IWiaItem2::GetRootItem method
Gets the root item of a tree of item objects used to represent a Windows Image Acquisition (WIA) 2.0 hardware device.
Syntax
HRESULT GetRootItem(
[out] IWiaItem2 **ppIWiaItem2
);
Parameters
-
ppIWiaItem2 [out]
-
Type: IWiaItem2**
Receives the address of a pointer to the IWiaItem2 interface of the root item.
Return value
Type: HRESULT
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Remarks
Given any IWiaItem2 object in the object tree of a WIA 2.0 hardware device, the application retrieves a pointer to the root item by calling this function.
Applications must call the IUnknown::Release method on the interface pointers they receive through the ppIWiaItem2 parameter.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2008 [desktop apps only] |
| Header |
|
| IDL |
|