Class MConverterUiObserver

class MConverterUiObserver;

Description

Interface implemented by the client of a conversion operation to observe conversion progress.

Members

Defined in MConverterUiObserver:

• EFailureConversion failed.
• EPartialSuccessConversion partially succeeded.
• ERemoveDelete converted data.
• ERepeatReconvert data.
• ERetainKeep already converted data.
• ESuccessConversion succeeded.
• MaxSteps(TInt,TInt)Gets the maximum number of steps that the conversion operation can take.
• QueryPasswordL(const TDesC &)Queries the client for a password in order to access the data.
• Reserved1_Conv_Obs()
• Result(TInt,TInt)Alerts the client to an error in conversion.
• TActionDescribes the actions that the converter should take.
• TResultDescribes the result of a conversion operation.

See also:

• CConverterBase2Base Class for Ecom Style Converters The methods in CConverterBase2 are inherite...

virtual void MaxSteps(TInt aMax, TInt aObject)=0;

Description

Gets the maximum number of steps that the conversion operation can take.

The conversion may complete in less than this number of steps (for example if an error occurs or the action is cancelled).

Each step is a call to CConverterBase2::DoConvert(), although during synchronous conversions this is transparent to the client code.

Parameters

TInt aMax Maximum number of conversion steps. TInt aObject Index that identifies an embedded object when one is being converted.

virtual TInt Result(TInt aResult, TInt aObject)=0;

Description

Alerts the client to an error in conversion.

Parameters

TInt aResult A TResult value indicating the conversion state. TInt aObject Index that identifies an embedded object when one is being converted.

Return value

TInt A TAction value that indicates what action the converter should take.

virtual HBufC* QueryPasswordL(const TDesC &aClue)=0;

Description

Queries the client for a password in order to access the data.

Parameters

const TDesC16 &aClue Data with a meaning that is specific to each converter: it could for example indicate where the password is stored.

Return value

HBufC16 * The password entered.

IMPORT_C virtual void Reserved1_Conv_Obs();

Description

TResult

Description

Describes the result of a conversion operation.

ESuccess Conversion succeeded. EPartialSuccess Conversion partially succeeded. EFailure Conversion failed.

TAction

Description

Describes the actions that the converter should take.

ERetain Keep already converted data. ERemove Delete converted data. ERepeat Reconvert data.