IWDFIoRequestCompletionParams::GetWriteParameters method (wudfddi.h)

[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 GetWriteParameters method retrieves parameters that are associated with the completion of a write request.

Syntax

void GetWriteParameters(
  [out] IWDFMemory **ppWriteMemory,
  [out] SIZE_T     *pBytesWritten,
  [out] SIZE_T     *pWriteMemoryOffset
);

Parameters

[out] ppWriteMemory

A pointer to a variable that receives a pointer to the IWDFMemory interface for access to the write buffer for the completion of the write request.

This parameter is optional. The driver can pass NULL if the driver does not require the information.

[out] pBytesWritten

A pointer to a variable that receives the size, in bytes, of the write buffer for the completion of the write request.

This parameter is optional. The driver can pass NULL if the driver does not require the information.

[out] pWriteMemoryOffset

A pointer to a variable that receives the offset, in bytes, into the write buffer for the completion of the write request.

This parameter is optional. The driver can pass NULL if the driver does not require the information.

Return value

None

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

IWDFIoRequestCompletionParams

IWDFMemory