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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.
Method | Description |
---|---|
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 Methods | Description |
---|---|
IUnknown::QueryInterface | Returns pointers to supported interfaces. |
IUnknown::AddRef | Increments reference count. |
IUnknown::Release | Decrements reference count. |
Requirements
Requirement | Value |
---|---|
Minimum supported client |
Windows Vista [desktop apps only] |
Minimum supported server |
Windows Server 2008 [desktop apps only] |
Header |
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IDL |
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Library |
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