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4/8/2010

This structure defines the properties of a waveform audio stream.

Syntax 

typedef struct tagSTREAMPROPS {
  DWORD 
dwClassID;
  DWORD 
dwFlags;
} STREAMPROPS, *PSTREAMPROPS;

Members

dwClassID

A DWORD value that identifies the playback class for the waveform audio stream. The following table shows the possible values for this member.

Flag Description

WAGC_CLASS_DEFAULT

The stream is in the default playback class.

WAGC_CLASS_NORMAL

The stream is in the normal playback class.

WAGC_CLASS_AUDIO_ALERT

The stream is in the audio alert default playback class.

WAGC_CLASS_SPEECH_ALERT

The stream is in the speech alert playback class.

WAGC_CLASS_SPEECH_NOTIFICATION

The stream is in the speech notification playback class.

WAGC_CLASS_AUDIO_NOTIFICATION

The stream is in the audio notification playback class.

WAGC_CLASS_FORCE_MUTE

The stream is in the muted playback class.

WAGC_CLASS_MAX

The value is the upper bound for playback classes. Playback class values higher than this are illegal.
dwFlags

A DWORD value contains a bit mask that contains one or more flags describing the audio stream. The following table shows the possible flags in this bit mask.

Flag Description

SPSFL_NOTIFY_GAIN_CHANGE

The stream is affected by audio gain classes.

SPSFL_EXCLUDE

The stream not affected by audio gain classes.

Requirements

Header mmsystem.h
Windows Embedded CE Windows CE 5.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also