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IWDFMemory interface (wudfddi.h)

  • Article

[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 IWDFMemory interface exposes the framework memory object that provides access to a memory block.

Inheritance

The IWDFMemory interface inherits from IWDFObject. IWDFMemory also has these types of members:

  • Methods

Methods

The IWDFMemory interface has these methods.

 
IWDFMemory::CopyFromBuffer

The CopyFromBuffer method safely copies data from the specified source buffer to a memory object.
IWDFMemory::CopyFromMemory

The CopyFromMemory method safely copies data from the specified source buffer and prevents overruns that the copy operation might otherwise cause.
IWDFMemory::CopyToBuffer

The CopyToBuffer method safely copies data from a memory object to the specified target buffer.
IWDFMemory::GetDataBuffer

The GetDataBuffer method retrieves the data buffer that is associated with a memory object.
IWDFMemory::GetSize

The GetSize method retrieves the size of the data buffer that is associated with a memory object.
IWDFMemory::SetBuffer

The SetBuffer method assigns a specified buffer to a memory object that a driver created by calling IWDFDriver::CreatePreallocatedWdfMemory.

Requirements

Requirement Value
End of support Unavailable in UMDF 2.0 and later.
Target Platform Desktop
Minimum UMDF version 1.5
Header wudfddi.h