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This structure defines the properties of a waveform audio stream.
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
OS Versions: Windows CE 5.0 and later.
Header: Mmsystem.h.
See Also
Waveform Audio Structures | waveInGetProperty | waveInSetProperty | waveOutGetProperty | waveOutSetProperty | Audio Gain Classes
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