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IPnpCallback interface (wudfddi.h)

  • Artikel

[Warning: UMDF 2 is the latest version of UMDF and supersedes UMDF 1. All new UMDF drivers should be written using UMDF 2. No new features are being added to UMDF 1 and there is limited support for UMDF 1 on newer versions of Windows 10. Universal Windows drivers must use UMDF 2. For more info, see Getting Started with UMDF.]

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

Inheritance

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

  • Methods

Methods

The IPnpCallback interface has these methods.

 
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

Requirement Value
Target Platform Windows
Header wudfddi.h (include Wudfddi.h)