Delegate MidiFilterProcedure

User defined callback to filter events.

Namespace: System.Dynamic.ExpandoObject

Assembly: ManagedBass.Midi.dll

Syntax

public delegate bool MidiFilterProcedure(int Handle, int Track, MidiEvent Event, bool Seeking, IntPtr User);

Parameters

Int32 Handle The MIDI stream handle.

Int32 Track The track that the event is from... 0 = 1st track.

MidiEvent Event The event structure.

Boolean Seeking true = the event is being processed while seeking, false = the event is being played.

IntPtr User The user instance data given when StreamSetFilter(Int32, Boolean, MidiFilterProcedure, IntPtr) was called.

Returns

Boolean true to process the event, and false to drop the event.

Remarks

The event's type, parameter, and channel can be modified, but not its position. It is also possible to apply additional events at the same time via StreamEvent(Int32, Int32, MidiEventType, Byte, Byte), but not StreamEvents(Int32, MidiEventsMode, Byte[], Int32). Note, NotesOff, and SoundOff events are ignored while seeking so they will not be received by a filtering function then. Tempo events can be changed while seeking but doing so when seeking in bytes (Bytes) will result in reaching a different position. Seeking in ticks (MIDITick) is unaffected by tempo changes. The Speed MIDI_EVENT_SPEED event can be used to modify the tempo without affecting seeking.