IPortableDeviceValues::GetFloatValue

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The GetFloatValue method retrieves a FLOAT value (type VT_R4) specified by a key.

Syntax

  HRESULT GetFloatValue(
  REFPROPERTYKEY  key,
  FLOAT*  pValue
);

Parameters

key

[in] A REFPROPERTYKEY key that specifies the item to retrieve.

pValue

[out] Pointer to the retrieved FLOAT value.

Return Values

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code	Description
S_OK	The method succeeded.
DISP_E_TYPEMISMATCH	The property specified by key is not a FLOAT type.
E_PROP_ID_UNSUPPORTED	The property specified by key is not in the collection.

Requirements

Header: Defined in PortableDeviceTypes.h

Library: PortableDeviceGUIDs.lib

See Also

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