| Operations |
| Create | Initializes the DirectSound object. |
| GetCDVolume | Returns the current CD Output Volume. |
| GetCaps | Gets the current sound capabilities. |
| GetDIGIVolume | Returns the current Digital Output Volume. |
| GetMIDIVolume | Returns the current Midi Output Volume. |
| SetCDVolume | Sets the CD Output Volume to rvol, lvol( they must betwen 0 and 100 ). |
| SetDIGIVolume | Sets the Digital Output Volume to rvol, lvol( they must betwen 0 and 100 ). |
| SetMIDIVolume | Sets the Midi Output Volume to rvol, lvol( they must betwen 0 and 100 ). |
| SoundOnOff | |