IWDFIoRequest interface
The IWDFIoRequest interface exposes an I/O request object.
Members
The IWDFIoRequest interface inherits from IWDFObject. IWDFIoRequest also has these types of members:
Methods
The IWDFIoRequest interface has these methods.
| Method | Description |
|---|---|
| IWDFIoRequest::CancelSentRequest |
The CancelSentRequest method attempts to cancel the I/O request that the driver previously submitted to an I/O target. |
| IWDFIoRequest::Complete |
The Complete method completes an I/O request. |
| IWDFIoRequest::CompleteWithInformation |
The CompleteWithInformation method completes a request with the supplied information. |
| IWDFIoRequest::FormatUsingCurrentType |
The FormatUsingCurrentType method formats an I/O request so that the driver can forward it, unmodified, to the next-lower driver. |
| IWDFIoRequest::ForwardToIoQueue |
The ForwardToIoQueue method forwards (that is, requeues) an I/O request to one of the calling driver's I/O queues. |
| IWDFIoRequest::GetCompletionParams |
The GetCompletionParams method retrieves the parameters object for the completion of an I/O request object. |
| IWDFIoRequest::GetCreateParameters |
The GetCreateParameters method retrieves the request parameters for a create-type request. |
| IWDFIoRequest::GetDeviceIoControlParameters |
The GetDeviceIoControlParameters method retrieves the request parameters for a device I/O control-type request. |
| IWDFIoRequest::GetFileObject |
The GetFileObject method retrieves a pointer to the IWDFFile interface that is associated with an I/O request. |
| IWDFIoRequest::GetInputMemory |
The GetInputMemory method retrieves the memory object that represents the input buffer in an I/O request. |
| IWDFIoRequest::GetIoQueue |
The GetIoQueue method retrieves the I/O queue object that is associated with an I/O request. |
| IWDFIoRequest::GetOutputMemory |
The GetOutputMemory method retrieves the memory object that represents the output buffer for an I/O request. |
| IWDFIoRequest::GetReadParameters |
The GetReadParameters method retrieves the request parameters for a read-type request. |
| IWDFIoRequest::GetRequestorProcessId |
The GetRequestorProcessId method retrieves the identifier of the process that sent an I/O request. |
| IWDFIoRequest::GetType |
The GetType method retrieves the type of operation that a request contains. |
| IWDFIoRequest::GetWriteParameters |
The GetWriteParameters method retrieves the request parameters for a write-type request. |
| IWDFIoRequest::Impersonate |
The Impersonate method registers the interface for the method that the framework should call for impersonation. |
| IWDFIoRequest::IsFrom32BitProcess |
The IsFrom32BitProcess method determines whether a request originated from a 32-bit process. |
| IWDFIoRequest::MarkCancelable |
The MarkCancelable method enables the canceling of the I/O request. |
| IWDFIoRequest::Send |
The Send method sends a request to the specified I/O target. |
| IWDFIoRequest::SetCompletionCallback |
The SetCompletionCallback method registers the interface for the OnCompletion method that the framework should call when an I/O request completes. |
| IWDFIoRequest::SetInformation |
The SetInformation method sets the size of information for a request. |
| IWDFIoRequest::UnmarkCancelable |
The UnmarkCancelable method disables the canceling of an I/O request. |
Requirements
|
End of support | Unavailable in UMDF 2.0 and later. |
|---|---|
|
Minimum UMDF version | 1.5 |
|
Header |
|
|
DLL |
|
