VST 3 Interfaces: NoteExpressionTypeInfo Struct Reference
Author: Steinberg

VST 3 Interfaces VST 3.7 SDK for developing VST plug-in

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NoteExpressionTypeInfo Struct Reference

NoteExpressionTypeInfo is the structure describing a note expression supported by the plug-in. More...

`#include <ivstnoteexpression.h>`

## Public Types
enum | NoteExpressionTypeFlags { kIsBipolar = 1 << 0, kIsOneShot = 1 << 1, kIsAbsolute = 1 << 2, kAssociatedParameterIDValid = 1 << 3 }

## Public Attributes
NoteExpressionTypeID | typeId
| unique identifier of this note Expression type
String128 | title
| note Expression type title (e.g. "Volume")
String128 | shortTitle
| note Expression type short title (e.g. "Vol")
String128 | units
| note Expression type unit (e.g. "dB")
int32 | unitId
| id of unit this NoteExpression belongs to (see vst3Units), in order to sort the note expression, it is possible to use unitId like for parameters. -1 means no unit used.
NoteExpressionValueDescription | valueDesc
| value description see NoteExpressionValueDescription
ParamID | associatedParameterId
| optional associated parameter ID (for mapping from note expression to global (using the parameter automation for example) and back). Only used when kAssociatedParameterIDValid is set in flags.
int32 | flags
| NoteExpressionTypeFlags (see below)

## Detailed Description

NoteExpressionTypeInfo is the structure describing a note expression supported by the plug-in.

This structure is used by the method INoteExpressionController::getNoteExpressionInfo.

See Also
  INoteExpressionController

## Member Enumeration Documentation

enum NoteExpressionTypeFlags

Enumerator
kIsBipolar | event is bipolar (centered), otherwise unipolar
kIsOneShot | event occurs only one time for its associated note (at begin of the noteOn)
kIsAbsolute | This note expression will apply an absolute change to the sound (not relative (offset))
kAssociatedParameterIDValid | indicates that the associatedParameterID is valid and could be used

## Member Data Documentation

NoteExpressionTypeID typeId

unique identifier of this note Expression type

String128 title

note Expression type title (e.g. "Volume")

String128 shortTitle

note Expression type short title (e.g. "Vol")

String128 units

note Expression type unit (e.g. "dB")

int32 unitId

id of unit this NoteExpression belongs to (see vst3Units), in order to sort the note expression, it is possible to use unitId like for parameters. -1 means no unit used.

NoteExpressionValueDescription valueDesc

value description see NoteExpressionValueDescription

ParamID associatedParameterId

optional associated parameter ID (for mapping from note expression to global (using the parameter automation for example) and back). Only used when kAssociatedParameterIDValid is set in flags.

int32 flags

NoteExpressionTypeFlags (see below)

Empty

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