[Applies to KMDF and UMDF]
The WdfRequestGetIoQueue method returns a handle to the framework queue object from which a specified I/O request was delivered.
WDFQUEUE WdfRequestGetIoQueue( WDFREQUEST Request );
A handle to a framework request object.
WdfRequestGetIoQueue returns a handle to a framework queue object. If the request was created by the driver, or if the driver has already completed the specified I/O request, the method returns NULL.
A bug check occurs if the driver supplies an invalid object handle.
For more information about WdfRequestGetIoQueue, see Obtaining Information About an I/O Request.
The following code example obtains a handle to the device object that represents the device that a request belongs to.
WDFDEVICE device; device = WdfIoQueueGetDevice(WdfRequestGetIoQueue(Request));
|Minimum KMDF version||1.0|
|Minimum UMDF version||2.0|
|Header||wdfrequest.h (include Wdf.h)|
|Library||Wdf01000.sys (KMDF); WUDFx02000.dll (UMDF)|
|DDI compliance rules||DriverCreate, InvalidReqAccess, InvalidReqAccessLocal, KmdfIrql, KmdfIrql2|