| Microsoft DirectX 9.0 SDK Update (Summer 2004) |
DMUS_IO_WAVE_ITEM_HEADER
The DMUS_IO_WAVE_ITEM_HEADER structure contains data for a wave sound in a Wave Track List.
Syntax
typedef struct _DMUS_IO_WAVE_ITEM_HEADER {
long lVolume;
long lPitch;
DWORD dwVariations;
REFERENCE_TIME rtTime;
REFERENCE_TIME rtStartOffset;
REFERENCE_TIME rtReserved;
REFERENCE_TIME rtDuration;
MUSIC_TIME mtLogicalTime;
DWORD dwLoopStart;
DWORD dwLoopEnd;
DWORD dwFlags;
WORD wVolumeRange;
WORD wPitchRange;
} DMUS_IO_WAVE_ITEM_HEADER;
Members
lVolume
Gain, in hundredths of a decibel. Must be a negative value.
lPitch
Pitch offset, in hundredths of a semitone.
dwVariations
Variation flags. One bit is set for each variation this wave belongs to.
rtTime
Start time, in reference time if the track is in clock time format; otherwise in music time.
rtStartOffset
Distance into wave to start playback, in reference time.
rtReserved
Not used.
rtDuration
Duration, in reference time if the track is in clock time format; otherwise in music time.
mtLogicalTime
Musical boundary where this belongs. Ignored if the track is in clock time format.
dwLoopStart
Start point for a looping wave.
dwLoopEnd
End point for a looping wave.
dwFlags
Flags. Can be 0 or one of the values in the following table.
| Value | Description |
| DMUS_WAVEF_IGNORELOOPS | Wave is not invalidated when a segment loop point is reached. |
| DMUS_WAVEF_NOINVALIDATE | This wave is not to be invalidated. |
| DMUS_WAVEF_STREAMING | Wave is streaming. |
wVolumeRange
Amount by which volume can be randomized, in hundredths of a decibel.
wPitchRange
Amount by which pitch can be randomized, in hundredths of a semitone.
Requirements
Header: Declared in dmusicf.h.
See Also
© 2004 Microsoft Corporation. All rights reserved.