| UID | title | description | old-location | tech.root | ms.date | keywords | ms.keywords | req.header | req.include-header | req.target-type | req.target-min-winverclnt | req.target-min-winversvr | req.kmdf-ver | req.umdf-ver | req.ddi-compliance | req.unicode-ansi | req.idl | req.max-support | req.namespace | req.assembly | req.type-library | req.lib | req.dll | req.irql | targetos | req.typenames | f1_keywords | topic_type | api_type | api_location | api_name | ||||||||
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NN:wudfddi.IQueueCallbackStateChange |
IQueueCallbackStateChange (wudfddi.h) |
An I/O queue object raises an event when it changes state. A driver can consume the event by registering the IQueueCallbackStateChange interface. |
wdf\iqueuecallbackstatechange.htm |
wdf |
02/26/2018 |
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IQueueCallbackStateChange, IQueueCallbackStateChange interface, IQueueCallbackStateChange interface,described, UMDFQueueObjectRef_57a57868-6a9d-42b3-8c74-ceb6c4be03c3.xml, umdf.iqueuecallbackstatechange, wdf.iqueuecallbackstatechange, wudfddi/IQueueCallbackStateChange |
wudfddi.h |
Windows |
Windows |
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[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.]
An I/O queue object raises an event when it changes state. A driver can consume the event by registering the IQueueCallbackStateChange interface.
The IQueueCallbackStateChange interface inherits from the IUnknown interface. IQueueCallbackStateChange also has these types of members:
- Methods
A driver registers the IQueueCallbackStateChange interface when the driver calls the IWDFDevice::CreateIoQueue method to create an I/O queue or to configure the default I/O queue.