AVStrMiniDeviceQueryInterface routine

AVStream calls a minidriver's AVStrMiniDeviceQueryInterface routine when it receives an IRP_MN_QUERY_INTERFACE.

Syntax

PFNKSDEVICEIRP AVStrMiniDeviceQueryInterface;

NTSTATUS AVStrMiniDeviceQueryInterface(
  _In_ PKSDEVICE Device,
  _In_ PIRP      Irp
)
{ ... }

Parameters

• Device [in]
  Pointer to the KSDEVICE structure that received the IRP_MN_QUERY_INTERFACE.

• Irp [in]
  The IRP_MN_QUERY_INTERFACE issued by Device.

Return value

Your driver should return STATUS_SUCCESS or an appropriate error status.

Remarks

A driver or system component sends this IRP to get information about an interface exported by your driver. For more information about the IRP, see IRP_MN_QUERY_INTERFACE.

The minidriver specifies this routine's address in the QueryInterface member of its KSDEVICE_DISPATCH structure.

This routine is optional.

Requirements

See also

KSDEVICE_DISPATCH

IRP_MN_QUERY_INTERFACE

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