HWN_CLIENT_QUERY_DEVICE_INFORMATION callback

Description

Implemented by the client driver to retrieve hardware notification component attributes.

Parameters

Context [in]

Pointer to the client driver's context information. This memory space is available for use by the client driver. It is allocated as part of the framework object context space by WdfDeviceCreate. For more information, see HWN_CLIENT_REGISTRATION_PACKET and Framework Object Context Space.

Information [out]

Pointer to a buffer that receives the controller’s attributes.

Return value

Return STATUS_SUCCESS if the operation succeeds. Otherwise, return an appropriate NTSTATUS error code.

Prototype

HWN_CLIENT_QUERY_DEVICE_INFORMATION HwnClientQueryDeviceInformation;

NTSTATUS HwnClientQueryDeviceInformation(
  _In_  PVOID                      Context,
  _Out_ PCLIENT_DEVICE_INFORMATION Information
)
{ ... }

typedef HWN_CLIENT_QUERY_DEVICE_INFORMATION PHWN_CLIENT_QUERY_DEVICE_INFORMATION;

Remarks

Register your implementation of this callback function by setting the appropriate member of HWN_CLIENT_REGISTRATION_PACKET and then calling HwNRegisterClient.

See also

Hardware notifications support

Hardware notifications reference