IPnpCallback interface

The IPnpCallback interface is a Plug and Play (PnP) and power management (PM) interface.

Members

The IPnpCallback interface inherits from the IUnknown interface. IPnpCallback also has these types of members:

Methods

The IPnpCallback interface has these methods.

MethodDescription
IPnpCallback::OnD0Entry

The OnD0Entry method notifies a driver when a device enters the D0 power state so that the driver can perform necessary operations, such as enabling the device.

IPnpCallback::OnD0Exit

The OnD0Exit method notifies a driver when a device exits the D0 power state so that the driver can perform necessary operations, such as disabling the device.

IPnpCallback::OnQueryRemove

The OnQueryRemove method notifies a driver before a device is removed from a computer.

IPnpCallback::OnQueryStop

The OnQueryStop method notifies a driver before a device is stopped.

IPnpCallback::OnSurpriseRemoval

The OnSurpriseRemoval method notifies a driver after a device is removed from a computer unexpectedly so that the driver can perform necessary operations.

 

Remarks

A driver registers the IPnpCallback interface when the driver calls the IWDFDriver::CreateDevice method to create a device object.

Requirements

Header

Wudfddi.h (include Wudfddi.h)

 

 

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