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IPortableDevicePropVariantCollection::GetAt method
The GetAt method retrieves an item from the collection by a zero-based index.
Syntax
HRESULT GetAt( [in] const DWORD dwIndex, [out] PROPVARIANT *pValue );
Parameters
- dwIndex [in]
-
DWORD that contains the zero-based index of the item to retrieve.
- pValue [out]
-
Pointer to a PROPVARIANT structure. The caller is responsible for freeing this memory by calling PropVariantClear.
Return value
The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Return code | Description |
|---|---|
|
The method succeeded. |
|
A required pointer argument was NULL. |
|
The index that was passed in was out of range. |
Examples
For an example of how to use this method see Retrieving the Functional Categories Supported by a Device.
Requirements
|
Header |
|
|---|---|
|
Library |
|
See also
- IPortableDevicePropVariantCollection Interface
- Retrieving an Object Identifier from a Persistent Unique Identifier
- Retrieving Supported Service Events
- Retrieving Supported Service Formats
- Retrieving Supported Service Methods
- Retrieving the Content Types Supported by a Device
- Retrieving the Functional Categories Supported by a Device
- Retrieving the Functional Object Identifiers for a Device
- Retrieving the Rendering Capabilities Supported by a Device
- Setting Properties for Multiple Objects
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