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IRequestCallbackRequestCompletion interface (wudfddi.h)

  • Article

[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.]

A driver implements the IRequestCallbackRequestCompletion interface to complete a request object.

Inheritance

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

  • Methods

Methods

The IRequestCallbackRequestCompletion interface has these methods.

 
IRequestCallbackRequestCompletion::OnCompletion

The OnCompletion method completes the specified request.

Remarks

A driver registers the IRequestCallbackRequestCompletion interface when it calls the IWDFIoRequest::SetCompletionCallback method. For more information about how a driver completes an I/O request, see Completing I/O Requests.

Requirements

Requirement Value
Target Platform Windows
Header wudfddi.h