IWiaTransfer interface

The IWiaTransfer interface provides stream-based transfer of data.

Members

The IWiaTransfer interface inherits from the IUnknown interface. IWiaTransfer also has these types of members:

Methods

The IWiaTransfer interface has these methods.

MethodDescription
Cancel

Cancels the current transfer operation.

Download

Initiates a data download to the caller.

EnumWIA_FORMAT_INFO

Creates an enumerator for the transfer formats that the WIA 2.0 device supports.

Upload

Initiates a data upload of a single item from the caller.

 

Remarks

The IWiaTransfer interface, like all Component Object Model (COM) interfaces, inherits the IUnknown interface methods.

IUnknown MethodsDescription
IUnknown::QueryInterface Returns pointers to supported interfaces.
IUnknown::AddRef Increments reference count.
IUnknown::Release Decrements reference count.

 

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Wia.h

IDL

Wia.idl

Library

Wiaguid.lib

 

 

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