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The get_HookSwitchState method returns a PHONE_HOOK_SWITCH_STATE value specifying the state to which the hookswitch has transitioned. This information is available only when the ITPhoneEvent::get_Event method returns PE_HOOKSWITCH.
Syntax
HRESULT get_HookSwitchState(
[out] PHONE_HOOK_SWITCH_STATE *pState
);
Parameters
[out] pState
Pointer to the PHONE_HOOK_SWITCH_STATE descriptor of the current hookswitch state.
Return value
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | tapi3if.h (include Tapi3.h) |
| Library | Uuid.lib |
| DLL | Tapi3.dll |