Sets the device volume.
BOOL BASS_WASAPI_SetVolume( DWORD mode, float volume );
|The type of volume to set and the curve to use.
|The volume level... 0 (silent) to 1 (max) if using the linear or Windows curves, else a dB level. The device's valid dB level range can be obtained from BASS_WASAPI_GetInfo.
Return valueIf successful, then TRUE is returned, else FALSE is returned. Use BASS_ErrorGetCode to get the error code.
|BASS_WASAPI_Init has not been successfully called.
|Volume control is unavailable.
|volume is invalid.
|Some other mystery problem!
RemarksSession volume only affects the current process, so other users of the device are unaffected. It has no effect on exclusive mode output, and maps to the device volume with input devices (so does affect other users). Session volume always uses the BASS_WASAPI_CURVE_WINDOWS curve.
When the BASS_WASAPI_CURVE_LINEAR curve is used, the resulting volume level may not be exactly as requested because it gets translated to a dB value within the device's valid dB level range, which is available from BASS_WASAPI_GetInfo.
When using multiple devices, the current thread's device setting (as set with BASS_WASAPI_SetDevice) determines which device this function call applies to.