function plays a sound specified by the given filename, resource, or system
event. (A system event may be associated with a sound in the registry or in the
| LPCSTR pszSound,
| HMODULE hmod,
| DWORD fdwSound
A string that specifies the sound to play. If this parameter is NULL, any
currently playing waveform sound is stopped. To stop a non-waveform sound, specify
SND_PURGE in the fdwSound
Three flags in fdwSound
(SND_ALIAS, SND_FILENAME, and SND_RESOURCE) determine whether the name is
interpreted as an alias for a system event, a filename, or a resource identifier.
If none of these flags are specified, PlaySound
searches the registry or the WIN.INI file for an association with the
specified sound name. If an association is found, the sound event is played. If no
association is found in the registry, the name is interpreted as a filename.
Handle of the executable file that contains the resource to be loaded. This
parameter must be NULL unless SND_RESOURCE is specified in fdwSound
Flags for playing the sound. The following values are defined:
The sound is played using an application-specific association.
parameter is a system-event alias in the registry or the WIN.INI file. Do not
use with either SND_FILENAME or SND_RESOURCE.
parameter is a predefined sound identifier.
The sound is played asynchronously and PlaySound
returns immediately after beginning the sound. To terminate an asynchronously
played waveform sound, call PlaySound
set to NULL.
parameter is a filename.
The sound plays repeatedly until PlaySound
is called again with the pszSound
parameter set to NULL. You must also specify the SND_ASYNC flag to indicate
an asynchronous sound event.
A sound event's file is loaded in RAM. The parameter specified by pszSound
must point to an image of a sound in memory.
No default sound event is used. If the sound cannot be found, PlaySound
returns silently without playing the default sound.
The specified sound event will yield to another sound event that is already
playing. If a sound cannot be played because the resource needed to generate that
sound is busy playing another sound, the function immediately returns FALSE
without playing the requested sound.
If this flag is not specified, PlaySound
attempts to stop the currently playing sound so that the device can be used
to play the new sound.
If the driver is busy, return immediately without playing the sound.
Sounds are to be stopped for the calling task. If pszSound
is not NULL, all instances of the specified sound are stopped. If pszSound
is NULL, all sounds that are playing on behalf of the calling task are
You must also specify the instance handle to stop SND_RESOURCE events.
parameter is a resource identifier; hmod
must identify the instance that contains the resource.
Synchronous playback of a sound event. PlaySound
returns after the sound event completes.
Returns TRUE if successful or FALSE otherwise.
The sound specified by pszSound
must fit into available physical memory and be playable by an installed
waveform-audio device driver. PlaySound
searches the following directories for sound files: the current directory;
the Windows directory; the Windows system directory; directories listed in the
PATH environment variable; and the list of directories mapped in a network. For
more information about the directory search order, see the documentation for the OpenFile
If it cannot find the specified sound, PlaySound
uses the default system event sound entry instead. If the function can find
neither the system default entry nor the default sound, it makes no sound and
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