TwclAudioVolume Class
The component provides methods to control volume control for an audio endpoints.
type TwclAudioVolume = class(TwclCustomAudioEndpoint) end;
The TwclAudioVolume type exposes the following members.
| Name | Description | |
|---|---|---|
 | Create(TComponent) | Creates new audio volume component. (Overrides TwclCustomAudioEndpoint.Create(TComponent).) |
| Name | Description | |
|---|---|---|
 | Active | Gets the Audio Switcher state. (Inherited from TwclCustomAudio.) |
 | Enumerator | Gets the Audio devices enumerator interface. (Inherited from TwclCustomAudio.) |
| Id | Gets the endpoint ID. (Inherited from TwclCustomAudioEndpoint.) |
| OnClosed | The event fires when the Audio Switcher was closed. (Inherited from TwclCustomAudio.) |
| OnDisconnected | The even fires when the endpoint used by this class has been disconnected or removed. (Inherited from TwclCustomAudioEndpoint.) |
| OnOpened | The event fires when the Audio Switcher was opened. (Inherited from TwclCustomAudio.) |
| Receiver | Gets the message receiver. (Inherited from TwclCustomAudio.) |
| Name | Description | |
|---|---|---|
| Close | Closes the audio endpoint. (Overrides TwclCustomAudio.Close.) |
 | DoChanged(Boolean,Single,TwclAudioPeakValues) | The method fires the |
| DoClosed | Calls the |
| DoDisconnected | Fires the OnDisconnected event. (Inherited from TwclCustomAudioEndpoint.) |
| DoOpened | Calls the |
| GetChannels(Cardinal) | Gets the number of channels in the audio stream that are controlled by the volume control. (Overrides TwclCustomAudioEndpoint.GetChannels(Cardinal).) |
| GetChannelVolume(Cardinal,Single) | Gets the channel volume level of the audio stream that enters or leaves the audio endpoint device. The volume level is expressed as a normalized, audio-tapered value in the range from 0.0 to 1.0. |
| GetHardwareFeatures(TwclAudioHardwareFeatures) | Queries the audio endpoint device for its hardware-supported functions. (Overrides TwclCustomAudioEndpoint.GetHardwareFeatures(TwclAudioHardwareFeatures).) |
| GetMute(Boolean) | Gets the audio endpoint mute. |
| GetVolume(Single) | Gets the master volume level of the audio stream that enters or leaves the audio endpoint device. The volume level is expressed as a normalized, audio-tapered value in the range from 0.0 to 1.0. |
| InternalClose | The method called during audio subsystem finalization. (Overrides TwclCustomAudio.InternalClose.) |
| InternalOpen | The method called during audio subsystem initialization. (Overrides TwclCustomAudio.InternalOpen.) |
| MessageReceived(TwclMessage) | The method called when a new notification message received. (Overrides TwclCustomAudioEndpoint.MessageReceived(TwclMessage).) |
| Open(string) | Opens the specified audio endpoint. (Inherited from TwclCustomAudioEndpoint.) |
| SetChannelVolume(Cardinal,Single) | Sets the channel volume level of the audio stream that enters or leaves the audio endpoint device. The volume level is expressed as a normalized, audio-tapered value in the range from 0.0 to 1.0. |
| SetMute(Boolean) | Sets the audio endpoint mute. |
| SetVolume(Single) | Sets the master volume level of the audio stream that enters or leaves the audio endpoint device. The volume level is expressed as a normalized, audio-tapered value in the range from 0.0 to 1.0. |
