// acxpin.h

EVT_ACX_JACK_RETRIEVE_PRESENCE_STATE EvtAcxJackRetrievePresenceState;

NTSTATUS EvtAcxJackRetrievePresenceState(
  ACXJACK Jack,
  PBOOLEAN IsConnected
)
{...}
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Windows Driver Kit DDI reference (nc-acxpin-evt_acx_jack_retrieve_presence_state)

Description

The EVT_ACX_JACK_RETRIEVE_PRESENCE_STATE callback function is implemented by the driver and is called when the state is requested for the specified jack.

Parameters

`Jack`

The physical terminal for which the presence state has been requested.

`IsConnected`

A Boolean value indicating if the terminal specified by the Jack parameter is present and connected.

Return value

EVT_ACX_JACK_RETRIEVE_PRESENCE_STATE returns STATUS_SUCCESS if the call was successful. Otherwise, it returns an NTSTATUS error code.

Remarks

ACX requirements

Minimum ACX version: 1.0

For more information about ACX versions, see ACX version overview.

EVT_ACX_JACK_RETRIEVE_PRESENCE_STATE - NtDoc