Muokkaa

Jaa


KSPROPERTY_SYSAUDIO_DEVICE_INTERFACE_NAME

The KSPROPERTY_SYSAUDIO_DEVICE_INTERFACE_NAME property retrieves a Unicode string containing the Plug and Play device interface name for the specified virtual audio device.

Usage Summary Table

Get Set Target Property descriptor type Property value type

Yes

No

Filter

KSPROPERTY+ULONG

LPWSTR

The property descriptor (instance data) consists of a KSPROPERTY structure followed by a ULONG variable containing a device ID that identifies a virtual audio device. If SysAudio enumerates n virtual audio devices (see KSPROPERTY_SYSAUDIO_DEVICE_COUNT), then valid device IDs range from 0 to n-1. Also, a device ID value of -1 can be used to indicate the current device, which is the last virtual audio device opened by a KSPROPERTY_SYSAUDIO_DEVICE_INSTANCE or KSPROPERTY_SYSAUDIO_INSTANCE_INFOset-property request.

The property value (operation data) is a pointer to a null-terminated string of Unicode characters that contains the device's interface name.

Return Value

A KSPROPERTY_SYSAUDIO_DEVICE_INTERFACE_NAME property request returns STATUS_SUCCESS to indicate that it has completed successfully. Otherwise, the request returns an appropriate error status code.

Requirements

Header

Ksmedia.h (include Ksmedia.h)

See also

KSPROPERTY

KSPROPERTY_SYSAUDIO_DEVICE_COUNT

KSPROPERTY_SYSAUDIO_DEVICE_INSTANCE

KSPROPERTY_SYSAUDIO_INSTANCE_INFO