cpython/Doc/lib/libwinsound.tex

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\section{\module{winsound} ---
Sound-playing interface for Windows}
\declaremodule{builtin}{winsound}
\platform{Windows}
\modulesynopsis{Access to the sound-playing machinery for Windows.}
\moduleauthor{Toby Dickenson}{htrd90@zepler.org}
\sectionauthor{Fred L. Drake, Jr.}{fdrake@acm.org}
\versionadded{1.5.2}
The \module{winsound} module provides access to the basic
sound-playing machinery provided by Windows platforms. It includes
two functions and several constants.
\begin{funcdesc}{Beep}{frequency, duration}
Beep the PC's speaker.
The \var{frequency} parameter specifies frequency, in hertz, of the
sound, and must be in the range 37 through 32,767 (\code{0x25}
through \code{0x7fff}). The \var{duration} parameter specifies the
number of milliseconds the sound should last. If the system is not
able to beep the speaker, \exception{RuntimeError} is raised.
\strong{Note:} Under Windows 95 and 98, the arguments are ignored;
if the system has a sound card, the system default sound is played
(typically \file{ding.wav}, or whatever is registered as the default
sound via Control Panel -> Sounds); else (no sound card) the
standard system beep.
\versionadded{1.6}
\end{funcdesc}
\begin{funcdesc}{PlaySound}{sound, flags}
Call the underlying \cfunction{PlaySound()} function from the
Platform API. The \var{sound} parameter may be a filename, audio
data as a string, or \code{None}. Its interpretation depends on the
value of \var{flags}, which can be a bit-wise ORed combination of
the constants described below. If the system indicates an error,
\exception{RuntimeError} is raised.
\end{funcdesc}
\begin{datadesc}{SND_FILENAME}
The \var{sound} parameter is the name of a WAV file.
\end{datadesc}
\begin{datadesc}{SND_ALIAS}
The \var{sound} parameter should be interpreted as a control panel
sound association name.
\end{datadesc}
\begin{datadesc}{SND_LOOP}
Play the sound repeatedly. The \constant{SND_ASYNC} flag must also
be used to avoid blocking.
\end{datadesc}
\begin{datadesc}{SND_MEMORY}
The \var{sound} parameter to \function{PlaySound()} is a memory
image of a WAV file.
\strong{Note:} This module does not support playing from a memory
image asynchronously, so a combination of this flag and
\constant{SND_ASYNC} will raise a \exception{RuntimeError}.
\end{datadesc}
\begin{datadesc}{SND_PURGE}
Stop playing all instances of the specified sound.
\end{datadesc}
\begin{datadesc}{SND_ASYNC}
Return immediately, allowing sounds to play asynchronously.
\end{datadesc}
\begin{datadesc}{SND_NODEFAULT}
If the specified sound cannot be found, do not play a default beep.
\end{datadesc}
\begin{datadesc}{SND_NOSTOP}
Do not interrupt sounds currently playing.
\end{datadesc}
\begin{datadesc}{SND_NOWAIT}
Return immediately if the sound driver is busy.
\end{datadesc}