IWDFIoQueue::DrainSynchronously method

[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 DrainSynchronously method directs the queue to reject new incoming I/O requests and allows already-queued requests to be delivered to the driver for processing. This method returns after all requests are completed or canceled.

Syntax

void DrainSynchronously(

);

Parameters

This function has no parameters.

Return Value

None

Remarks

The DrainSynchronously method is a synchronous version of the IWDFIoQueue::Drain method. That is, DrainSynchronously does not return to the driver until the queue is drained.

Requirements

   
End of support Unavailable in UMDF 2.0 and later.
Target Platform Desktop
Minimum UMDF version 1.5
Header wudfddi.h (include Wudfddi.h)
DLL WUDFx.dll

See Also

IWDFIoQueue

IWDFIoQueue::Drain