Wwise SDK 2022.1.8

Asynchronously posts an Event to the sound engine (by event ID). The callback function can be used to be noticed when markers are reached or when the event is finished. An array of wave file sources can be provided to resolve External Sources triggered by the event.

Returns

The playing ID of the event launched, or AK_INVALID_PLAYING_ID if posting the event failed and an error will be displayed in the debug console and the Wwise Profiler.

Remarks

If used, the array of external sources should contain the information for each external source triggered by the event. When triggering an event with multiple external sources, you need to differentiate each source by using the cookie property in the External Source in the Wwise project and in AkExternalSourceInfo.

Note: If an event triggers the playback of more than one external source, they must be named uniquely in the project (therefore have a unique cookie) in order to tell them apart when filling the AkExternalSourceInfo structures.

See also

• Concept: Events
• Integrating External Sources
• AK::SoundEngine::RenderAudio()
• AK::SoundEngine::GetIDFromString()
• AK::SoundEngine::GetSourcePlayPosition()

Parameters

in_eventID	Unique ID of the event
in_gameObjectID	Associated game object ID
in_uFlags	Bitmask: see AkCallbackType
in_pfnCallback	Callback function
in_pCookie	Callback cookie that will be sent to the callback function along with additional information
in_cExternals	Optional count of external source structures
in_pExternalSources	Optional array of external source resolution information
in_PlayingID	Optional (advanced users only) Specify the playing ID to target with the event. Will Cause active actions in this event to target an existing Playing ID. Let it be AK_INVALID_PLAYING_ID or do not specify any for normal playback.