IPNPXDeviceAssociation::Delete method (pnpxassoc.h)

[Function Discovery is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in subsequent versions.]

Removes an entry from the association database and sends an appropriate notification.

Syntax

HRESULT Delete(
  [in, optional] const WCHAR                    *pszSubcategory,
  [in]           IFunctionDiscoveryNotification *pIFunctionDiscoveryNotification
);

Parameters

[in, optional] pszSubcategory

The subcategory of the association database in which the entry is stored. This parameter can be NULL.

[in] pIFunctionDiscoveryNotification

An IFunctionDiscoveryNotification object that is registered for notifications with Function Discovery.

Return value

Possible return values include, but are not limited to, the following.

Remarks

This method modifies the association database entry corresponding to the function instance from which the IPNPXDeviceAssociation interface was obtained.

The following logic is used to determine the callback method used for notification:

• If a PnP notification is received after the device is deleted, then the IFunctionDiscoveryNotification::OnUpdate method is called with the enumQueryUpdateAction parameter set to QUA_REMOVE.
• If no PnP notification is received after the device is deleted, and there are no pending PnP events, then the IFunctionDiscoveryNotification::OnError method is called.
• Finally, if no PnP notification is received after the device is deleted, and there are pending PnP events, then no callback method is called.

Requirements

See also

IPNPXAssociation::Delete

IPNPXDeviceAssociation