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IInterAppAudioHost Class Referenceabstract
VST 3 Interfaces to be implemented by the Host | VST 3 Interfaces defined in version 3.6.0

Inter-App Audio host Interface. More...

`#include <ivstinterappaudio.h>`

Inheritance diagram for IInterAppAudioHost:

## Public Member Functions
virtual tresult | getScreenSize (ViewRect *size, float *scale)=0
| get the size of the screen More...
virtual tresult | connectedToHost ()=0
| get status of connection More...
virtual tresult | switchToHost ()=0
| switch to the host. More...
virtual tresult | sendRemoteControlEvent (uint32 event)=0
| send a remote control event to the host More...
virtual tresult | getHostIcon (void **icon)=0
| ask for the host icon. More...
virtual tresult | scheduleEventFromUI (Event &event)=0
| schedule an event from the user interface thread More...
virtual IInterAppAudioPresetManager * | createPresetManager (const TUID &cid)=0
| get the preset manager More...
virtual tresult | showSettingsView ()=0
| show the settings view currently includes MIDI settings and Tempo setting More...
Public Member Functions inherited from FUnknown
virtual tresult | queryInterface (const TUID _iid, void **obj)=0
virtual uint32 | addRef ()=0
virtual uint32 | release ()=0

## Static Public Attributes
static const FUID | iid
Static Public Attributes inherited from FUnknown
static const FUID | iid

## Detailed Description

Inter-App Audio host Interface.

- [host imp]
- [passed as 'context' to IPluginBase::initialize () ]
- [released: 3.6.0]

Implemented by the InterAppAudio Wrapper.

## Member Function Documentation

virtual tresult getScreenSize | ( | ViewRect * | size,
|  | float * | scale
| ) |  |
| pure virtual

get the size of the screen

Parameters

  size | size of the screen
  scale | scale of the screen

Returns
  kResultTrue on success

virtual tresult connectedToHost | ( |  | ) |
| pure virtual

get status of connection

Returns
  kResultTrue if an Inter-App Audio connection is established

virtual tresult switchToHost | ( |  | ) |
| pure virtual

switch to the host.

Returns
  kResultTrue on success

virtual tresult sendRemoteControlEvent | ( | uint32 | event | ) |
| pure virtual

send a remote control event to the host

Parameters

  event | event type, see AudioUnitRemoteControlEvent in the iOS SDK documentation for possible types

Returns
  kResultTrue on success

virtual tresult getHostIcon | ( | void ** | icon | ) |
| pure virtual

ask for the host icon.

Parameters

  icon | pointer to a CGImageRef

Returns
  kResultTrue on success

virtual tresult scheduleEventFromUI | ( | Event & | event | ) |
| pure virtual

schedule an event from the user interface thread

Parameters

  event | the event to schedule

Returns
  kResultTrue on success

virtual IInterAppAudioPresetManager* createPresetManager | ( | const TUID & | cid | ) |
| pure virtual

get the preset manager

Parameters

  cid | class ID to use by the preset manager

Returns
  the preset manager. Needs to be released by called.

virtual tresult showSettingsView | ( |  | ) |
| pure virtual

show the settings view currently includes MIDI settings and Tempo setting

Returns
  kResultTrue on success

## Member Data Documentation

const FUID iid
| static

Empty

Copyright ©2018 Steinberg Media Technologies GmbH. All Rights Reserved. This documentation is under this license.