|   \lineii{'SystemExit'}       {Exit Windows}
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|   \lineii{'SystemHand'}       {Critical Stop}
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|   \lineii{'SystemQuestion'}   {Question}
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| \end{tableii}
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| 
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|   For example:
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| 
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| \begin{verbatim}
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| import winsound
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| # Play Windows exit sound.
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| winsound.PlaySound("SystemExit", winsound.SND_ALIAS)
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| 
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| # Probably play Windows default sound, if any is registered (because
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| # "*" probably isn't the registered name of any sound).
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| winsound.PlaySound("*", winsound.SND_ALIAS)
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| \end{verbatim}
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| \end{datadesc}
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| 
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| \begin{datadesc}{SND_LOOP}
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|   Play the sound repeatedly.  The \constant{SND_ASYNC} flag must also
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|   be used to avoid blocking.  Cannot be used with \constant{SND_MEMORY}.
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| \end{datadesc}
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| 
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| \begin{datadesc}{SND_MEMORY}
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|   The \var{sound} parameter to \function{PlaySound()} is a memory
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|   image of a WAV file, as a string.
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| 
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|   \note{This module does not support playing from a memory
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|   image asynchronously, so a combination of this flag and
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|   \constant{SND_ASYNC} will raise \exception{RuntimeError}.}
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| \end{datadesc}
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| 
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| \begin{datadesc}{SND_PURGE}
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|   Stop playing all instances of the specified sound.
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| \end{datadesc}
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| 
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| \begin{datadesc}{SND_ASYNC}
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|   Return immediately, allowing sounds to play asynchronously.
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| \end{datadesc}
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| 
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| \begin{datadesc}{SND_NODEFAULT}
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|   If the specified sound cannot be found, do not play the system default
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|   sound.
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| \end{datadesc}
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| 
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| \begin{datadesc}{SND_NOSTOP}
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|   Do not interrupt sounds currently playing.
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| \end{datadesc}
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| 
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| \begin{datadesc}{SND_NOWAIT}
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|   Return immediately if the sound driver is busy.
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| \end{datadesc}
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| 
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| \begin{datadesc}{MB_ICONASTERISK}
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|   Play the \code{SystemDefault} sound.
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| \end{datadesc}
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| 
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| \begin{datadesc}{MB_ICONEXCLAMATION}
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|   Play the \code{SystemExclamation} sound.
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| \end{datadesc}
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| 
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| \begin{datadesc}{MB_ICONHAND}
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|   Play the \code{SystemHand} sound.
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| \end{datadesc}
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| 
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| \begin{datadesc}{MB_ICONQUESTION}
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|   Play the \code{SystemQuestion} sound.
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| \end{datadesc}
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| 
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| \begin{datadesc}{MB_OK}
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|   Play the \code{SystemDefault} sound.
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| \end{datadesc}
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