IMMDevice::GetState method (mmdeviceapi.h)

The GetState method retrieves the current device state.

Syntax

HRESULT GetState(
  [out] DWORD *pdwState
);

Parameters

[out] pdwState

Pointer to a DWORD variable into which the method writes the current state of the device. The device-state value is one of the following DEVICE_STATE_XXX constants:

DEVICE_STATE_ACTIVE

DEVICE_STATE_DISABLED

DEVICE_STATE_NOTPRESENT

DEVICE_STATE_UNPLUGGED

Return value

If the method succeeds, it returns S_OK. If it fails, possible return codes include, but are not limited to, the values shown in the following table.

Return code	Description
E_POINTER	Parameter pdwState is NULL.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Target Platform	Windows
Header	mmdeviceapi.h

See also

IMMDevice Interface