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The IWiaTransferCallback interface receives callbacks during a data transfer. |
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IWiaTransferCallback interface (Wia.h) |
reference |
05/31/2018 |
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The IWiaTransferCallback interface receives callbacks during a data transfer.
The IWiaTransferCallback interface inherits from the IUnknown interface. IWiaTransferCallback also has these types of members:
The IWiaTransferCallback interface has these methods.
Method | Description |
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GetNextStream | Gets a new stream for the specified item. |
TransferCallback | Provides progress and other notifications during a transfer. |
Image processing filter developers should implement this interface and the IWiaImageFilter interface.
The IWiaTransferCallback interface, like all Component Object Model (COM) interfaces, inherits the IUnknown interface methods.
IUnknown Methods | Description |
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IUnknown::QueryInterface | Returns pointers to supported interfaces. |
IUnknown::AddRef | Increments reference count. |
IUnknown::Release | Decrements reference count. |
Requirement | Value |
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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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