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IWDFIoRequest::FormatUsingCurrentType method (wudfddi.h)

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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.]

The FormatUsingCurrentType method formats an I/O request so that the driver can forward it, unmodified, to the next-lower driver.

Syntax

void FormatUsingCurrentType();

Return value

None

Remarks

When a driver receives an I/O request, the driver might forward the request to the local I/O target, unmodified. To forward the unmodified request, the driver must:

  • Call FormatUsingCurrentType to format the request so that the framework can pass the request to the driver's local I/O target.
  • Call the IWDFIoRequest::Send method to send the request to the I/O target.

Examples

For a code example of how to use the FormatUsingCurrentType method, see IWDFIoRequest::Send.

Requirements

Requirement Value
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

IWDFIoRequest

IWDFIoRequest::Send