Class CMMFMidiEvent

class CMMFMidiEvent : public CBase;

Description

Describe a MIDI event. Contains a UID to define the actual event type, and an integer to define the event code.

Derivation

• CBase - Base class for all classes to be instantiated on the heap.

• CMMFMidiEvent - Describe a MIDI event. Contains a UID to define the actual event type, and an in...

Members

Defined in CMMFMidiEvent:

• CMMFMidiEvent()Default constructor.
• CMMFMidiEvent(TUid,TInt)Constructor.
• CopyL(const CMMFMidiEvent &)Copies a MIDI event into this CMMFMidiEvent.
• ExternalizeL(RWriteStream &)const...
• InternalizeL(RReadStream &)...
• iBankIdIdentifier of a bank occupying, at most, 14 bits.
• iChannelChannel
• iErrorCodeThe error code associated with the MIDI event.
• iEventTypeA UID to define the type of MIDI event.
• iInstrumentIdIdentifier of a specific instrument.
• iMetaDataEntryIdMeta data entry. Client will retrieve meta data entry by calling GetMetaDataEntr...
• iMicroBeatsGeneral purpose time stamp in micro beats per minute.
• iMicroSecondsGeneral purpose time stamp in microseconds.
• iMipMessageArray of logical {channel, MIP} value pairs.
• iMuteMute state of a track or of a channel.
• iNewStateCurrent state of the MIDI client utility object.
• iOldStateOld state of the MIDI client utility object.
• iPolyphonyPolyphony of the MIDI engine.
• iTempoMicroBeatsTempo value in micro beats per minute.
• iVolumeInDecibelsVolume in decibel of a logical channel.
• ~CMMFMidiEvent()Destructor.

Inherited from CBase:

• Delete(CBase *)Deletes the specified object.
• Extension_(TUint,TAny *&,TAny *)Extension function
• operator new(TUint)Allocates the object from the heap and then initialises its contents to binary z...
• operator new(TUint,TAny *)Initialises the object to binary zeroes.
• operator new(TUint,TLeave)Allocates the object from the heap and then initialises its contents to binary z...
• operator new(TUint,TLeave,TUint)Allocates the object from the heap and then initialises its contents to binary z...
• operator new(TUint,TUint)Allocates the object from the heap and then initialises its contents to binary z...

IMPORT_C CMMFMidiEvent(TUid aEventType, TInt aErrorCode);

Description

Constructor.

Parameters

IMPORT_C CMMFMidiEvent();

Description

Default constructor.

IMPORT_C ~CMMFMidiEvent();

Description

Destructor.

IMPORT_C void ExternalizeL(RWriteStream &aStream) const;

Description

Externalize the object to a stream. All the member variables will be written to the stream.

Parameters

IMPORT_C void InternalizeL(RReadStream &aStream);

Description

Internalize the object from a stream. All the member variables will be read from the stream.

Parameters

IMPORT_C void CopyL(const CMMFMidiEvent &aOther);

Description

Copies a MIDI event into this CMMFMidiEvent.

Parameters

TUid iEventType;

Description

A UID to define the type of MIDI event.

TInt iErrorCode;

Description

The error code associated with the MIDI event.

TMidiState iOldState;

Description

Old state of the MIDI client utility object.

TMidiState iNewState;

Description

Current state of the MIDI client utility object.

TTimeIntervalMicroSeconds iMicroSeconds;

Description

General purpose time stamp in microseconds.

TInt64 iMicroBeats;

Description

General purpose time stamp in micro beats per minute.

TInt iChannel;

Description

Channel

TReal32 iVolumeInDecibels;

Description

Volume in decibel of a logical channel.

TBool iMute;

Description

Mute state of a track or of a channel.

TInt iMetaDataEntryId;

Description

Meta data entry. Client will retrieve meta data entry by calling GetMetaDataEntryL() using this TInt to indicate which meta data entry to retrieve.

RArray< TMipMessageEntry > iMipMessage;

Description

Array of logical {channel, MIP} value pairs.

TInt iPolyphony;

Description

Polyphony of the MIDI engine.

TInt iBankId;

Description

Identifier of a bank occupying, at most, 14 bits.

TInt iInstrumentId;

Description

Identifier of a specific instrument.

TInt iTempoMicroBeats;

Description

Tempo value in micro beats per minute.