ITAutomatedPhoneControl::get_AutoVolumeControl method (tapi3if.h)
The get_AutoVolumeControl method retrieves the current value of the AutoVolumeControl property. When this feature is enabled, the phone's wave output volume is automatically adjusted whenever a volume button is pressed. The volume is adjusted by the amount indicated by the AutoVolumeControlStep property.
Syntax
HRESULT get_AutoVolumeControl(
[out] VARIANT_BOOL *fEnabled
);
Parameters
[out] fEnabled
VARIANT_TRUE indicates that automatic volume control is enabled. VARIANT_FALSE indicates that automatic volume control is disabled.
Return value
If the method succeeds, it returns S_OK. Otherwise, it returns an error value.
Remarks
You can set the AutoVolumeControl property at any time. The reconfiguration takes effect the next time a volume button is pressed.
The AutoVolumeControl property functions only when the value of the PhoneHandlingEnabled property is VARIANT_TRUE.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | tapi3if.h (include Tapi3.h) |
| Library | Uuid.lib |
| DLL | Tapi3.dll |