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This method reads the specified value from the data store.
HRESULT ReadValue( UINT fWhichItem, WCHAR* wszDataBuffer, UINT cchDataBuffer);
Parameters
- fWhichItem
A CONFIG_DATA_ flag that indicates the specific value to read. - wszDataBuffer
Pointer to a caller-allocated buffer that this method uses to store the value it reads. - cchDataBuffer
The size of the buffer, in wide characters, represented by the pointer in the wszDataBuffer parameter.
Return Values
The following table shows possible return values.
| Value | Description |
|---|---|
| E_INVALIDARG | The fWhichItem parameter is not one of the CONFIG_DATA_ flags, or cchDataBuffer is not greater than zero. |
| E_POINTER | The address in wszDataBuffer is not valid. |
| S_OK | The value was returned successfully. |
| VOIP_E_NOTINITIALIZED | The data store is not initialized. It must be initialized using IVoIPConfigurationDataStore::Initialize. |
Requirements
OS Versions: Windows CE 5.0 and later.
Header: Voipconfigurationdatastore.idl, Voipconfigurationdatastore.h.
Link Library: Voipguid.lib.
See Also
IVoIPConfigurationDataStore | CONFIG_DATA_ | IIVoIPConfigurationDataStore::Initialize
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