| Microsoft DirectX 8.1 (C++) |
This section contains reference information for the following structures used with DirectSound:
| Structure | Description |
| D3DVECTOR | Describes a vector. |
| DS3DBUFFER | Contains all information necessary to uniquely describe the location, orientation, and motion of a 3-D sound buffer. |
| DS3DLISTENER | Describes the 3-D world parameters and position of the listener. |
| DSBCAPS | Describes the capabilities of a DirectSound buffer object. |
| DSBPOSITIONNOTIFY | Describes a notification position. |
| DSBUFFERDESC | Describes the characteristics of a new DirectSoundBuffer object. |
| DSCAPS | Describes the capabilities of a DirectSound device. |
| DSCBCAPS | Describes the capabilities of a capture buffer. |
| DSCBUFFERDESC | Describes a capture buffer. |
| DSCCAPS | Describes the capabilities of the capture device. |
| DSCEFFECTDESC | Contains parameters for an effect associated with a capture buffer. |
| DSCFXAec | Contains parameters for acoustic echo cancellation in a capture buffer. |
| DSCFXNoiseSuppress | Contains parameters for noise suppression in a capture buffer. |
| DSEFFECTDESC | Describes an effect associated with a buffer. |
| DSFXI3DL2Reverb | Contains parameters for an I3DL2 (Interactive 3D Audio Level 2) reverberation effect. |
| DSFXChorus | Contains parameters for a chorus effect. |
| DSFXCompressor | Contains parameters for a compression effect. |
| DSFXDistortion | Contains parameters for a distortion effect. |
| DSFXEcho | Contains parameters for an echo effect. |
| DSFXFlanger | Contains parameters for a flange effect. |
| DSFXGargle | Contains parameters for an amplitude modulation effect. |
| DSFXParamEq | Contains parameters for a parametric equalizer effect. |
| DSFXWavesReverb | Contains parameters for a Waves reverberation effect. |
| WAVEFORMATEX | Defines the format of waveform-audio data. |
| WAVEFORMATEXTENSIBLE | Defines the format of waveform-audio data for formats having more than two channels. |
Note The memory for all DirectX structures must be initialized to zero before use. In addition, all structures that contain a dwSize member must set the member to the size of the structure, in bytes, before use. The following example performs these tasks on a common structure, DSCAPS:
DSCAPS dscaps; // Cannot use this yet.
ZeroMemory(&dscaps, sizeof(dscaps));
dscaps.dwSize = sizeof(dscaps);
// Now the structure can be used.
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