IQueueCallbackDefaultIoHandler 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.]

The IQueueCallbackDefaultIoHandler interface contains a method that handles I/O requests that no other method is registered to handle.

Inheritance

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

  • Methods

Methods

The IQueueCallbackDefaultIoHandler interface has these methods.

 
IQueueCallbackDefaultIoHandler::OnDefaultIoHandler

The OnDefaultIoHandler method handles I/O requests that no other method is registered to handle.

Remarks

A driver registers the IQueueCallbackDefaultIoHandler interface when the driver calls the IWDFDevice::CreateIoQueue method to create an I/O queue or to configure the default I/O queue.

Requirements

Requirement Value
Target Platform Windows
Header wudfddi.h