WdfRequestGetIoQueue function (wdfrequest.h)
[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.
Syntax
WDFQUEUE WdfRequestGetIoQueue(
[in] WDFREQUEST Request
);
Parameters
[in] Request
A handle to a framework request object.
Return value
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.
Remarks
For more information about WdfRequestGetIoQueue, see Obtaining Information About an I/O Request.
Examples
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));
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Universal |
| Minimum KMDF version | 1.0 |
| Minimum UMDF version | 2.0 |
| Header | wdfrequest.h (include Wdf.h) |
| Library | Wdf01000.sys (KMDF); WUDFx02000.dll (UMDF) |
| IRQL | <=DISPATCH_LEVEL |
| DDI compliance rules | DriverCreate(kmdf), InvalidReqAccess(kmdf), InvalidReqAccessLocal(kmdf), KmdfIrql(kmdf), KmdfIrql2(kmdf), KmdfIrqlExplicit(kmdf) |